Integration test: Fix yaml parser and crash on failure (#1423)

* Fix yaml parser and crash on failure

* Log response in case of ResponseError

* Updated cleanup

* Updated skip list

* Updated skip list

* Updated skip list

.ci/test-matrix.yml

@@ -1,12 +1,11 @@
 ---
 STACK_VERSION:
-  - 7.11.0-SNAPSHOT
+  - 7.12.0-SNAPSHOT
 
 NODE_JS_VERSION:
   - 14
   - 12
   - 10
-  - 8
 
 TEST_SUITE:
   - free

.github/workflows/nodejs.yml

@@ -40,31 +40,6 @@ jobs:
       run: |
         npm run test:types
 
-  test-node-v8:
-    name: Test
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      matrix:
-        node-version: [8.x]
-        os: [ubuntu-latest, windows-latest, macOS-latest]
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-
-    - name: Install
-      run: |
-        npm install
-
-    - name: Test
-      run: |
-        npm run test:node8
-
   helpers-integration-test:
     name: Helpers integration test
     runs-on: ubuntu-latest
@@ -86,7 +61,7 @@ jobs:
     - name: Runs Elasticsearch
       uses: elastic/elastic-github-actions/elasticsearch@master
       with:
-        stack-version: 7.11.0-SNAPSHOT
+        stack-version: 7.12.0-SNAPSHOT
 
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1

.gitignore

@@ -60,3 +60,4 @@ test/benchmarks/macro/fixtures/*
 .cache
 
 test/bundlers/**/bundle.js
+test/bundlers/parcel-test/.parcel-cache

.npmignore

@@ -70,3 +70,7 @@ certs
 .github
 CODE_OF_CONDUCT.md
 CONTRIBUTING.md
+
+# CANARY-PACKAGE
+api/kibana.d.ts
+# /CANARY-PACKAGE

README.md

@@ -28,7 +28,7 @@ npm install @elastic/elasticsearch
 
 ### Node.js support
 
-NOTE: The minimum supported version of Node.js is `v8`.
+NOTE: The minimum supported version of Node.js is `v10`.
 
 The client versioning follows the Elastc Stack versioning, this means that
 major, minor, and patch releases are done following a precise schedule that

api/api/async_search.js

@@ -35,15 +35,15 @@ AsyncSearchApi.prototype.delete = function asyncSearchDeleteApi (params, options
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_async_search' + '/' + encodeURIComponent(id)
 
@@ -62,15 +62,15 @@ AsyncSearchApi.prototype.get = function asyncSearchGetApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_async_search' + '/' + encodeURIComponent(id)
 
@@ -89,15 +89,15 @@ AsyncSearchApi.prototype.status = function asyncSearchStatusApi (params, options
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_async_search' + '/' + 'status' + '/' + encodeURIComponent(id)
 
@@ -115,10 +115,10 @@ AsyncSearchApi.prototype.status = function asyncSearchStatusApi (params, options
 AsyncSearchApi.prototype.submit = function asyncSearchSubmitApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_async_search'

api/api/autoscaling.js

@@ -35,15 +35,15 @@ AutoscalingApi.prototype.deleteAutoscalingPolicy = function autoscalingDeleteAut
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_autoscaling' + '/' + 'policy' + '/' + encodeURIComponent(name)
 
@@ -61,10 +61,10 @@ AutoscalingApi.prototype.deleteAutoscalingPolicy = function autoscalingDeleteAut
 AutoscalingApi.prototype.getAutoscalingCapacity = function autoscalingGetAutoscalingCapacityApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_autoscaling' + '/' + 'capacity'
 
@@ -83,15 +83,15 @@ AutoscalingApi.prototype.getAutoscalingPolicy = function autoscalingGetAutoscali
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_autoscaling' + '/' + 'policy' + '/' + encodeURIComponent(name)
 
@@ -110,19 +110,19 @@ AutoscalingApi.prototype.putAutoscalingPolicy = function autoscalingPutAutoscali
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_autoscaling' + '/' + 'policy' + '/' + encodeURIComponent(name)
 

api/api/bulk.js

@@ -30,21 +30,21 @@ function bulkApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_bulk'

api/api/cat.js

@@ -23,8 +23,8 @@
 /* eslint no-unused-vars: 0 */
 
 const { handleError, snakeCaseKeys, normalizeArguments, kConfigurationError } = require('../utils')
-const acceptedQuerystring = ['format', 'local', 'h', 'help', 's', 'v', 'expand_wildcards', 'pretty', 'human', 'error_trace', 'source', 'filter_path', 'bytes', 'master_timeout', 'fields', 'time', 'ts', 'health', 'pri', 'include_unloaded_segments', 'full_id', 'active_only', 'detailed', 'index', 'ignore_unavailable', 'nodes', 'actions', 'parent_task_id', 'size', 'allow_no_match', 'allow_no_datafeeds', 'allow_no_jobs', 'from']
-const snakeCase = { expandWildcards: 'expand_wildcards', errorTrace: 'error_trace', filterPath: 'filter_path', masterTimeout: 'master_timeout', includeUnloadedSegments: 'include_unloaded_segments', fullId: 'full_id', activeOnly: 'active_only', ignoreUnavailable: 'ignore_unavailable', parentTaskId: 'parent_task_id', allowNoMatch: 'allow_no_match', allowNoDatafeeds: 'allow_no_datafeeds', allowNoJobs: 'allow_no_jobs' }
+const acceptedQuerystring = ['format', 'local', 'h', 'help', 's', 'v', 'expand_wildcards', 'pretty', 'human', 'error_trace', 'source', 'filter_path', 'bytes', 'master_timeout', 'fields', 'time', 'ts', 'health', 'pri', 'include_unloaded_segments', 'full_id', 'include_bootstrap', 'active_only', 'detailed', 'index', 'ignore_unavailable', 'nodes', 'actions', 'parent_task_id', 'size', 'allow_no_match', 'allow_no_datafeeds', 'allow_no_jobs', 'from']
+const snakeCase = { expandWildcards: 'expand_wildcards', errorTrace: 'error_trace', filterPath: 'filter_path', masterTimeout: 'master_timeout', includeUnloadedSegments: 'include_unloaded_segments', fullId: 'full_id', includeBootstrap: 'include_bootstrap', activeOnly: 'active_only', ignoreUnavailable: 'ignore_unavailable', parentTaskId: 'parent_task_id', allowNoMatch: 'allow_no_match', allowNoDatafeeds: 'allow_no_datafeeds', allowNoJobs: 'allow_no_jobs' }
 
 function CatApi (transport, ConfigurationError) {
   this.transport = transport
@@ -34,10 +34,10 @@ function CatApi (transport, ConfigurationError) {
 CatApi.prototype.aliases = function catAliasesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'aliases' + '/' + encodeURIComponent(name)
@@ -60,10 +60,10 @@ CatApi.prototype.aliases = function catAliasesApi (params, options, callback) {
 CatApi.prototype.allocation = function catAllocationApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, nodeId, node_id, ...querystring } = params
+  let { method, body, nodeId, node_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((node_id || nodeId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'allocation' + '/' + encodeURIComponent(node_id || nodeId)
@@ -86,10 +86,10 @@ CatApi.prototype.allocation = function catAllocationApi (params, options, callba
 CatApi.prototype.count = function catCountApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'count' + '/' + encodeURIComponent(index)
@@ -112,10 +112,10 @@ CatApi.prototype.count = function catCountApi (params, options, callback) {
 CatApi.prototype.fielddata = function catFielddataApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, fields, ...querystring } = params
+  let { method, body, fields, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((fields) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'fielddata' + '/' + encodeURIComponent(fields)
@@ -138,10 +138,10 @@ CatApi.prototype.fielddata = function catFielddataApi (params, options, callback
 CatApi.prototype.health = function catHealthApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'health'
 
@@ -159,10 +159,10 @@ CatApi.prototype.health = function catHealthApi (params, options, callback) {
 CatApi.prototype.help = function catHelpApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat'
 
@@ -180,10 +180,10 @@ CatApi.prototype.help = function catHelpApi (params, options, callback) {
 CatApi.prototype.indices = function catIndicesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'indices' + '/' + encodeURIComponent(index)
@@ -206,10 +206,10 @@ CatApi.prototype.indices = function catIndicesApi (params, options, callback) {
 CatApi.prototype.master = function catMasterApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'master'
 
@@ -227,10 +227,10 @@ CatApi.prototype.master = function catMasterApi (params, options, callback) {
 CatApi.prototype.nodeattrs = function catNodeattrsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'nodeattrs'
 
@@ -248,10 +248,10 @@ CatApi.prototype.nodeattrs = function catNodeattrsApi (params, options, callback
 CatApi.prototype.nodes = function catNodesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'nodes'
 
@@ -269,10 +269,10 @@ CatApi.prototype.nodes = function catNodesApi (params, options, callback) {
 CatApi.prototype.pendingTasks = function catPendingTasksApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'pending_tasks'
 
@@ -290,10 +290,10 @@ CatApi.prototype.pendingTasks = function catPendingTasksApi (params, options, ca
 CatApi.prototype.plugins = function catPluginsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'plugins'
 
@@ -311,10 +311,10 @@ CatApi.prototype.plugins = function catPluginsApi (params, options, callback) {
 CatApi.prototype.recovery = function catRecoveryApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'recovery' + '/' + encodeURIComponent(index)
@@ -337,10 +337,10 @@ CatApi.prototype.recovery = function catRecoveryApi (params, options, callback)
 CatApi.prototype.repositories = function catRepositoriesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'repositories'
 
@@ -358,10 +358,10 @@ CatApi.prototype.repositories = function catRepositoriesApi (params, options, ca
 CatApi.prototype.segments = function catSegmentsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'segments' + '/' + encodeURIComponent(index)
@@ -384,10 +384,10 @@ CatApi.prototype.segments = function catSegmentsApi (params, options, callback)
 CatApi.prototype.shards = function catShardsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'shards' + '/' + encodeURIComponent(index)
@@ -410,10 +410,10 @@ CatApi.prototype.shards = function catShardsApi (params, options, callback) {
 CatApi.prototype.snapshots = function catSnapshotsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, repository, ...querystring } = params
+  let { method, body, repository, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((repository) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'snapshots' + '/' + encodeURIComponent(repository)
@@ -436,10 +436,10 @@ CatApi.prototype.snapshots = function catSnapshotsApi (params, options, callback
 CatApi.prototype.tasks = function catTasksApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cat' + '/' + 'tasks'
 
@@ -457,10 +457,10 @@ CatApi.prototype.tasks = function catTasksApi (params, options, callback) {
 CatApi.prototype.templates = function catTemplatesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'templates' + '/' + encodeURIComponent(name)
@@ -483,10 +483,10 @@ CatApi.prototype.templates = function catTemplatesApi (params, options, callback
 CatApi.prototype.threadPool = function catThreadPoolApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, threadPoolPatterns, thread_pool_patterns, ...querystring } = params
+  let { method, body, threadPoolPatterns, thread_pool_patterns, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((thread_pool_patterns || threadPoolPatterns) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'thread_pool' + '/' + encodeURIComponent(thread_pool_patterns || threadPoolPatterns)
@@ -509,10 +509,10 @@ CatApi.prototype.threadPool = function catThreadPoolApi (params, options, callba
 CatApi.prototype.mlDataFrameAnalytics = function catMlDataFrameAnalyticsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'ml' + '/' + 'data_frame' + '/' + 'analytics' + '/' + encodeURIComponent(id)
@@ -535,10 +535,10 @@ CatApi.prototype.mlDataFrameAnalytics = function catMlDataFrameAnalyticsApi (par
 CatApi.prototype.mlDatafeeds = function catMlDatafeedsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, datafeedId, datafeed_id, ...querystring } = params
+  let { method, body, datafeedId, datafeed_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((datafeed_id || datafeedId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'ml' + '/' + 'datafeeds' + '/' + encodeURIComponent(datafeed_id || datafeedId)
@@ -561,10 +561,10 @@ CatApi.prototype.mlDatafeeds = function catMlDatafeedsApi (params, options, call
 CatApi.prototype.mlJobs = function catMlJobsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, jobId, job_id, ...querystring } = params
+  let { method, body, jobId, job_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((job_id || jobId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'ml' + '/' + 'anomaly_detectors' + '/' + encodeURIComponent(job_id || jobId)
@@ -587,10 +587,10 @@ CatApi.prototype.mlJobs = function catMlJobsApi (params, options, callback) {
 CatApi.prototype.mlTrainedModels = function catMlTrainedModelsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, modelId, model_id, ...querystring } = params
+  let { method, body, modelId, model_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((model_id || modelId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'ml' + '/' + 'trained_models' + '/' + encodeURIComponent(model_id || modelId)
@@ -613,10 +613,10 @@ CatApi.prototype.mlTrainedModels = function catMlTrainedModelsApi (params, optio
 CatApi.prototype.transforms = function catTransformsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((transform_id || transformId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cat' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId)

api/api/ccr.js

@@ -35,15 +35,15 @@ CcrApi.prototype.deleteAutoFollowPattern = function ccrDeleteAutoFollowPatternAp
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
 
@@ -62,19 +62,19 @@ CcrApi.prototype.follow = function ccrFollowApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'follow'
 
@@ -93,15 +93,15 @@ CcrApi.prototype.followInfo = function ccrFollowInfoApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'info'
 
@@ -120,15 +120,15 @@ CcrApi.prototype.followStats = function ccrFollowStatsApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'stats'
 
@@ -147,19 +147,19 @@ CcrApi.prototype.forgetFollower = function ccrForgetFollowerApi (params, options
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'forget_follower'
 
@@ -177,10 +177,10 @@ CcrApi.prototype.forgetFollower = function ccrForgetFollowerApi (params, options
 CcrApi.prototype.getAutoFollowPattern = function ccrGetAutoFollowPatternApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
@@ -204,15 +204,15 @@ CcrApi.prototype.pauseAutoFollowPattern = function ccrPauseAutoFollowPatternApi
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name) + '/' + 'pause'
 
@@ -231,15 +231,15 @@ CcrApi.prototype.pauseFollow = function ccrPauseFollowApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'pause_follow'
 
@@ -258,19 +258,19 @@ CcrApi.prototype.putAutoFollowPattern = function ccrPutAutoFollowPatternApi (par
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
 
@@ -289,15 +289,15 @@ CcrApi.prototype.resumeAutoFollowPattern = function ccrResumeAutoFollowPatternAp
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name) + '/' + 'resume'
 
@@ -316,15 +316,15 @@ CcrApi.prototype.resumeFollow = function ccrResumeFollowApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'resume_follow'
 
@@ -342,10 +342,10 @@ CcrApi.prototype.resumeFollow = function ccrResumeFollowApi (params, options, ca
 CcrApi.prototype.stats = function ccrStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_ccr' + '/' + 'stats'
 
@@ -364,15 +364,15 @@ CcrApi.prototype.unfollow = function ccrUnfollowApi (params, options, callback)
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'unfollow'
 

api/api/clear_scroll.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function clearScrollApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, scrollId, scroll_id, ...querystring } = params
+  let { method, body, scrollId, scroll_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((scroll_id || scrollId) != null) {
     if (method == null) method = 'DELETE'
     path = '/' + '_search' + '/' + 'scroll' + '/' + encodeURIComponent(scroll_id || scrollId)

api/api/close_point_in_time.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function closePointInTimeApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_pit'
 

api/api/cluster.js

@@ -34,10 +34,10 @@ function ClusterApi (transport, ConfigurationError) {
 ClusterApi.prototype.allocationExplain = function clusterAllocationExplainApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + '_cluster' + '/' + 'allocation' + '/' + 'explain'
 
@@ -56,15 +56,15 @@ ClusterApi.prototype.deleteComponentTemplate = function clusterDeleteComponentTe
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_component_template' + '/' + encodeURIComponent(name)
 
@@ -82,10 +82,10 @@ ClusterApi.prototype.deleteComponentTemplate = function clusterDeleteComponentTe
 ClusterApi.prototype.deleteVotingConfigExclusions = function clusterDeleteVotingConfigExclusionsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_cluster' + '/' + 'voting_config_exclusions'
 
@@ -104,15 +104,15 @@ ClusterApi.prototype.existsComponentTemplate = function clusterExistsComponentTe
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'HEAD'
   path = '/' + '_component_template' + '/' + encodeURIComponent(name)
 
@@ -130,10 +130,10 @@ ClusterApi.prototype.existsComponentTemplate = function clusterExistsComponentTe
 ClusterApi.prototype.getComponentTemplate = function clusterGetComponentTemplateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_component_template' + '/' + encodeURIComponent(name)
@@ -156,10 +156,10 @@ ClusterApi.prototype.getComponentTemplate = function clusterGetComponentTemplate
 ClusterApi.prototype.getSettings = function clusterGetSettingsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cluster' + '/' + 'settings'
 
@@ -177,10 +177,10 @@ ClusterApi.prototype.getSettings = function clusterGetSettingsApi (params, optio
 ClusterApi.prototype.health = function clusterHealthApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cluster' + '/' + 'health' + '/' + encodeURIComponent(index)
@@ -203,10 +203,10 @@ ClusterApi.prototype.health = function clusterHealthApi (params, options, callba
 ClusterApi.prototype.pendingTasks = function clusterPendingTasksApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_cluster' + '/' + 'pending_tasks'
 
@@ -224,10 +224,10 @@ ClusterApi.prototype.pendingTasks = function clusterPendingTasksApi (params, opt
 ClusterApi.prototype.postVotingConfigExclusions = function clusterPostVotingConfigExclusionsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_cluster' + '/' + 'voting_config_exclusions'
 
@@ -246,19 +246,19 @@ ClusterApi.prototype.putComponentTemplate = function clusterPutComponentTemplate
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_component_template' + '/' + encodeURIComponent(name)
 
@@ -277,15 +277,15 @@ ClusterApi.prototype.putSettings = function clusterPutSettingsApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_cluster' + '/' + 'settings'
 
@@ -303,10 +303,10 @@ ClusterApi.prototype.putSettings = function clusterPutSettingsApi (params, optio
 ClusterApi.prototype.remoteInfo = function clusterRemoteInfoApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_remote' + '/' + 'info'
 
@@ -324,10 +324,10 @@ ClusterApi.prototype.remoteInfo = function clusterRemoteInfoApi (params, options
 ClusterApi.prototype.reroute = function clusterRerouteApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_cluster' + '/' + 'reroute'
 
@@ -346,15 +346,15 @@ ClusterApi.prototype.state = function clusterStateApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required url components
-  if (params['index'] != null && (params['metric'] == null)) {
+  if (params.index != null && (params.metric == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: metric')
     return handleError(err, callback)
   }
 
-  var { method, body, metric, index, ...querystring } = params
+  let { method, body, metric, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((metric) != null && (index) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cluster' + '/' + 'state' + '/' + encodeURIComponent(metric) + '/' + encodeURIComponent(index)
@@ -380,10 +380,10 @@ ClusterApi.prototype.state = function clusterStateApi (params, options, callback
 ClusterApi.prototype.stats = function clusterStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, nodeId, node_id, ...querystring } = params
+  let { method, body, nodeId, node_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((node_id || nodeId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_cluster' + '/' + 'stats' + '/' + 'nodes' + '/' + encodeURIComponent(node_id || nodeId)

api/api/count.js

@@ -30,15 +30,15 @@ function countApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_count'

api/api/create.js

@@ -30,23 +30,23 @@ function createApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'PUT'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_create'

api/api/dangling_indices.js

@@ -35,15 +35,15 @@ DanglingIndicesApi.prototype.deleteDanglingIndex = function danglingIndicesDelet
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index_uuid'] == null && params['indexUuid'] == null) {
+  if (params.index_uuid == null && params.indexUuid == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index_uuid or indexUuid')
     return handleError(err, callback)
   }
 
-  var { method, body, indexUuid, index_uuid, ...querystring } = params
+  let { method, body, indexUuid, index_uuid, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_dangling' + '/' + encodeURIComponent(index_uuid || indexUuid)
 
@@ -62,15 +62,15 @@ DanglingIndicesApi.prototype.importDanglingIndex = function danglingIndicesImpor
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index_uuid'] == null && params['indexUuid'] == null) {
+  if (params.index_uuid == null && params.indexUuid == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index_uuid or indexUuid')
     return handleError(err, callback)
   }
 
-  var { method, body, indexUuid, index_uuid, ...querystring } = params
+  let { method, body, indexUuid, index_uuid, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_dangling' + '/' + encodeURIComponent(index_uuid || indexUuid)
 
@@ -88,10 +88,10 @@ DanglingIndicesApi.prototype.importDanglingIndex = function danglingIndicesImpor
 DanglingIndicesApi.prototype.listDanglingIndices = function danglingIndicesListDanglingIndicesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_dangling'
 

api/api/delete.js

@@ -30,19 +30,19 @@ function deleteApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'DELETE'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id)

api/api/delete_by_query.js

@@ -30,25 +30,25 @@ function deleteByQueryApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_delete_by_query'

api/api/delete_by_query_rethrottle.js

@@ -30,19 +30,19 @@ function deleteByQueryRethrottleApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['task_id'] == null && params['taskId'] == null) {
+  if (params.task_id == null && params.taskId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: task_id or taskId')
     return handleError(err, callback)
   }
-  if (params['requests_per_second'] == null && params['requestsPerSecond'] == null) {
+  if (params.requests_per_second == null && params.requestsPerSecond == null) {
     const err = new this[kConfigurationError]('Missing required parameter: requests_per_second or requestsPerSecond')
     return handleError(err, callback)
   }
 
-  var { method, body, taskId, task_id, ...querystring } = params
+  let { method, body, taskId, task_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_delete_by_query' + '/' + encodeURIComponent(task_id || taskId) + '/' + '_rethrottle'
 

api/api/delete_script.js

@@ -30,15 +30,15 @@ function deleteScriptApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_scripts' + '/' + encodeURIComponent(id)
 

api/api/enrich.js

@@ -35,15 +35,15 @@ EnrichApi.prototype.deletePolicy = function enrichDeletePolicyApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_enrich' + '/' + 'policy' + '/' + encodeURIComponent(name)
 
@@ -62,15 +62,15 @@ EnrichApi.prototype.executePolicy = function enrichExecutePolicyApi (params, opt
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_enrich' + '/' + 'policy' + '/' + encodeURIComponent(name) + '/' + '_execute'
 
@@ -88,10 +88,10 @@ EnrichApi.prototype.executePolicy = function enrichExecutePolicyApi (params, opt
 EnrichApi.prototype.getPolicy = function enrichGetPolicyApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_enrich' + '/' + 'policy' + '/' + encodeURIComponent(name)
@@ -115,19 +115,19 @@ EnrichApi.prototype.putPolicy = function enrichPutPolicyApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_enrich' + '/' + 'policy' + '/' + encodeURIComponent(name)
 
@@ -145,10 +145,10 @@ EnrichApi.prototype.putPolicy = function enrichPutPolicyApi (params, options, ca
 EnrichApi.prototype.stats = function enrichStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_enrich' + '/' + '_stats'
 

api/api/eql.js

@@ -35,15 +35,15 @@ EqlApi.prototype.delete = function eqlDeleteApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_eql' + '/' + 'search' + '/' + encodeURIComponent(id)
 
@@ -62,15 +62,15 @@ EqlApi.prototype.get = function eqlGetApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_eql' + '/' + 'search' + '/' + encodeURIComponent(id)
 
@@ -85,23 +85,50 @@ EqlApi.prototype.get = function eqlGetApi (params, options, callback) {
   return this.transport.request(request, options, callback)
 }
 
+EqlApi.prototype.getStatus = function eqlGetStatusApi (params, options, callback) {
+  ;[params, options, callback] = normalizeArguments(params, options, callback)
+
+  // check required parameters
+  if (params.id == null) {
+    const err = new this[kConfigurationError]('Missing required parameter: id')
+    return handleError(err, callback)
+  }
+
+  let { method, body, id, ...querystring } = params
+  querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
+
+  let path = ''
+  if (method == null) method = 'GET'
+  path = '/' + '_eql' + '/' + 'search' + '/' + 'status' + '/' + encodeURIComponent(id)
+
+  // build request object
+  const request = {
+    method,
+    path,
+    body: null,
+    querystring
+  }
+
+  return this.transport.request(request, options, callback)
+}
+
 EqlApi.prototype.search = function eqlSearchApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_eql' + '/' + 'search'
 
@@ -116,4 +143,8 @@ EqlApi.prototype.search = function eqlSearchApi (params, options, callback) {
   return this.transport.request(request, options, callback)
 }
 
+Object.defineProperties(EqlApi.prototype, {
+  get_status: { get () { return this.getStatus } }
+})
+
 module.exports = EqlApi

api/api/exists.js

@@ -30,19 +30,19 @@ function existsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'HEAD'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id)

api/api/exists_source.js

@@ -30,28 +30,28 @@ function existsSourceApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['id'] != null && (params['type'] == null || params['index'] == null)) {
+  if (params.id != null && (params.type == null || params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: type, index')
     return handleError(err, callback)
-  } else if (params['type'] != null && (params['index'] == null)) {
+  } else if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'HEAD'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_source'

api/api/explain.js

@@ -30,19 +30,19 @@ function explainApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_explain'

api/api/features.js

@@ -0,0 +1,59 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+const { handleError, snakeCaseKeys, normalizeArguments, kConfigurationError } = require('../utils')
+const acceptedQuerystring = ['master_timeout', 'pretty', 'human', 'error_trace', 'source', 'filter_path']
+const snakeCase = { masterTimeout: 'master_timeout', errorTrace: 'error_trace', filterPath: 'filter_path' }
+
+function FeaturesApi (transport, ConfigurationError) {
+  this.transport = transport
+  this[kConfigurationError] = ConfigurationError
+}
+
+FeaturesApi.prototype.getFeatures = function featuresGetFeaturesApi (params, options, callback) {
+  ;[params, options, callback] = normalizeArguments(params, options, callback)
+
+  let { method, body, ...querystring } = params
+  querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
+
+  let path = ''
+  if (method == null) method = 'GET'
+  path = '/' + '_features'
+
+  // build request object
+  const request = {
+    method,
+    path,
+    body: null,
+    querystring
+  }
+
+  return this.transport.request(request, options, callback)
+}
+
+Object.defineProperties(FeaturesApi.prototype, {
+  get_features: { get () { return this.getFeatures } }
+})
+
+module.exports = FeaturesApi

api/api/field_caps.js

@@ -29,10 +29,10 @@ const snakeCase = { ignoreUnavailable: 'ignore_unavailable', allowNoIndices: 'al
 function fieldCapsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_field_caps'

api/api/get.js

@@ -30,19 +30,19 @@ function getApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id)

api/api/get_script.js

@@ -30,15 +30,15 @@ function getScriptApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_scripts' + '/' + encodeURIComponent(id)
 

api/api/get_script_context.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function getScriptContextApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_script_context'
 

api/api/get_script_languages.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function getScriptLanguagesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_script_language'
 

api/api/get_source.js

@@ -30,19 +30,19 @@ function getSourceApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_source'

api/api/graph.js

@@ -35,21 +35,21 @@ GraphApi.prototype.explore = function graphExploreApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_graph' + '/' + 'explore'

api/api/ilm.js

@@ -35,15 +35,15 @@ IlmApi.prototype.deleteLifecycle = function ilmDeleteLifecycleApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['policy'] == null) {
+  if (params.policy == null) {
     const err = new this[kConfigurationError]('Missing required parameter: policy')
     return handleError(err, callback)
   }
 
-  var { method, body, policy, ...querystring } = params
+  let { method, body, policy, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_ilm' + '/' + 'policy' + '/' + encodeURIComponent(policy)
 
@@ -62,15 +62,15 @@ IlmApi.prototype.explainLifecycle = function ilmExplainLifecycleApi (params, opt
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + encodeURIComponent(index) + '/' + '_ilm' + '/' + 'explain'
 
@@ -88,10 +88,10 @@ IlmApi.prototype.explainLifecycle = function ilmExplainLifecycleApi (params, opt
 IlmApi.prototype.getLifecycle = function ilmGetLifecycleApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, policy, ...querystring } = params
+  let { method, body, policy, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((policy) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_ilm' + '/' + 'policy' + '/' + encodeURIComponent(policy)
@@ -114,10 +114,10 @@ IlmApi.prototype.getLifecycle = function ilmGetLifecycleApi (params, options, ca
 IlmApi.prototype.getStatus = function ilmGetStatusApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_ilm' + '/' + 'status'
 
@@ -136,15 +136,15 @@ IlmApi.prototype.moveToStep = function ilmMoveToStepApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_ilm' + '/' + 'move' + '/' + encodeURIComponent(index)
 
@@ -163,15 +163,15 @@ IlmApi.prototype.putLifecycle = function ilmPutLifecycleApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['policy'] == null) {
+  if (params.policy == null) {
     const err = new this[kConfigurationError]('Missing required parameter: policy')
     return handleError(err, callback)
   }
 
-  var { method, body, policy, ...querystring } = params
+  let { method, body, policy, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_ilm' + '/' + 'policy' + '/' + encodeURIComponent(policy)
 
@@ -190,15 +190,15 @@ IlmApi.prototype.removePolicy = function ilmRemovePolicyApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_ilm' + '/' + 'remove'
 
@@ -217,15 +217,15 @@ IlmApi.prototype.retry = function ilmRetryApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_ilm' + '/' + 'retry'
 
@@ -243,10 +243,10 @@ IlmApi.prototype.retry = function ilmRetryApi (params, options, callback) {
 IlmApi.prototype.start = function ilmStartApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_ilm' + '/' + 'start'
 
@@ -264,10 +264,10 @@ IlmApi.prototype.start = function ilmStartApi (params, options, callback) {
 IlmApi.prototype.stop = function ilmStopApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_ilm' + '/' + 'stop'
 

api/api/index.js

@@ -30,19 +30,19 @@ function indexApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'PUT'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id)

api/api/indices.js

@@ -35,25 +35,25 @@ IndicesApi.prototype.addBlock = function indicesAddBlockApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['block'] == null) {
+  if (params.block == null) {
     const err = new this[kConfigurationError]('Missing required parameter: block')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['block'] != null && (params['index'] == null)) {
+  if (params.block != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, block, ...querystring } = params
+  let { method, body, index, block, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + encodeURIComponent(index) + '/' + '_block' + '/' + encodeURIComponent(block)
 
@@ -71,10 +71,10 @@ IndicesApi.prototype.addBlock = function indicesAddBlockApi (params, options, ca
 IndicesApi.prototype.analyze = function indicesAnalyzeApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_analyze'
@@ -97,10 +97,10 @@ IndicesApi.prototype.analyze = function indicesAnalyzeApi (params, options, call
 IndicesApi.prototype.clearCache = function indicesClearCacheApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_cache' + '/' + 'clear'
@@ -124,25 +124,25 @@ IndicesApi.prototype.clone = function indicesCloneApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['target'] == null) {
+  if (params.target == null) {
     const err = new this[kConfigurationError]('Missing required parameter: target')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['target'] != null && (params['index'] == null)) {
+  if (params.target != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, target, ...querystring } = params
+  let { method, body, index, target, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + encodeURIComponent(index) + '/' + '_clone' + '/' + encodeURIComponent(target)
 
@@ -161,15 +161,15 @@ IndicesApi.prototype.close = function indicesCloseApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_close'
 
@@ -188,15 +188,15 @@ IndicesApi.prototype.create = function indicesCreateApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + encodeURIComponent(index)
 
@@ -215,15 +215,15 @@ IndicesApi.prototype.delete = function indicesDeleteApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + encodeURIComponent(index)
 
@@ -242,25 +242,25 @@ IndicesApi.prototype.deleteAlias = function indicesDeleteAliasApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['name'] != null && (params['index'] == null)) {
+  if (params.name != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, name, ...querystring } = params
+  let { method, body, index, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (name) != null) {
     if (method == null) method = 'DELETE'
     path = '/' + encodeURIComponent(index) + '/' + '_alias' + '/' + encodeURIComponent(name)
@@ -284,15 +284,15 @@ IndicesApi.prototype.deleteIndexTemplate = function indicesDeleteIndexTemplateAp
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_index_template' + '/' + encodeURIComponent(name)
 
@@ -311,15 +311,15 @@ IndicesApi.prototype.deleteTemplate = function indicesDeleteTemplateApi (params,
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_template' + '/' + encodeURIComponent(name)
 
@@ -338,15 +338,15 @@ IndicesApi.prototype.exists = function indicesExistsApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'HEAD'
   path = '/' + encodeURIComponent(index)
 
@@ -365,15 +365,15 @@ IndicesApi.prototype.existsAlias = function indicesExistsAliasApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, index, ...querystring } = params
+  let { method, body, name, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (name) != null) {
     if (method == null) method = 'HEAD'
     path = '/' + encodeURIComponent(index) + '/' + '_alias' + '/' + encodeURIComponent(name)
@@ -397,15 +397,15 @@ IndicesApi.prototype.existsIndexTemplate = function indicesExistsIndexTemplateAp
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'HEAD'
   path = '/' + '_index_template' + '/' + encodeURIComponent(name)
 
@@ -424,15 +424,15 @@ IndicesApi.prototype.existsTemplate = function indicesExistsTemplateApi (params,
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'HEAD'
   path = '/' + '_template' + '/' + encodeURIComponent(name)
 
@@ -451,25 +451,25 @@ IndicesApi.prototype.existsType = function indicesExistsTypeApi (params, options
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['type'] == null) {
+  if (params.type == null) {
     const err = new this[kConfigurationError]('Missing required parameter: type')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'HEAD'
   path = '/' + encodeURIComponent(index) + '/' + '_mapping' + '/' + encodeURIComponent(type)
 
@@ -487,10 +487,10 @@ IndicesApi.prototype.existsType = function indicesExistsTypeApi (params, options
 IndicesApi.prototype.flush = function indicesFlushApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_flush'
@@ -513,10 +513,10 @@ IndicesApi.prototype.flush = function indicesFlushApi (params, options, callback
 IndicesApi.prototype.flushSynced = function indicesFlushSyncedApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_flush' + '/' + 'synced'
 
@@ -534,10 +534,10 @@ IndicesApi.prototype.flushSynced = function indicesFlushSyncedApi (params, optio
 IndicesApi.prototype.forcemerge = function indicesForcemergeApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_forcemerge'
@@ -561,15 +561,15 @@ IndicesApi.prototype.get = function indicesGetApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + encodeURIComponent(index)
 
@@ -587,10 +587,10 @@ IndicesApi.prototype.get = function indicesGetApi (params, options, callback) {
 IndicesApi.prototype.getAlias = function indicesGetAliasApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, index, ...querystring } = params
+  let { method, body, name, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (name) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_alias' + '/' + encodeURIComponent(name)
@@ -620,15 +620,15 @@ IndicesApi.prototype.getFieldMapping = function indicesGetFieldMappingApi (param
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['fields'] == null) {
+  if (params.fields == null) {
     const err = new this[kConfigurationError]('Missing required parameter: fields')
     return handleError(err, callback)
   }
 
-  var { method, body, fields, index, type, ...querystring } = params
+  let { method, body, fields, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (fields) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_mapping' + '/' + encodeURIComponent(type) + '/' + 'field' + '/' + encodeURIComponent(fields)
@@ -657,10 +657,10 @@ IndicesApi.prototype.getFieldMapping = function indicesGetFieldMappingApi (param
 IndicesApi.prototype.getIndexTemplate = function indicesGetIndexTemplateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_index_template' + '/' + encodeURIComponent(name)
@@ -683,10 +683,10 @@ IndicesApi.prototype.getIndexTemplate = function indicesGetIndexTemplateApi (par
 IndicesApi.prototype.getMapping = function indicesGetMappingApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_mapping' + '/' + encodeURIComponent(type)
@@ -715,10 +715,10 @@ IndicesApi.prototype.getMapping = function indicesGetMappingApi (params, options
 IndicesApi.prototype.getSettings = function indicesGetSettingsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, name, ...querystring } = params
+  let { method, body, index, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (name) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_settings' + '/' + encodeURIComponent(name)
@@ -747,10 +747,10 @@ IndicesApi.prototype.getSettings = function indicesGetSettingsApi (params, optio
 IndicesApi.prototype.getTemplate = function indicesGetTemplateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_template' + '/' + encodeURIComponent(name)
@@ -773,10 +773,10 @@ IndicesApi.prototype.getTemplate = function indicesGetTemplateApi (params, optio
 IndicesApi.prototype.getUpgrade = function indicesGetUpgradeApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + encodeURIComponent(index) + '/' + '_upgrade'
 
@@ -795,15 +795,15 @@ IndicesApi.prototype.open = function indicesOpenApi (params, options, callback)
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_open'
 
@@ -822,25 +822,25 @@ IndicesApi.prototype.putAlias = function indicesPutAliasApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['name'] != null && (params['index'] == null)) {
+  if (params.name != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, name, ...querystring } = params
+  let { method, body, index, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (name) != null) {
     if (method == null) method = 'PUT'
     path = '/' + encodeURIComponent(index) + '/' + '_alias' + '/' + encodeURIComponent(name)
@@ -864,19 +864,19 @@ IndicesApi.prototype.putIndexTemplate = function indicesPutIndexTemplateApi (par
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_index_template' + '/' + encodeURIComponent(name)
 
@@ -895,15 +895,15 @@ IndicesApi.prototype.putMapping = function indicesPutMappingApi (params, options
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = 'PUT'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_mapping'
@@ -945,15 +945,15 @@ IndicesApi.prototype.putSettings = function indicesPutSettingsApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'PUT'
     path = '/' + encodeURIComponent(index) + '/' + '_settings'
@@ -977,19 +977,19 @@ IndicesApi.prototype.putTemplate = function indicesPutTemplateApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_template' + '/' + encodeURIComponent(name)
 
@@ -1007,10 +1007,10 @@ IndicesApi.prototype.putTemplate = function indicesPutTemplateApi (params, optio
 IndicesApi.prototype.recovery = function indicesRecoveryApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_recovery'
@@ -1033,10 +1033,10 @@ IndicesApi.prototype.recovery = function indicesRecoveryApi (params, options, ca
 IndicesApi.prototype.refresh = function indicesRefreshApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_refresh'
@@ -1060,15 +1060,15 @@ IndicesApi.prototype.resolveIndex = function indicesResolveIndexApi (params, opt
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_resolve' + '/' + 'index' + '/' + encodeURIComponent(name)
 
@@ -1087,21 +1087,21 @@ IndicesApi.prototype.rollover = function indicesRolloverApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['alias'] == null) {
+  if (params.alias == null) {
     const err = new this[kConfigurationError]('Missing required parameter: alias')
     return handleError(err, callback)
   }
 
   // check required url components
-  if ((params['new_index'] != null || params['newIndex'] != null) && (params['alias'] == null)) {
+  if ((params.new_index != null || params.newIndex != null) && (params.alias == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: alias')
     return handleError(err, callback)
   }
 
-  var { method, body, alias, newIndex, new_index, ...querystring } = params
+  let { method, body, alias, newIndex, new_index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((alias) != null && (new_index || newIndex) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(alias) + '/' + '_rollover' + '/' + encodeURIComponent(new_index || newIndex)
@@ -1124,10 +1124,10 @@ IndicesApi.prototype.rollover = function indicesRolloverApi (params, options, ca
 IndicesApi.prototype.segments = function indicesSegmentsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_segments'
@@ -1150,10 +1150,10 @@ IndicesApi.prototype.segments = function indicesSegmentsApi (params, options, ca
 IndicesApi.prototype.shardStores = function indicesShardStoresApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_shard_stores'
@@ -1177,25 +1177,25 @@ IndicesApi.prototype.shrink = function indicesShrinkApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['target'] == null) {
+  if (params.target == null) {
     const err = new this[kConfigurationError]('Missing required parameter: target')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['target'] != null && (params['index'] == null)) {
+  if (params.target != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, target, ...querystring } = params
+  let { method, body, index, target, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + encodeURIComponent(index) + '/' + '_shrink' + '/' + encodeURIComponent(target)
 
@@ -1214,15 +1214,15 @@ IndicesApi.prototype.simulateIndexTemplate = function indicesSimulateIndexTempla
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_index_template' + '/' + '_simulate_index' + '/' + encodeURIComponent(name)
 
@@ -1240,10 +1240,10 @@ IndicesApi.prototype.simulateIndexTemplate = function indicesSimulateIndexTempla
 IndicesApi.prototype.simulateTemplate = function indicesSimulateTemplateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'POST'
     path = '/' + '_index_template' + '/' + '_simulate' + '/' + encodeURIComponent(name)
@@ -1267,25 +1267,25 @@ IndicesApi.prototype.split = function indicesSplitApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['target'] == null) {
+  if (params.target == null) {
     const err = new this[kConfigurationError]('Missing required parameter: target')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['target'] != null && (params['index'] == null)) {
+  if (params.target != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, target, ...querystring } = params
+  let { method, body, index, target, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + encodeURIComponent(index) + '/' + '_split' + '/' + encodeURIComponent(target)
 
@@ -1303,10 +1303,10 @@ IndicesApi.prototype.split = function indicesSplitApi (params, options, callback
 IndicesApi.prototype.stats = function indicesStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, metric, index, ...querystring } = params
+  let { method, body, metric, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (metric) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_stats' + '/' + encodeURIComponent(metric)
@@ -1336,15 +1336,15 @@ IndicesApi.prototype.updateAliases = function indicesUpdateAliasesApi (params, o
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_aliases'
 
@@ -1362,10 +1362,10 @@ IndicesApi.prototype.updateAliases = function indicesUpdateAliasesApi (params, o
 IndicesApi.prototype.upgrade = function indicesUpgradeApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_upgrade'
 
@@ -1384,15 +1384,15 @@ IndicesApi.prototype.validateQuery = function indicesValidateQueryApi (params, o
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_validate' + '/' + 'query'
@@ -1419,15 +1419,15 @@ IndicesApi.prototype.createDataStream = function indicesCreateDataStreamApi (par
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_data_stream' + '/' + encodeURIComponent(name)
 
@@ -1445,10 +1445,10 @@ IndicesApi.prototype.createDataStream = function indicesCreateDataStreamApi (par
 IndicesApi.prototype.dataStreamsStats = function indicesDataStreamsStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_data_stream' + '/' + encodeURIComponent(name) + '/' + '_stats'
@@ -1472,15 +1472,15 @@ IndicesApi.prototype.deleteDataStream = function indicesDeleteDataStreamApi (par
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_data_stream' + '/' + encodeURIComponent(name)
 
@@ -1499,15 +1499,15 @@ IndicesApi.prototype.freeze = function indicesFreezeApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_freeze'
 
@@ -1525,10 +1525,10 @@ IndicesApi.prototype.freeze = function indicesFreezeApi (params, options, callba
 IndicesApi.prototype.getDataStream = function indicesGetDataStreamApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_data_stream' + '/' + encodeURIComponent(name)
@@ -1552,15 +1552,15 @@ IndicesApi.prototype.migrateToDataStream = function indicesMigrateToDataStreamAp
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_data_stream' + '/' + '_migrate' + '/' + encodeURIComponent(name)
 
@@ -1579,15 +1579,15 @@ IndicesApi.prototype.promoteDataStream = function indicesPromoteDataStreamApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_data_stream' + '/' + '_promote' + '/' + encodeURIComponent(name)
 
@@ -1606,15 +1606,15 @@ IndicesApi.prototype.reloadSearchAnalyzers = function indicesReloadSearchAnalyze
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_reload_search_analyzers'
 
@@ -1633,15 +1633,15 @@ IndicesApi.prototype.unfreeze = function indicesUnfreezeApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_unfreeze'
 

api/api/info.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function infoApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/'
 

api/api/ingest.js

@@ -35,15 +35,15 @@ IngestApi.prototype.deletePipeline = function ingestDeletePipelineApi (params, o
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_ingest' + '/' + 'pipeline' + '/' + encodeURIComponent(id)
 
@@ -61,10 +61,10 @@ IngestApi.prototype.deletePipeline = function ingestDeletePipelineApi (params, o
 IngestApi.prototype.getPipeline = function ingestGetPipelineApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_ingest' + '/' + 'pipeline' + '/' + encodeURIComponent(id)
@@ -87,10 +87,10 @@ IngestApi.prototype.getPipeline = function ingestGetPipelineApi (params, options
 IngestApi.prototype.processorGrok = function ingestProcessorGrokApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_ingest' + '/' + 'processor' + '/' + 'grok'
 
@@ -109,19 +109,19 @@ IngestApi.prototype.putPipeline = function ingestPutPipelineApi (params, options
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_ingest' + '/' + 'pipeline' + '/' + encodeURIComponent(id)
 
@@ -140,15 +140,15 @@ IngestApi.prototype.simulate = function ingestSimulateApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + '_ingest' + '/' + 'pipeline' + '/' + encodeURIComponent(id) + '/' + '_simulate'

api/api/license.js

@@ -34,10 +34,10 @@ function LicenseApi (transport, ConfigurationError) {
 LicenseApi.prototype.delete = function licenseDeleteApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_license'
 
@@ -55,10 +55,10 @@ LicenseApi.prototype.delete = function licenseDeleteApi (params, options, callba
 LicenseApi.prototype.get = function licenseGetApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_license'
 
@@ -76,10 +76,10 @@ LicenseApi.prototype.get = function licenseGetApi (params, options, callback) {
 LicenseApi.prototype.getBasicStatus = function licenseGetBasicStatusApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_license' + '/' + 'basic_status'
 
@@ -97,10 +97,10 @@ LicenseApi.prototype.getBasicStatus = function licenseGetBasicStatusApi (params,
 LicenseApi.prototype.getTrialStatus = function licenseGetTrialStatusApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_license' + '/' + 'trial_status'
 
@@ -118,10 +118,10 @@ LicenseApi.prototype.getTrialStatus = function licenseGetTrialStatusApi (params,
 LicenseApi.prototype.post = function licensePostApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_license'
 
@@ -139,10 +139,10 @@ LicenseApi.prototype.post = function licensePostApi (params, options, callback)
 LicenseApi.prototype.postStartBasic = function licensePostStartBasicApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_license' + '/' + 'start_basic'
 
@@ -160,10 +160,10 @@ LicenseApi.prototype.postStartBasic = function licensePostStartBasicApi (params,
 LicenseApi.prototype.postStartTrial = function licensePostStartTrialApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_license' + '/' + 'start_trial'
 

api/api/logstash.js

@@ -0,0 +1,125 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+const { handleError, snakeCaseKeys, normalizeArguments, kConfigurationError } = require('../utils')
+const acceptedQuerystring = ['pretty', 'human', 'error_trace', 'source', 'filter_path']
+const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
+
+function LogstashApi (transport, ConfigurationError) {
+  this.transport = transport
+  this[kConfigurationError] = ConfigurationError
+}
+
+LogstashApi.prototype.deletePipeline = function logstashDeletePipelineApi (params, options, callback) {
+  ;[params, options, callback] = normalizeArguments(params, options, callback)
+
+  // check required parameters
+  if (params.id == null) {
+    const err = new this[kConfigurationError]('Missing required parameter: id')
+    return handleError(err, callback)
+  }
+
+  let { method, body, id, ...querystring } = params
+  querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
+
+  let path = ''
+  if (method == null) method = 'DELETE'
+  path = '/' + '_logstash' + '/' + 'pipeline' + '/' + encodeURIComponent(id)
+
+  // build request object
+  const request = {
+    method,
+    path,
+    body: body || '',
+    querystring
+  }
+
+  return this.transport.request(request, options, callback)
+}
+
+LogstashApi.prototype.getPipeline = function logstashGetPipelineApi (params, options, callback) {
+  ;[params, options, callback] = normalizeArguments(params, options, callback)
+
+  // check required parameters
+  if (params.id == null) {
+    const err = new this[kConfigurationError]('Missing required parameter: id')
+    return handleError(err, callback)
+  }
+
+  let { method, body, id, ...querystring } = params
+  querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
+
+  let path = ''
+  if (method == null) method = 'GET'
+  path = '/' + '_logstash' + '/' + 'pipeline' + '/' + encodeURIComponent(id)
+
+  // build request object
+  const request = {
+    method,
+    path,
+    body: null,
+    querystring
+  }
+
+  return this.transport.request(request, options, callback)
+}
+
+LogstashApi.prototype.putPipeline = function logstashPutPipelineApi (params, options, callback) {
+  ;[params, options, callback] = normalizeArguments(params, options, callback)
+
+  // check required parameters
+  if (params.id == null) {
+    const err = new this[kConfigurationError]('Missing required parameter: id')
+    return handleError(err, callback)
+  }
+  if (params.body == null) {
+    const err = new this[kConfigurationError]('Missing required parameter: body')
+    return handleError(err, callback)
+  }
+
+  let { method, body, id, ...querystring } = params
+  querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
+
+  let path = ''
+  if (method == null) method = 'PUT'
+  path = '/' + '_logstash' + '/' + 'pipeline' + '/' + encodeURIComponent(id)
+
+  // build request object
+  const request = {
+    method,
+    path,
+    body: body || '',
+    querystring
+  }
+
+  return this.transport.request(request, options, callback)
+}
+
+Object.defineProperties(LogstashApi.prototype, {
+  delete_pipeline: { get () { return this.deletePipeline } },
+  get_pipeline: { get () { return this.getPipeline } },
+  put_pipeline: { get () { return this.putPipeline } }
+})
+
+module.exports = LogstashApi

api/api/mget.js

@@ -30,21 +30,21 @@ function mgetApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_mget'

api/api/migration.js

@@ -34,10 +34,10 @@ function MigrationApi (transport, ConfigurationError) {
 MigrationApi.prototype.deprecations = function migrationDeprecationsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_migration' + '/' + 'deprecations'

api/api/monitoring.js

@@ -35,15 +35,15 @@ MonitoringApi.prototype.bulk = function monitoringBulkApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, type, ...querystring } = params
+  let { method, body, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((type) != null) {
     if (method == null) method = 'POST'
     path = '/' + '_monitoring' + '/' + encodeURIComponent(type) + '/' + 'bulk'

api/api/msearch.js

@@ -30,21 +30,21 @@ function msearchApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_msearch'

api/api/msearch_template.js

@@ -30,21 +30,21 @@ function msearchTemplateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_msearch' + '/' + 'template'

api/api/mtermvectors.js

@@ -30,15 +30,15 @@ function mtermvectorsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_mtermvectors'

api/api/nodes.js

@@ -34,10 +34,10 @@ function NodesApi (transport, ConfigurationError) {
 NodesApi.prototype.hotThreads = function nodesHotThreadsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, nodeId, node_id, ...querystring } = params
+  let { method, body, nodeId, node_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((node_id || nodeId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_nodes' + '/' + encodeURIComponent(node_id || nodeId) + '/' + 'hot_threads'
@@ -69,10 +69,10 @@ NodesApi.prototype.hotThreads = function nodesHotThreadsApi (params, options, ca
 NodesApi.prototype.info = function nodesInfoApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, nodeId, node_id, metric, ...querystring } = params
+  let { method, body, nodeId, node_id, metric, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((node_id || nodeId) != null && (metric) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_nodes' + '/' + encodeURIComponent(node_id || nodeId) + '/' + encodeURIComponent(metric)
@@ -101,10 +101,10 @@ NodesApi.prototype.info = function nodesInfoApi (params, options, callback) {
 NodesApi.prototype.reloadSecureSettings = function nodesReloadSecureSettingsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, nodeId, node_id, ...querystring } = params
+  let { method, body, nodeId, node_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((node_id || nodeId) != null) {
     if (method == null) method = 'POST'
     path = '/' + '_nodes' + '/' + encodeURIComponent(node_id || nodeId) + '/' + 'reload_secure_settings'
@@ -127,10 +127,10 @@ NodesApi.prototype.reloadSecureSettings = function nodesReloadSecureSettingsApi
 NodesApi.prototype.stats = function nodesStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, nodeId, node_id, metric, indexMetric, index_metric, ...querystring } = params
+  let { method, body, nodeId, node_id, metric, indexMetric, index_metric, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((node_id || nodeId) != null && (metric) != null && (index_metric || indexMetric) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_nodes' + '/' + encodeURIComponent(node_id || nodeId) + '/' + 'stats' + '/' + encodeURIComponent(metric) + '/' + encodeURIComponent(index_metric || indexMetric)
@@ -165,10 +165,10 @@ NodesApi.prototype.stats = function nodesStatsApi (params, options, callback) {
 NodesApi.prototype.usage = function nodesUsageApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, nodeId, node_id, metric, ...querystring } = params
+  let { method, body, nodeId, node_id, metric, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((node_id || nodeId) != null && (metric) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_nodes' + '/' + encodeURIComponent(node_id || nodeId) + '/' + 'usage' + '/' + encodeURIComponent(metric)

api/api/open_point_in_time.js

@@ -29,10 +29,10 @@ const snakeCase = { ignoreUnavailable: 'ignore_unavailable', expandWildcards: 'e
 function openPointInTimeApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_pit'

api/api/ping.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function pingApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'HEAD'
   path = '/'
 

api/api/put_script.js

@@ -30,25 +30,25 @@ function putScriptApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['context'] != null && (params['id'] == null)) {
+  if (params.context != null && (params.id == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, context, ...querystring } = params
+  let { method, body, id, context, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null && (context) != null) {
     if (method == null) method = 'PUT'
     path = '/' + '_scripts' + '/' + encodeURIComponent(id) + '/' + encodeURIComponent(context)

api/api/rank_eval.js

@@ -30,15 +30,15 @@ function rankEvalApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_rank_eval'

api/api/reindex.js

@@ -30,15 +30,15 @@ function reindexApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_reindex'
 

api/api/reindex_rethrottle.js

@@ -30,19 +30,19 @@ function reindexRethrottleApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['task_id'] == null && params['taskId'] == null) {
+  if (params.task_id == null && params.taskId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: task_id or taskId')
     return handleError(err, callback)
   }
-  if (params['requests_per_second'] == null && params['requestsPerSecond'] == null) {
+  if (params.requests_per_second == null && params.requestsPerSecond == null) {
     const err = new this[kConfigurationError]('Missing required parameter: requests_per_second or requestsPerSecond')
     return handleError(err, callback)
   }
 
-  var { method, body, taskId, task_id, ...querystring } = params
+  let { method, body, taskId, task_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_reindex' + '/' + encodeURIComponent(task_id || taskId) + '/' + '_rethrottle'
 

api/api/render_search_template.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function renderSearchTemplateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + '_render' + '/' + 'template' + '/' + encodeURIComponent(id)

api/api/rollup.js

@@ -35,15 +35,15 @@ RollupApi.prototype.deleteJob = function rollupDeleteJobApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_rollup' + '/' + 'job' + '/' + encodeURIComponent(id)
 
@@ -61,10 +61,10 @@ RollupApi.prototype.deleteJob = function rollupDeleteJobApi (params, options, ca
 RollupApi.prototype.getJobs = function rollupGetJobsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_rollup' + '/' + 'job' + '/' + encodeURIComponent(id)
@@ -87,10 +87,10 @@ RollupApi.prototype.getJobs = function rollupGetJobsApi (params, options, callba
 RollupApi.prototype.getRollupCaps = function rollupGetRollupCapsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_rollup' + '/' + 'data' + '/' + encodeURIComponent(id)
@@ -114,15 +114,15 @@ RollupApi.prototype.getRollupIndexCaps = function rollupGetRollupIndexCapsApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + encodeURIComponent(index) + '/' + '_rollup' + '/' + 'data'
 
@@ -141,19 +141,19 @@ RollupApi.prototype.putJob = function rollupPutJobApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_rollup' + '/' + 'job' + '/' + encodeURIComponent(id)
 
@@ -172,29 +172,29 @@ RollupApi.prototype.rollup = function rollupRollupApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['rollup_index'] == null && params['rollupIndex'] == null) {
+  if (params.rollup_index == null && params.rollupIndex == null) {
     const err = new this[kConfigurationError]('Missing required parameter: rollup_index or rollupIndex')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if ((params['rollup_index'] != null || params['rollupIndex'] != null) && (params['index'] == null)) {
+  if ((params.rollup_index != null || params.rollupIndex != null) && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, rollupIndex, rollup_index, ...querystring } = params
+  let { method, body, index, rollupIndex, rollup_index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + encodeURIComponent(index) + '/' + '_rollup' + '/' + encodeURIComponent(rollup_index || rollupIndex)
 
@@ -213,25 +213,25 @@ RollupApi.prototype.rollupSearch = function rollupRollupSearchApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_rollup_search'
@@ -255,15 +255,15 @@ RollupApi.prototype.startJob = function rollupStartJobApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_rollup' + '/' + 'job' + '/' + encodeURIComponent(id) + '/' + '_start'
 
@@ -282,15 +282,15 @@ RollupApi.prototype.stopJob = function rollupStopJobApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_rollup' + '/' + 'job' + '/' + encodeURIComponent(id) + '/' + '_stop'
 

api/api/scripts_painless_execute.js

@@ -29,10 +29,10 @@ const snakeCase = { errorTrace: 'error_trace', filterPath: 'filter_path' }
 function scriptsPainlessExecuteApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + '_scripts' + '/' + 'painless' + '/' + '_execute'
 

api/api/scroll.js

@@ -29,10 +29,10 @@ const snakeCase = { scrollId: 'scroll_id', restTotalHitsAsInt: 'rest_total_hits_
 function scrollApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, scrollId, scroll_id, ...querystring } = params
+  let { method, body, scrollId, scroll_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((scroll_id || scrollId) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + '_search' + '/' + 'scroll' + '/' + encodeURIComponent(scroll_id || scrollId)

api/api/search.js

@@ -23,22 +23,22 @@
 /* eslint no-unused-vars: 0 */
 
 const { handleError, snakeCaseKeys, normalizeArguments, kConfigurationError } = require('../utils')
-const acceptedQuerystring = ['analyzer', 'analyze_wildcard', 'ccs_minimize_roundtrips', 'default_operator', 'df', 'explain', 'stored_fields', 'docvalue_fields', 'from', 'ignore_unavailable', 'ignore_throttled', 'allow_no_indices', 'expand_wildcards', 'lenient', 'preference', 'q', 'routing', 'scroll', 'search_type', 'size', 'sort', '_source', '_source_excludes', '_source_exclude', '_source_includes', '_source_include', 'terminate_after', 'stats', 'suggest_field', 'suggest_mode', 'suggest_size', 'suggest_text', 'timeout', 'track_scores', 'track_total_hits', 'allow_partial_search_results', 'typed_keys', 'version', 'seq_no_primary_term', 'request_cache', 'batched_reduce_size', 'max_concurrent_shard_requests', 'pre_filter_shard_size', 'rest_total_hits_as_int', 'pretty', 'human', 'error_trace', 'source', 'filter_path']
-const snakeCase = { analyzeWildcard: 'analyze_wildcard', ccsMinimizeRoundtrips: 'ccs_minimize_roundtrips', defaultOperator: 'default_operator', storedFields: 'stored_fields', docvalueFields: 'docvalue_fields', ignoreUnavailable: 'ignore_unavailable', ignoreThrottled: 'ignore_throttled', allowNoIndices: 'allow_no_indices', expandWildcards: 'expand_wildcards', searchType: 'search_type', _sourceExcludes: '_source_excludes', _sourceExclude: '_source_exclude', _sourceIncludes: '_source_includes', _sourceInclude: '_source_include', terminateAfter: 'terminate_after', suggestField: 'suggest_field', suggestMode: 'suggest_mode', suggestSize: 'suggest_size', suggestText: 'suggest_text', trackScores: 'track_scores', trackTotalHits: 'track_total_hits', allowPartialSearchResults: 'allow_partial_search_results', typedKeys: 'typed_keys', seqNoPrimaryTerm: 'seq_no_primary_term', requestCache: 'request_cache', batchedReduceSize: 'batched_reduce_size', maxConcurrentShardRequests: 'max_concurrent_shard_requests', preFilterShardSize: 'pre_filter_shard_size', restTotalHitsAsInt: 'rest_total_hits_as_int', errorTrace: 'error_trace', filterPath: 'filter_path' }
+const acceptedQuerystring = ['analyzer', 'analyze_wildcard', 'ccs_minimize_roundtrips', 'default_operator', 'df', 'explain', 'stored_fields', 'docvalue_fields', 'from', 'ignore_unavailable', 'ignore_throttled', 'allow_no_indices', 'expand_wildcards', 'lenient', 'preference', 'q', 'routing', 'scroll', 'search_type', 'size', 'sort', '_source', '_source_excludes', '_source_exclude', '_source_includes', '_source_include', 'terminate_after', 'stats', 'suggest_field', 'suggest_mode', 'suggest_size', 'suggest_text', 'timeout', 'track_scores', 'track_total_hits', 'allow_partial_search_results', 'typed_keys', 'version', 'seq_no_primary_term', 'request_cache', 'batched_reduce_size', 'max_concurrent_shard_requests', 'pre_filter_shard_size', 'rest_total_hits_as_int', 'min_compatible_shard_node', 'pretty', 'human', 'error_trace', 'source', 'filter_path']
+const snakeCase = { analyzeWildcard: 'analyze_wildcard', ccsMinimizeRoundtrips: 'ccs_minimize_roundtrips', defaultOperator: 'default_operator', storedFields: 'stored_fields', docvalueFields: 'docvalue_fields', ignoreUnavailable: 'ignore_unavailable', ignoreThrottled: 'ignore_throttled', allowNoIndices: 'allow_no_indices', expandWildcards: 'expand_wildcards', searchType: 'search_type', _sourceExcludes: '_source_excludes', _sourceExclude: '_source_exclude', _sourceIncludes: '_source_includes', _sourceInclude: '_source_include', terminateAfter: 'terminate_after', suggestField: 'suggest_field', suggestMode: 'suggest_mode', suggestSize: 'suggest_size', suggestText: 'suggest_text', trackScores: 'track_scores', trackTotalHits: 'track_total_hits', allowPartialSearchResults: 'allow_partial_search_results', typedKeys: 'typed_keys', seqNoPrimaryTerm: 'seq_no_primary_term', requestCache: 'request_cache', batchedReduceSize: 'batched_reduce_size', maxConcurrentShardRequests: 'max_concurrent_shard_requests', preFilterShardSize: 'pre_filter_shard_size', restTotalHitsAsInt: 'rest_total_hits_as_int', minCompatibleShardNode: 'min_compatible_shard_node', errorTrace: 'error_trace', filterPath: 'filter_path' }
 
 function searchApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_search'

api/api/search_shards.js

@@ -29,10 +29,10 @@ const snakeCase = { ignoreUnavailable: 'ignore_unavailable', allowNoIndices: 'al
 function searchShardsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_search_shards'

api/api/search_template.js

@@ -30,21 +30,21 @@ function searchTemplateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_search' + '/' + 'template'

api/api/searchable_snapshots.js

@@ -23,7 +23,7 @@
 /* eslint no-unused-vars: 0 */
 
 const { handleError, snakeCaseKeys, normalizeArguments, kConfigurationError } = require('../utils')
-const acceptedQuerystring = ['ignore_unavailable', 'allow_no_indices', 'expand_wildcards', 'index', 'pretty', 'human', 'error_trace', 'source', 'filter_path', 'master_timeout', 'wait_for_completion']
+const acceptedQuerystring = ['ignore_unavailable', 'allow_no_indices', 'expand_wildcards', 'index', 'pretty', 'human', 'error_trace', 'source', 'filter_path', 'master_timeout', 'wait_for_completion', 'storage', 'level']
 const snakeCase = { ignoreUnavailable: 'ignore_unavailable', allowNoIndices: 'allow_no_indices', expandWildcards: 'expand_wildcards', errorTrace: 'error_trace', filterPath: 'filter_path', masterTimeout: 'master_timeout', waitForCompletion: 'wait_for_completion' }
 
 function SearchableSnapshotsApi (transport, ConfigurationError) {
@@ -34,10 +34,10 @@ function SearchableSnapshotsApi (transport, ConfigurationError) {
 SearchableSnapshotsApi.prototype.clearCache = function searchableSnapshotsClearCacheApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + '_searchable_snapshots' + '/' + 'cache' + '/' + 'clear'
@@ -61,29 +61,29 @@ SearchableSnapshotsApi.prototype.mount = function searchableSnapshotsMountApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
-  if (params['snapshot'] == null) {
+  if (params.snapshot == null) {
     const err = new this[kConfigurationError]('Missing required parameter: snapshot')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['snapshot'] != null && (params['repository'] == null)) {
+  if (params.snapshot != null && (params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, snapshot, ...querystring } = params
+  let { method, body, repository, snapshot, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + encodeURIComponent(snapshot) + '/' + '_mount'
 
@@ -102,15 +102,15 @@ SearchableSnapshotsApi.prototype.repositoryStats = function searchableSnapshotsR
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, ...querystring } = params
+  let { method, body, repository, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + '_stats'
 
@@ -128,10 +128,10 @@ SearchableSnapshotsApi.prototype.repositoryStats = function searchableSnapshotsR
 SearchableSnapshotsApi.prototype.stats = function searchableSnapshotsStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, index, ...querystring } = params
+  let { method, body, index, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null) {
     if (method == null) method = 'GET'
     path = '/' + encodeURIComponent(index) + '/' + '_searchable_snapshots' + '/' + 'stats'

api/api/security.js

@@ -34,10 +34,10 @@ function SecurityApi (transport, ConfigurationError) {
 SecurityApi.prototype.authenticate = function securityAuthenticateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_security' + '/' + '_authenticate'
 
@@ -56,15 +56,15 @@ SecurityApi.prototype.changePassword = function securityChangePasswordApi (param
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, username, ...querystring } = params
+  let { method, body, username, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((username) != null) {
     if (method == null) method = 'PUT'
     path = '/' + '_security' + '/' + 'user' + '/' + encodeURIComponent(username) + '/' + '_password'
@@ -88,15 +88,15 @@ SecurityApi.prototype.clearApiKeyCache = function securityClearApiKeyCacheApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['ids'] == null) {
+  if (params.ids == null) {
     const err = new this[kConfigurationError]('Missing required parameter: ids')
     return handleError(err, callback)
   }
 
-  var { method, body, ids, ...querystring } = params
+  let { method, body, ids, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_security' + '/' + 'api_key' + '/' + encodeURIComponent(ids) + '/' + '_clear_cache'
 
@@ -115,15 +115,15 @@ SecurityApi.prototype.clearCachedPrivileges = function securityClearCachedPrivil
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['application'] == null) {
+  if (params.application == null) {
     const err = new this[kConfigurationError]('Missing required parameter: application')
     return handleError(err, callback)
   }
 
-  var { method, body, application, ...querystring } = params
+  let { method, body, application, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_security' + '/' + 'privilege' + '/' + encodeURIComponent(application) + '/' + '_clear_cache'
 
@@ -142,15 +142,15 @@ SecurityApi.prototype.clearCachedRealms = function securityClearCachedRealmsApi
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['realms'] == null) {
+  if (params.realms == null) {
     const err = new this[kConfigurationError]('Missing required parameter: realms')
     return handleError(err, callback)
   }
 
-  var { method, body, realms, ...querystring } = params
+  let { method, body, realms, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_security' + '/' + 'realm' + '/' + encodeURIComponent(realms) + '/' + '_clear_cache'
 
@@ -169,15 +169,15 @@ SecurityApi.prototype.clearCachedRoles = function securityClearCachedRolesApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_security' + '/' + 'role' + '/' + encodeURIComponent(name) + '/' + '_clear_cache'
 
@@ -196,15 +196,15 @@ SecurityApi.prototype.createApiKey = function securityCreateApiKeyApi (params, o
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_security' + '/' + 'api_key'
 
@@ -223,25 +223,25 @@ SecurityApi.prototype.deletePrivileges = function securityDeletePrivilegesApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['application'] == null) {
+  if (params.application == null) {
     const err = new this[kConfigurationError]('Missing required parameter: application')
     return handleError(err, callback)
   }
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['name'] != null && (params['application'] == null)) {
+  if (params.name != null && (params.application == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: application')
     return handleError(err, callback)
   }
 
-  var { method, body, application, name, ...querystring } = params
+  let { method, body, application, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_security' + '/' + 'privilege' + '/' + encodeURIComponent(application) + '/' + encodeURIComponent(name)
 
@@ -260,15 +260,15 @@ SecurityApi.prototype.deleteRole = function securityDeleteRoleApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_security' + '/' + 'role' + '/' + encodeURIComponent(name)
 
@@ -287,15 +287,15 @@ SecurityApi.prototype.deleteRoleMapping = function securityDeleteRoleMappingApi
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_security' + '/' + 'role_mapping' + '/' + encodeURIComponent(name)
 
@@ -314,15 +314,15 @@ SecurityApi.prototype.deleteUser = function securityDeleteUserApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['username'] == null) {
+  if (params.username == null) {
     const err = new this[kConfigurationError]('Missing required parameter: username')
     return handleError(err, callback)
   }
 
-  var { method, body, username, ...querystring } = params
+  let { method, body, username, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_security' + '/' + 'user' + '/' + encodeURIComponent(username)
 
@@ -341,15 +341,15 @@ SecurityApi.prototype.disableUser = function securityDisableUserApi (params, opt
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['username'] == null) {
+  if (params.username == null) {
     const err = new this[kConfigurationError]('Missing required parameter: username')
     return handleError(err, callback)
   }
 
-  var { method, body, username, ...querystring } = params
+  let { method, body, username, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_security' + '/' + 'user' + '/' + encodeURIComponent(username) + '/' + '_disable'
 
@@ -368,15 +368,15 @@ SecurityApi.prototype.enableUser = function securityEnableUserApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['username'] == null) {
+  if (params.username == null) {
     const err = new this[kConfigurationError]('Missing required parameter: username')
     return handleError(err, callback)
   }
 
-  var { method, body, username, ...querystring } = params
+  let { method, body, username, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_security' + '/' + 'user' + '/' + encodeURIComponent(username) + '/' + '_enable'
 
@@ -394,10 +394,10 @@ SecurityApi.prototype.enableUser = function securityEnableUserApi (params, optio
 SecurityApi.prototype.getApiKey = function securityGetApiKeyApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_security' + '/' + 'api_key'
 
@@ -415,10 +415,10 @@ SecurityApi.prototype.getApiKey = function securityGetApiKeyApi (params, options
 SecurityApi.prototype.getBuiltinPrivileges = function securityGetBuiltinPrivilegesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_security' + '/' + 'privilege' + '/' + '_builtin'
 
@@ -437,15 +437,15 @@ SecurityApi.prototype.getPrivileges = function securityGetPrivilegesApi (params,
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required url components
-  if (params['name'] != null && (params['application'] == null)) {
+  if (params.name != null && (params.application == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: application')
     return handleError(err, callback)
   }
 
-  var { method, body, application, name, ...querystring } = params
+  let { method, body, application, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((application) != null && (name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_security' + '/' + 'privilege' + '/' + encodeURIComponent(application) + '/' + encodeURIComponent(name)
@@ -471,10 +471,10 @@ SecurityApi.prototype.getPrivileges = function securityGetPrivilegesApi (params,
 SecurityApi.prototype.getRole = function securityGetRoleApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_security' + '/' + 'role' + '/' + encodeURIComponent(name)
@@ -497,10 +497,10 @@ SecurityApi.prototype.getRole = function securityGetRoleApi (params, options, ca
 SecurityApi.prototype.getRoleMapping = function securityGetRoleMappingApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((name) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_security' + '/' + 'role_mapping' + '/' + encodeURIComponent(name)
@@ -524,15 +524,15 @@ SecurityApi.prototype.getToken = function securityGetTokenApi (params, options,
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_security' + '/' + 'oauth2' + '/' + 'token'
 
@@ -550,10 +550,10 @@ SecurityApi.prototype.getToken = function securityGetTokenApi (params, options,
 SecurityApi.prototype.getUser = function securityGetUserApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, username, ...querystring } = params
+  let { method, body, username, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((username) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_security' + '/' + 'user' + '/' + encodeURIComponent(username)
@@ -576,10 +576,10 @@ SecurityApi.prototype.getUser = function securityGetUserApi (params, options, ca
 SecurityApi.prototype.getUserPrivileges = function securityGetUserPrivilegesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_security' + '/' + 'user' + '/' + '_privileges'
 
@@ -598,15 +598,15 @@ SecurityApi.prototype.grantApiKey = function securityGrantApiKeyApi (params, opt
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_security' + '/' + 'api_key' + '/' + 'grant'
 
@@ -625,15 +625,15 @@ SecurityApi.prototype.hasPrivileges = function securityHasPrivilegesApi (params,
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, user, ...querystring } = params
+  let { method, body, user, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((user) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + '_security' + '/' + 'user' + '/' + encodeURIComponent(user) + '/' + '_has_privileges'
@@ -657,15 +657,15 @@ SecurityApi.prototype.invalidateApiKey = function securityInvalidateApiKeyApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_security' + '/' + 'api_key'
 
@@ -684,15 +684,15 @@ SecurityApi.prototype.invalidateToken = function securityInvalidateTokenApi (par
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_security' + '/' + 'oauth2' + '/' + 'token'
 
@@ -711,15 +711,15 @@ SecurityApi.prototype.putPrivileges = function securityPutPrivilegesApi (params,
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_security' + '/' + 'privilege'
 
@@ -738,19 +738,19 @@ SecurityApi.prototype.putRole = function securityPutRoleApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_security' + '/' + 'role' + '/' + encodeURIComponent(name)
 
@@ -769,19 +769,19 @@ SecurityApi.prototype.putRoleMapping = function securityPutRoleMappingApi (param
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['name'] == null) {
+  if (params.name == null) {
     const err = new this[kConfigurationError]('Missing required parameter: name')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, name, ...querystring } = params
+  let { method, body, name, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_security' + '/' + 'role_mapping' + '/' + encodeURIComponent(name)
 
@@ -800,19 +800,19 @@ SecurityApi.prototype.putUser = function securityPutUserApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['username'] == null) {
+  if (params.username == null) {
     const err = new this[kConfigurationError]('Missing required parameter: username')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, username, ...querystring } = params
+  let { method, body, username, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_security' + '/' + 'user' + '/' + encodeURIComponent(username)
 

api/api/slm.js

@@ -35,15 +35,15 @@ SlmApi.prototype.deleteLifecycle = function slmDeleteLifecycleApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['policy_id'] == null && params['policyId'] == null) {
+  if (params.policy_id == null && params.policyId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: policy_id or policyId')
     return handleError(err, callback)
   }
 
-  var { method, body, policyId, policy_id, ...querystring } = params
+  let { method, body, policyId, policy_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_slm' + '/' + 'policy' + '/' + encodeURIComponent(policy_id || policyId)
 
@@ -62,15 +62,15 @@ SlmApi.prototype.executeLifecycle = function slmExecuteLifecycleApi (params, opt
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['policy_id'] == null && params['policyId'] == null) {
+  if (params.policy_id == null && params.policyId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: policy_id or policyId')
     return handleError(err, callback)
   }
 
-  var { method, body, policyId, policy_id, ...querystring } = params
+  let { method, body, policyId, policy_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_slm' + '/' + 'policy' + '/' + encodeURIComponent(policy_id || policyId) + '/' + '_execute'
 
@@ -88,10 +88,10 @@ SlmApi.prototype.executeLifecycle = function slmExecuteLifecycleApi (params, opt
 SlmApi.prototype.executeRetention = function slmExecuteRetentionApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_slm' + '/' + '_execute_retention'
 
@@ -109,10 +109,10 @@ SlmApi.prototype.executeRetention = function slmExecuteRetentionApi (params, opt
 SlmApi.prototype.getLifecycle = function slmGetLifecycleApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, policyId, policy_id, ...querystring } = params
+  let { method, body, policyId, policy_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((policy_id || policyId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_slm' + '/' + 'policy' + '/' + encodeURIComponent(policy_id || policyId)
@@ -135,10 +135,10 @@ SlmApi.prototype.getLifecycle = function slmGetLifecycleApi (params, options, ca
 SlmApi.prototype.getStats = function slmGetStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_slm' + '/' + 'stats'
 
@@ -156,10 +156,10 @@ SlmApi.prototype.getStats = function slmGetStatsApi (params, options, callback)
 SlmApi.prototype.getStatus = function slmGetStatusApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_slm' + '/' + 'status'
 
@@ -178,15 +178,15 @@ SlmApi.prototype.putLifecycle = function slmPutLifecycleApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['policy_id'] == null && params['policyId'] == null) {
+  if (params.policy_id == null && params.policyId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: policy_id or policyId')
     return handleError(err, callback)
   }
 
-  var { method, body, policyId, policy_id, ...querystring } = params
+  let { method, body, policyId, policy_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_slm' + '/' + 'policy' + '/' + encodeURIComponent(policy_id || policyId)
 
@@ -204,10 +204,10 @@ SlmApi.prototype.putLifecycle = function slmPutLifecycleApi (params, options, ca
 SlmApi.prototype.start = function slmStartApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_slm' + '/' + 'start'
 
@@ -225,10 +225,10 @@ SlmApi.prototype.start = function slmStartApi (params, options, callback) {
 SlmApi.prototype.stop = function slmStopApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_slm' + '/' + 'stop'
 

api/api/snapshot.js

@@ -35,15 +35,15 @@ SnapshotApi.prototype.cleanupRepository = function snapshotCleanupRepositoryApi
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, ...querystring } = params
+  let { method, body, repository, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + '_cleanup'
 
@@ -62,36 +62,36 @@ SnapshotApi.prototype.clone = function snapshotCloneApi (params, options, callba
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
-  if (params['snapshot'] == null) {
+  if (params.snapshot == null) {
     const err = new this[kConfigurationError]('Missing required parameter: snapshot')
     return handleError(err, callback)
   }
-  if (params['target_snapshot'] == null && params['targetSnapshot'] == null) {
+  if (params.target_snapshot == null && params.targetSnapshot == null) {
     const err = new this[kConfigurationError]('Missing required parameter: target_snapshot or targetSnapshot')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
   // check required url components
-  if ((params['target_snapshot'] != null || params['targetSnapshot'] != null) && (params['snapshot'] == null || params['repository'] == null)) {
+  if ((params.target_snapshot != null || params.targetSnapshot != null) && (params.snapshot == null || params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: snapshot, repository')
     return handleError(err, callback)
-  } else if (params['snapshot'] != null && (params['repository'] == null)) {
+  } else if (params.snapshot != null && (params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, snapshot, targetSnapshot, target_snapshot, ...querystring } = params
+  let { method, body, repository, snapshot, targetSnapshot, target_snapshot, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + encodeURIComponent(snapshot) + '/' + '_clone' + '/' + encodeURIComponent(target_snapshot || targetSnapshot)
 
@@ -110,25 +110,25 @@ SnapshotApi.prototype.create = function snapshotCreateApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
-  if (params['snapshot'] == null) {
+  if (params.snapshot == null) {
     const err = new this[kConfigurationError]('Missing required parameter: snapshot')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['snapshot'] != null && (params['repository'] == null)) {
+  if (params.snapshot != null && (params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, snapshot, ...querystring } = params
+  let { method, body, repository, snapshot, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + encodeURIComponent(snapshot)
 
@@ -147,19 +147,19 @@ SnapshotApi.prototype.createRepository = function snapshotCreateRepositoryApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, ...querystring } = params
+  let { method, body, repository, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository)
 
@@ -178,25 +178,25 @@ SnapshotApi.prototype.delete = function snapshotDeleteApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
-  if (params['snapshot'] == null) {
+  if (params.snapshot == null) {
     const err = new this[kConfigurationError]('Missing required parameter: snapshot')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['snapshot'] != null && (params['repository'] == null)) {
+  if (params.snapshot != null && (params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, snapshot, ...querystring } = params
+  let { method, body, repository, snapshot, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + encodeURIComponent(snapshot)
 
@@ -215,15 +215,15 @@ SnapshotApi.prototype.deleteRepository = function snapshotDeleteRepositoryApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, ...querystring } = params
+  let { method, body, repository, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository)
 
@@ -242,25 +242,25 @@ SnapshotApi.prototype.get = function snapshotGetApi (params, options, callback)
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
-  if (params['snapshot'] == null) {
+  if (params.snapshot == null) {
     const err = new this[kConfigurationError]('Missing required parameter: snapshot')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['snapshot'] != null && (params['repository'] == null)) {
+  if (params.snapshot != null && (params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, snapshot, ...querystring } = params
+  let { method, body, repository, snapshot, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + encodeURIComponent(snapshot)
 
@@ -278,10 +278,10 @@ SnapshotApi.prototype.get = function snapshotGetApi (params, options, callback)
 SnapshotApi.prototype.getRepository = function snapshotGetRepositoryApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, repository, ...querystring } = params
+  let { method, body, repository, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((repository) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_snapshot' + '/' + encodeURIComponent(repository)
@@ -305,25 +305,25 @@ SnapshotApi.prototype.restore = function snapshotRestoreApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
-  if (params['snapshot'] == null) {
+  if (params.snapshot == null) {
     const err = new this[kConfigurationError]('Missing required parameter: snapshot')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['snapshot'] != null && (params['repository'] == null)) {
+  if (params.snapshot != null && (params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, snapshot, ...querystring } = params
+  let { method, body, repository, snapshot, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + encodeURIComponent(snapshot) + '/' + '_restore'
 
@@ -342,15 +342,15 @@ SnapshotApi.prototype.status = function snapshotStatusApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required url components
-  if (params['snapshot'] != null && (params['repository'] == null)) {
+  if (params.snapshot != null && (params.repository == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, snapshot, ...querystring } = params
+  let { method, body, repository, snapshot, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((repository) != null && (snapshot) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + encodeURIComponent(snapshot) + '/' + '_status'
@@ -377,15 +377,15 @@ SnapshotApi.prototype.verifyRepository = function snapshotVerifyRepositoryApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['repository'] == null) {
+  if (params.repository == null) {
     const err = new this[kConfigurationError]('Missing required parameter: repository')
     return handleError(err, callback)
   }
 
-  var { method, body, repository, ...querystring } = params
+  let { method, body, repository, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_snapshot' + '/' + encodeURIComponent(repository) + '/' + '_verify'
 

api/api/sql.js

@@ -35,15 +35,15 @@ SqlApi.prototype.clearCursor = function sqlClearCursorApi (params, options, call
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_sql' + '/' + 'close'
 
@@ -62,15 +62,15 @@ SqlApi.prototype.query = function sqlQueryApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + '_sql'
 
@@ -89,15 +89,15 @@ SqlApi.prototype.translate = function sqlTranslateApi (params, options, callback
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + '_sql' + '/' + 'translate'
 

api/api/ssl.js

@@ -34,10 +34,10 @@ function SslApi (transport, ConfigurationError) {
 SslApi.prototype.certificates = function sslCertificatesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_ssl' + '/' + 'certificates'
 

api/api/tasks.js

@@ -34,10 +34,10 @@ function TasksApi (transport, ConfigurationError) {
 TasksApi.prototype.cancel = function tasksCancelApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, taskId, task_id, ...querystring } = params
+  let { method, body, taskId, task_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((task_id || taskId) != null) {
     if (method == null) method = 'POST'
     path = '/' + '_tasks' + '/' + encodeURIComponent(task_id || taskId) + '/' + '_cancel'
@@ -61,15 +61,15 @@ TasksApi.prototype.get = function tasksGetApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['task_id'] == null && params['taskId'] == null) {
+  if (params.task_id == null && params.taskId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: task_id or taskId')
     return handleError(err, callback)
   }
 
-  var { method, body, taskId, task_id, ...querystring } = params
+  let { method, body, taskId, task_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_tasks' + '/' + encodeURIComponent(task_id || taskId)
 
@@ -87,10 +87,10 @@ TasksApi.prototype.get = function tasksGetApi (params, options, callback) {
 TasksApi.prototype.list = function tasksListApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_tasks'
 

api/api/termvectors.js

@@ -30,15 +30,15 @@ function termvectorsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, id, type, ...querystring } = params
+  let { method, body, index, id, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = body == null ? 'GET' : 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_termvectors'

api/api/text_structure.js

@@ -0,0 +1,65 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+const { handleError, snakeCaseKeys, normalizeArguments, kConfigurationError } = require('../utils')
+const acceptedQuerystring = ['lines_to_sample', 'line_merge_size_limit', 'timeout', 'charset', 'format', 'has_header_row', 'column_names', 'delimiter', 'quote', 'should_trim_fields', 'grok_pattern', 'timestamp_field', 'timestamp_format', 'explain', 'pretty', 'human', 'error_trace', 'source', 'filter_path']
+const snakeCase = { linesToSample: 'lines_to_sample', lineMergeSizeLimit: 'line_merge_size_limit', hasHeaderRow: 'has_header_row', columnNames: 'column_names', shouldTrimFields: 'should_trim_fields', grokPattern: 'grok_pattern', timestampField: 'timestamp_field', timestampFormat: 'timestamp_format', errorTrace: 'error_trace', filterPath: 'filter_path' }
+
+function TextStructureApi (transport, ConfigurationError) {
+  this.transport = transport
+  this[kConfigurationError] = ConfigurationError
+}
+
+TextStructureApi.prototype.findStructure = function textStructureFindStructureApi (params, options, callback) {
+  ;[params, options, callback] = normalizeArguments(params, options, callback)
+
+  // check required parameters
+  if (params.body == null) {
+    const err = new this[kConfigurationError]('Missing required parameter: body')
+    return handleError(err, callback)
+  }
+
+  let { method, body, ...querystring } = params
+  querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
+
+  let path = ''
+  if (method == null) method = 'POST'
+  path = '/' + '_text_structure' + '/' + 'find_structure'
+
+  // build request object
+  const request = {
+    method,
+    path,
+    body: body || '',
+    querystring
+  }
+
+  return this.transport.request(request, options, callback)
+}
+
+Object.defineProperties(TextStructureApi.prototype, {
+  find_structure: { get () { return this.findStructure } }
+})
+
+module.exports = TextStructureApi

api/api/transform.js

@@ -35,15 +35,15 @@ TransformApi.prototype.deleteTransform = function transformDeleteTransformApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['transform_id'] == null && params['transformId'] == null) {
+  if (params.transform_id == null && params.transformId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: transform_id or transformId')
     return handleError(err, callback)
   }
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_transform' + '/' + encodeURIComponent(transform_id || transformId)
 
@@ -61,10 +61,10 @@ TransformApi.prototype.deleteTransform = function transformDeleteTransformApi (p
 TransformApi.prototype.getTransform = function transformGetTransformApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((transform_id || transformId) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_transform' + '/' + encodeURIComponent(transform_id || transformId)
@@ -88,15 +88,15 @@ TransformApi.prototype.getTransformStats = function transformGetTransformStatsAp
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['transform_id'] == null && params['transformId'] == null) {
+  if (params.transform_id == null && params.transformId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: transform_id or transformId')
     return handleError(err, callback)
   }
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_transform' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_stats'
 
@@ -115,15 +115,15 @@ TransformApi.prototype.previewTransform = function transformPreviewTransformApi
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_transform' + '/' + '_preview'
 
@@ -142,19 +142,19 @@ TransformApi.prototype.putTransform = function transformPutTransformApi (params,
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['transform_id'] == null && params['transformId'] == null) {
+  if (params.transform_id == null && params.transformId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: transform_id or transformId')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_transform' + '/' + encodeURIComponent(transform_id || transformId)
 
@@ -173,15 +173,15 @@ TransformApi.prototype.startTransform = function transformStartTransformApi (par
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['transform_id'] == null && params['transformId'] == null) {
+  if (params.transform_id == null && params.transformId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: transform_id or transformId')
     return handleError(err, callback)
   }
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_transform' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_start'
 
@@ -200,15 +200,15 @@ TransformApi.prototype.stopTransform = function transformStopTransformApi (param
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['transform_id'] == null && params['transformId'] == null) {
+  if (params.transform_id == null && params.transformId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: transform_id or transformId')
     return handleError(err, callback)
   }
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_transform' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_stop'
 
@@ -227,19 +227,19 @@ TransformApi.prototype.updateTransform = function transformUpdateTransformApi (p
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['transform_id'] == null && params['transformId'] == null) {
+  if (params.transform_id == null && params.transformId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: transform_id or transformId')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, transformId, transform_id, ...querystring } = params
+  let { method, body, transformId, transform_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_transform' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_update'
 

api/api/update.js

@@ -30,23 +30,23 @@ function updateApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
-  if (params['body'] == null) {
+  if (params.body == null) {
     const err = new this[kConfigurationError]('Missing required parameter: body')
     return handleError(err, callback)
   }
 
-  var { method, body, id, index, type, ...querystring } = params
+  let { method, body, id, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null && (id) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_update'

api/api/update_by_query.js

@@ -30,21 +30,21 @@ function updateByQueryApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['index'] == null) {
+  if (params.index == null) {
     const err = new this[kConfigurationError]('Missing required parameter: index')
     return handleError(err, callback)
   }
 
   // check required url components
-  if (params['type'] != null && (params['index'] == null)) {
+  if (params.type != null && (params.index == null)) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: index')
     return handleError(err, callback)
   }
 
-  var { method, body, index, type, ...querystring } = params
+  let { method, body, index, type, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((index) != null && (type) != null) {
     if (method == null) method = 'POST'
     path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_update_by_query'

api/api/update_by_query_rethrottle.js

@@ -30,19 +30,19 @@ function updateByQueryRethrottleApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['task_id'] == null && params['taskId'] == null) {
+  if (params.task_id == null && params.taskId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: task_id or taskId')
     return handleError(err, callback)
   }
-  if (params['requests_per_second'] == null && params['requestsPerSecond'] == null) {
+  if (params.requests_per_second == null && params.requestsPerSecond == null) {
     const err = new this[kConfigurationError]('Missing required parameter: requests_per_second or requestsPerSecond')
     return handleError(err, callback)
   }
 
-  var { method, body, taskId, task_id, ...querystring } = params
+  let { method, body, taskId, task_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_update_by_query' + '/' + encodeURIComponent(task_id || taskId) + '/' + '_rethrottle'
 

api/api/watcher.js

@@ -35,21 +35,21 @@ WatcherApi.prototype.ackWatch = function watcherAckWatchApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['watch_id'] == null && params['watchId'] == null) {
+  if (params.watch_id == null && params.watchId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: watch_id or watchId')
     return handleError(err, callback)
   }
 
   // check required url components
-  if ((params['action_id'] != null || params['actionId'] != null) && ((params['watch_id'] == null && params['watchId'] == null))) {
+  if ((params.action_id != null || params.actionId != null) && ((params.watch_id == null && params.watchId == null))) {
     const err = new this[kConfigurationError]('Missing required parameter of the url: watch_id')
     return handleError(err, callback)
   }
 
-  var { method, body, watchId, watch_id, actionId, action_id, ...querystring } = params
+  let { method, body, watchId, watch_id, actionId, action_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((watch_id || watchId) != null && (action_id || actionId) != null) {
     if (method == null) method = 'PUT'
     path = '/' + '_watcher' + '/' + 'watch' + '/' + encodeURIComponent(watch_id || watchId) + '/' + '_ack' + '/' + encodeURIComponent(action_id || actionId)
@@ -73,15 +73,15 @@ WatcherApi.prototype.activateWatch = function watcherActivateWatchApi (params, o
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['watch_id'] == null && params['watchId'] == null) {
+  if (params.watch_id == null && params.watchId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: watch_id or watchId')
     return handleError(err, callback)
   }
 
-  var { method, body, watchId, watch_id, ...querystring } = params
+  let { method, body, watchId, watch_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_watcher' + '/' + 'watch' + '/' + encodeURIComponent(watch_id || watchId) + '/' + '_activate'
 
@@ -100,15 +100,15 @@ WatcherApi.prototype.deactivateWatch = function watcherDeactivateWatchApi (param
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['watch_id'] == null && params['watchId'] == null) {
+  if (params.watch_id == null && params.watchId == null) {
     const err = new this[kConfigurationError]('Missing required parameter: watch_id or watchId')
     return handleError(err, callback)
   }
 
-  var { method, body, watchId, watch_id, ...querystring } = params
+  let { method, body, watchId, watch_id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_watcher' + '/' + 'watch' + '/' + encodeURIComponent(watch_id || watchId) + '/' + '_deactivate'
 
@@ -127,15 +127,15 @@ WatcherApi.prototype.deleteWatch = function watcherDeleteWatchApi (params, optio
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'DELETE'
   path = '/' + '_watcher' + '/' + 'watch' + '/' + encodeURIComponent(id)
 
@@ -153,10 +153,10 @@ WatcherApi.prototype.deleteWatch = function watcherDeleteWatchApi (params, optio
 WatcherApi.prototype.executeWatch = function watcherExecuteWatchApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((id) != null) {
     if (method == null) method = 'PUT'
     path = '/' + '_watcher' + '/' + 'watch' + '/' + encodeURIComponent(id) + '/' + '_execute'
@@ -180,15 +180,15 @@ WatcherApi.prototype.getWatch = function watcherGetWatchApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_watcher' + '/' + 'watch' + '/' + encodeURIComponent(id)
 
@@ -207,15 +207,15 @@ WatcherApi.prototype.putWatch = function watcherPutWatchApi (params, options, ca
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
   // check required parameters
-  if (params['id'] == null) {
+  if (params.id == null) {
     const err = new this[kConfigurationError]('Missing required parameter: id')
     return handleError(err, callback)
   }
 
-  var { method, body, id, ...querystring } = params
+  let { method, body, id, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'PUT'
   path = '/' + '_watcher' + '/' + 'watch' + '/' + encodeURIComponent(id)
 
@@ -233,10 +233,10 @@ WatcherApi.prototype.putWatch = function watcherPutWatchApi (params, options, ca
 WatcherApi.prototype.queryWatches = function watcherQueryWatchesApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = body == null ? 'GET' : 'POST'
   path = '/' + '_watcher' + '/' + '_query' + '/' + 'watches'
 
@@ -254,10 +254,10 @@ WatcherApi.prototype.queryWatches = function watcherQueryWatchesApi (params, opt
 WatcherApi.prototype.start = function watcherStartApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_watcher' + '/' + '_start'
 
@@ -275,10 +275,10 @@ WatcherApi.prototype.start = function watcherStartApi (params, options, callback
 WatcherApi.prototype.stats = function watcherStatsApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, metric, ...querystring } = params
+  let { method, body, metric, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if ((metric) != null) {
     if (method == null) method = 'GET'
     path = '/' + '_watcher' + '/' + 'stats' + '/' + encodeURIComponent(metric)
@@ -301,10 +301,10 @@ WatcherApi.prototype.stats = function watcherStatsApi (params, options, callback
 WatcherApi.prototype.stop = function watcherStopApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'POST'
   path = '/' + '_watcher' + '/' + '_stop'
 

api/api/xpack.js

@@ -34,10 +34,10 @@ function XpackApi (transport, ConfigurationError) {
 XpackApi.prototype.info = function xpackInfoApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_xpack'
 
@@ -55,10 +55,10 @@ XpackApi.prototype.info = function xpackInfoApi (params, options, callback) {
 XpackApi.prototype.usage = function xpackUsageApi (params, options, callback) {
   ;[params, options, callback] = normalizeArguments(params, options, callback)
 
-  var { method, body, ...querystring } = params
+  let { method, body, ...querystring } = params
   querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring)
 
-  var path = ''
+  let path = ''
   if (method == null) method = 'GET'
   path = '/' + '_xpack' + '/' + 'usage'
 

api/index.js

@@ -33,6 +33,7 @@ const deleteScriptApi = require('./api/delete_script')
 const existsApi = require('./api/exists')
 const existsSourceApi = require('./api/exists_source')
 const explainApi = require('./api/explain')
+const FeaturesApi = require('./api/features')
 const fieldCapsApi = require('./api/field_caps')
 const getApi = require('./api/get')
 const getScriptApi = require('./api/get_script')
@@ -74,6 +75,7 @@ const EqlApi = require('./api/eql')
 const GraphApi = require('./api/graph')
 const IlmApi = require('./api/ilm')
 const LicenseApi = require('./api/license')
+const LogstashApi = require('./api/logstash')
 const MigrationApi = require('./api/migration')
 const MlApi = require('./api/ml')
 const MonitoringApi = require('./api/monitoring')
@@ -84,6 +86,7 @@ const SecurityApi = require('./api/security')
 const SlmApi = require('./api/slm')
 const SqlApi = require('./api/sql')
 const SslApi = require('./api/ssl')
+const TextStructureApi = require('./api/text_structure')
 const TransformApi = require('./api/transform')
 const WatcherApi = require('./api/watcher')
 const XpackApi = require('./api/xpack')
@@ -92,6 +95,7 @@ const { kConfigurationError } = require('./utils')
 const kCat = Symbol('Cat')
 const kCluster = Symbol('Cluster')
 const kDanglingIndices = Symbol('DanglingIndices')
+const kFeatures = Symbol('Features')
 const kIndices = Symbol('Indices')
 const kIngest = Symbol('Ingest')
 const kNodes = Symbol('Nodes')
@@ -105,6 +109,7 @@ const kEql = Symbol('Eql')
 const kGraph = Symbol('Graph')
 const kIlm = Symbol('Ilm')
 const kLicense = Symbol('License')
+const kLogstash = Symbol('Logstash')
 const kMigration = Symbol('Migration')
 const kMl = Symbol('Ml')
 const kMonitoring = Symbol('Monitoring')
@@ -114,6 +119,7 @@ const kSecurity = Symbol('Security')
 const kSlm = Symbol('Slm')
 const kSql = Symbol('Sql')
 const kSsl = Symbol('Ssl')
+const kTextStructure = Symbol('TextStructure')
 const kTransform = Symbol('Transform')
 const kWatcher = Symbol('Watcher')
 const kXpack = Symbol('Xpack')
@@ -123,6 +129,7 @@ function ESAPI (opts) {
   this[kCat] = null
   this[kCluster] = null
   this[kDanglingIndices] = null
+  this[kFeatures] = null
   this[kIndices] = null
   this[kIngest] = null
   this[kNodes] = null
@@ -136,6 +143,7 @@ function ESAPI (opts) {
   this[kGraph] = null
   this[kIlm] = null
   this[kLicense] = null
+  this[kLogstash] = null
   this[kMigration] = null
   this[kMl] = null
   this[kMonitoring] = null
@@ -145,6 +153,7 @@ function ESAPI (opts) {
   this[kSlm] = null
   this[kSql] = null
   this[kSsl] = null
+  this[kTextStructure] = null
   this[kTransform] = null
   this[kWatcher] = null
   this[kXpack] = null
@@ -222,6 +231,14 @@ Object.defineProperties(ESAPI.prototype, {
   delete_by_query_rethrottle: { get () { return this.deleteByQueryRethrottle } },
   delete_script: { get () { return this.deleteScript } },
   exists_source: { get () { return this.existsSource } },
+  features: {
+    get () {
+      if (this[kFeatures] === null) {
+        this[kFeatures] = new FeaturesApi(this.transport, this[kConfigurationError])
+      }
+      return this[kFeatures]
+    }
+  },
   field_caps: { get () { return this.fieldCaps } },
   get_script: { get () { return this.getScript } },
   get_script_context: { get () { return this.getScriptContext } },
@@ -343,6 +360,14 @@ Object.defineProperties(ESAPI.prototype, {
       return this[kLicense]
     }
   },
+  logstash: {
+    get () {
+      if (this[kLogstash] === null) {
+        this[kLogstash] = new LogstashApi(this.transport, this[kConfigurationError])
+      }
+      return this[kLogstash]
+    }
+  },
   migration: {
     get () {
       if (this[kMigration] === null) {
@@ -417,6 +442,15 @@ Object.defineProperties(ESAPI.prototype, {
       return this[kSsl]
     }
   },
+  textStructure: {
+    get () {
+      if (this[kTextStructure] === null) {
+        this[kTextStructure] = new TextStructureApi(this.transport, this[kConfigurationError])
+      }
+      return this[kTextStructure]
+    }
+  },
+  text_structure: { get () { return this.textStructure } },
   transform: {
     get () {
       if (this[kTransform] === null) {

api/kibana.d.ts

@@ -170,11 +170,15 @@ interface KibanaClient {
   eql: {
     delete<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.EqlDelete, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     get<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.EqlGet, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    getStatus<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.EqlGetStatus, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     search<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.EqlSearch<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   }
   exists<TResponse = boolean, TContext = Context>(params?: RequestParams.Exists, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   existsSource<TResponse = boolean, TContext = Context>(params?: RequestParams.ExistsSource, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   explain<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.Explain<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+  features: {
+    getFeatures<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.FeaturesGetFeatures, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+  }
   fieldCaps<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.FieldCaps<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   get<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.Get, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   getScript<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.GetScript, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
@@ -271,6 +275,11 @@ interface KibanaClient {
     postStartBasic<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LicensePostStartBasic, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     postStartTrial<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LicensePostStartTrial, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   }
+  logstash: {
+    deletePipeline<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashDeletePipeline, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    getPipeline<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashGetPipeline, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    putPipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashPutPipeline<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+  }
   mget<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.Mget<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   migration: {
     deprecations<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.MigrationDeprecations, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
@@ -291,7 +300,6 @@ interface KibanaClient {
     estimateModelMemory<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.MlEstimateModelMemory<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     evaluateDataFrame<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.MlEvaluateDataFrame<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     explainDataFrameAnalytics<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.MlExplainDataFrameAnalytics<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
-    findFileStructure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(params?: RequestParams.MlFindFileStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     flushJob<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.MlFlushJob<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     forecast<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.MlForecast, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     getBuckets<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.MlGetBuckets<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
@@ -449,6 +457,9 @@ interface KibanaClient {
     list<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.TasksList, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   }
   termvectors<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.Termvectors<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+  textStructure: {
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.TextStructureFindStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+  }
   transform: {
     deleteTransform<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.TransformDeleteTransform, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     getTransform<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.TransformGetTransform, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>

api/requestParams.d.ts

@@ -299,6 +299,7 @@ export interface CatPlugins extends Generic {
   master_timeout?: string;
   h?: string | string[];
   help?: boolean;
+  include_bootstrap?: boolean;
   s?: string | string[];
   v?: boolean;
 }
@@ -731,6 +732,10 @@ export interface EqlGet extends Generic {
   keep_alive?: string;
 }
 
+export interface EqlGetStatus extends Generic {
+  id: string;
+}
+
 export interface EqlSearch<T = RequestBody> extends Generic {
   index: string;
   wait_for_completion_timeout?: string;
@@ -795,6 +800,10 @@ export interface Explain<T = RequestBody> extends Generic {
   body?: T;
 }
 
+export interface FeaturesGetFeatures extends Generic {
+  master_timeout?: string;
+}
+
 export interface FieldCaps<T = RequestBody> extends Generic {
   index?: string | string[];
   fields?: string | string[];
@@ -1446,6 +1455,19 @@ export interface LicensePostStartTrial extends Generic {
   acknowledge?: boolean;
 }
 
+export interface LogstashDeletePipeline extends Generic {
+  id: string;
+}
+
+export interface LogstashGetPipeline extends Generic {
+  id: string;
+}
+
+export interface LogstashPutPipeline<T = RequestBody> extends Generic {
+  id: string;
+  body: T;
+}
+
 export interface Mget<T = RequestBody> extends Generic {
   index?: string;
   type?: string;
@@ -1546,24 +1568,6 @@ export interface MlExplainDataFrameAnalytics<T = RequestBody> extends Generic {
   body?: T;
 }
 
-export interface MlFindFileStructure<T = RequestNDBody> extends Generic {
-  lines_to_sample?: number;
-  line_merge_size_limit?: number;
-  timeout?: string;
-  charset?: string;
-  format?: 'ndjson' | 'xml' | 'delimited' | 'semi_structured_text';
-  has_header_row?: boolean;
-  column_names?: string | string[];
-  delimiter?: string;
-  quote?: string;
-  should_trim_fields?: boolean;
-  grok_pattern?: string;
-  timestamp_field?: string;
-  timestamp_format?: string;
-  explain?: boolean;
-  body: T;
-}
-
 export interface MlFlushJob<T = RequestBody> extends Generic {
   job_id: string;
   calc_interim?: boolean;
@@ -2136,6 +2140,7 @@ export interface Search<T = RequestBody> extends Generic {
   max_concurrent_shard_requests?: number;
   pre_filter_shard_size?: number;
   rest_total_hits_as_int?: boolean;
+  min_compatible_shard_node?: string;
   body?: T;
 }
 
@@ -2180,6 +2185,7 @@ export interface SearchableSnapshotsMount<T = RequestBody> extends Generic {
   snapshot: string;
   master_timeout?: string;
   wait_for_completion?: boolean;
+  storage?: string;
   body: T;
 }
 
@@ -2189,6 +2195,7 @@ export interface SearchableSnapshotsRepositoryStats extends Generic {
 
 export interface SearchableSnapshotsStats extends Generic {
   index?: string | string[];
+  level?: 'cluster' | 'indices' | 'shards';
 }
 
 export interface SecurityAuthenticate extends Generic {
@@ -2496,6 +2503,24 @@ export interface Termvectors<T = RequestBody> extends Generic {
   body?: T;
 }
 
+export interface TextStructureFindStructure<T = RequestBody> extends Generic {
+  lines_to_sample?: number;
+  line_merge_size_limit?: number;
+  timeout?: string;
+  charset?: string;
+  format?: 'ndjson' | 'xml' | 'delimited' | 'semi_structured_text';
+  has_header_row?: boolean;
+  column_names?: string | string[];
+  delimiter?: string;
+  quote?: string;
+  should_trim_fields?: boolean;
+  grok_pattern?: string;
+  timestamp_field?: string;
+  timestamp_format?: string;
+  explain?: boolean;
+  body: T;
+}
+
 export interface TransformDeleteTransform extends Generic {
   transform_id: string;
   force?: boolean;

api/utils.js

@@ -31,10 +31,10 @@ function handleError (err, callback) {
 }
 
 function snakeCaseKeys (acceptedQuerystring, snakeCase, querystring) {
-  var target = {}
-  var keys = Object.keys(querystring)
-  for (var i = 0, len = keys.length; i < len; i++) {
-    var key = keys[i]
+  const target = {}
+  const keys = Object.keys(querystring)
+  for (let i = 0, len = keys.length; i < len; i++) {
+    const key = keys[i]
     target[snakeCase[key] || key] = querystring[key]
   }
   return target

docs/advanced-config.asciidoc

@@ -0,0 +1,120 @@
+[[advanced-config]]
+=== Advanced configuration
+
+If you need to customize the client behavior heavily, you are in the right 
+place! The client enables you to customize the following internals:
+
+* `Transport` class
+* `ConnectionPool` class
+* `Connection` class
+* `Serializer` class
+
+
+[discrete]
+==== `Transport`
+
+This class is responsible for performing the request to {es} and handling 
+errors, it also handles the sniffing.
+
+[source,js]
+----
+const { Client, Transport } = require('@elastic/elasticsearch')
+
+class MyTransport extends Transport {
+  request (params, options, callback) {
+    // your code
+  }
+}
+
+const client = new Client({
+    Transport: MyTransport
+})
+----
+
+Sometimes you need to inject a small snippet of your code and then continue to 
+use the usual client code. In such cases, call `super.method`:
+
+[source,js]
+----
+class MyTransport extends Transport {
+  request (params, options, callback) {
+    // your code
+    return super.request(params, options, callback)
+  }
+}
+----
+
+
+[discrete]
+==== `ConnectionPool`
+
+This class is responsible for keeping in memory all the {es} Connection that you 
+are using. There is a single Connection for every node. The connection pool 
+handles the resurrection strategies and the updates of the pool.
+
+[source,js]
+----
+const { Client, ConnectionPool } = require('@elastic/elasticsearch')
+
+class MyConnectionPool extends ConnectionPool {
+  markAlive (connection) {
+    // your code
+    super.markAlive(connection)
+  }
+}
+
+const client = new Client({
+    ConnectionPool: MyConnectionPool
+})
+----
+
+
+[discrete]
+==== `Connection`
+
+This class represents a single node, it holds every information we have on the 
+node, such as roles, id, URL, custom headers and so on. The actual HTTP request 
+is performed here, this means that if you want to swap the default HTTP client 
+(Node.js core), you should override the `request` method of this class.
+
+[source,js]
+----
+const { Client, Connection } = require('@elastic/elasticsearch')
+
+class MyConnection extends Connection {
+  request (params, callback) {
+    // your code
+  }
+}
+
+const client = new Client({
+  Connection: MyConnection
+})
+----
+
+
+[discrete]
+==== `Serializer`
+
+This class is responsible for the serialization of every request, it offers the 
+following methods:
+
+* `serialize(object: any): string;` serializes request objects.
+* `deserialize(json: string): any;` deserializes response strings.
+* `ndserialize(array: any[]): string;` serializes bulk request objects.
+* `qserialize(object: any): string;` serializes request query parameters.
+
+[source,js]
+----
+const { Client, Serializer } = require('@elastic/elasticsearch')
+
+class MySerializer extends Serializer {
+  serialize (object) {
+    // your code
+  }
+}
+
+const client = new Client({
+  Serializer: MySerializer
+})
+----

docs/basic-config.asciidoc

@@ -0,0 +1,247 @@
+[[basic-config]]
+=== Basic configuration
+
+This page shows you the possible basic configuration options that the clients 
+offers.
+
+
+[source,js]
+----
+const { Client } = require('@elastic/elasticsearch')
+
+const client = new Client({
+  node: 'http://localhost:9200',
+  maxRetries: 5,
+  requestTimeout: 60000,
+  sniffOnStart: true
+})
+----
+
+
+[cols=2*]
+|===
+|`node` or `nodes`
+a|The Elasticsearch endpoint to use. +
+It can be a single string or an array of strings:
+[source,js]
+----
+node: 'http://localhost:9200'
+----
+Or it can be an object (or an array of objects) that represents the node:
+[source,js]
+----
+node: {
+  url: new URL('http://localhost:9200'),
+  ssl: 'ssl options',
+  agent: 'http agent options',
+  id: 'custom node id',
+  headers: { 'custom': 'headers' }
+  roles: {
+    master: true,
+    data: true,
+    ingest: true,
+    ml: false
+  }
+}
+----
+
+|`auth`
+a|Your authentication data. You can use both basic authentication and 
+{ref}/security-api-create-api-key.html[ApiKey]. +
+See https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/auth-reference.html[Authentication] 
+for more details. +
+_Default:_ `null`
+
+Basic authentication:
+[source,js]
+----
+auth: {
+  username: 'elastic',
+  password: 'changeme'
+}
+----
+{ref}/security-api-create-api-key.html[ApiKey] authentication:
+[source,js]
+----
+auth: {
+  apiKey: 'base64EncodedKey'
+}
+----
+
+
+|`maxRetries`
+|`number` - Max number of retries for each request. +
+_Default:_ `3`
+
+|`requestTimeout`
+|`number` - Max request timeout in milliseconds for each request. +
+_Default:_ `30000`
+
+|`pingTimeout`
+|`number` - Max ping request timeout in milliseconds for each request. +
+_Default:_ `3000`
+
+|`sniffInterval`
+|`number, boolean` - Perform a sniff operation every `n` milliseconds. Sniffing might not be the best solution for you, take a look https://www.elastic.co/blog/elasticsearch-sniffing-best-practices-what-when-why-how[here] to know more. +
+_Default:_ `false`
+
+|`sniffOnStart`
+|`boolean` - Perform a sniff once the client is started. Sniffing might not be the best solution for you, take a look https://www.elastic.co/blog/elasticsearch-sniffing-best-practices-what-when-why-how[here] to know more. +
+_Default:_ `false`
+
+|`sniffEndpoint`
+|`string` - Endpoint to ping during a sniff. +
+_Default:_ `'_nodes/_all/http'`
+
+|`sniffOnConnectionFault`
+|`boolean` - Perform a sniff on connection fault. Sniffing might not be the best solution for you, take a look https://www.elastic.co/blog/elasticsearch-sniffing-best-practices-what-when-why-how[here] to know more. +
+_Default:_ `false`
+
+|`resurrectStrategy`
+|`string` - Configure the node resurrection strategy. +
+_Options:_ `'ping'`, `'optimistic'`, `'none'` +
+_Default:_ `'ping'`
+
+|`suggestCompression`
+|`boolean` - Adds `accept-encoding` header to every request. +
+_Default:_ `false`
+
+|`compression`
+|`string, boolean` - Enables gzip request body compression. +
+_Options:_ `'gzip'`, `false` +
+_Default:_ `false`
+
+|`ssl`
+|`http.SecureContextOptions` - ssl https://nodejs.org/api/tls.html[configuraton]. +
+_Default:_ `null`
+
+|`proxy`
+a|`string, URL` - If you are using an http(s) proxy, you can put its url here.
+The client will automatically handle the connection to it. +
+_Default:_ `null`
+[source,js]
+----
+const client = new Client({
+  node: 'http://localhost:9200',
+  proxy: 'http://localhost:8080'
+})
+
+// Proxy with basic authentication
+const client = new Client({
+  node: 'http://localhost:9200',
+  proxy: 'http://user:pwd@localhost:8080'
+})
+----
+
+|`agent`
+a|`http.AgentOptions, function` - http agent https://nodejs.org/api/http.html#http_new_agent_options[options], 
+or a function that returns an actual http agent instance. If you want to disable the http agent use entirely
+(and disable the `keep-alive` feature), set the agent to `false`. +
+_Default:_ `null`
+[source,js]
+----
+const client = new Client({
+  node: 'http://localhost:9200',
+  agent: { agent: 'options' }
+})
+
+const client = new Client({
+  node: 'http://localhost:9200',
+  // the function takes as parameter the option
+  // object passed to the Connection constructor
+  agent: (opts) => new CustomAgent()
+})
+
+const client = new Client({
+  node: 'http://localhost:9200',
+  // Disable agent and keep-alive
+  agent: false
+})
+----
+
+|`nodeFilter`
+a|`function` - Filters which node not to use for a request. +
+_Default:_
+[source,js]
+----
+function defaultNodeFilter (node) {
+  // avoid master only nodes
+  if (node.roles.master === true &&
+      node.roles.data === false &&
+      node.roles.ingest === false) {
+    return false
+  }
+  return true
+}
+----
+
+|`nodeSelector`
+a|`function` - custom selection strategy. +
+_Options:_ `'round-robin'`, `'random'`, custom function +
+_Default:_ `'round-robin'` +
+_Custom function example:_
+[source,js]
+----
+function nodeSelector (connections) {
+  const index = calculateIndex()
+  return connections[index]
+}
+----
+
+|`generateRequestId`
+a|`function` - function to generate the request id for every request, it takes 
+two parameters, the request parameters and options. +
+By default it generates an incremental integer for every request. +
+_Custom function example:_
+[source,js]
+----
+function generateRequestId (params, options) {
+  // your id generation logic
+  // must be syncronous
+  return 'id'
+}
+----
+
+|`name`
+|`string, symbol` - The name to identify the client instance in the events. +
+_Default:_ `elasticsearch-js`
+
+|`opaqueIdPrefix`
+|`string` - A string that will be use to prefix any `X-Opaque-Id` header. +
+See https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/observability.html#_x-opaque-id_support[`X-Opaque-Id` support] for more details. +
+_Default:_ `null`
+
+|`headers`
+|`object` - A set of custom headers to send in every request. +
+_Default:_ `{}`
+
+|`context`
+|`object` - A custom object that you can use for observability in your events.
+It will be merged with the API level context option. +
+_Default:_ `null`
+
+|`enableMetaHeader`
+|`boolean` - If true, adds an header named `'x-elastic-client-meta'`, containing some minimal telemetry data,
+such as the client and platform version. +
+_Default:_ `true`
+
+|`cloud`
+a|`object` - Custom configuration for connecting to 
+https://cloud.elastic.co[Elastic Cloud]. See https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/auth-reference.html[Authentication] 
+for more details. +
+_Default:_ `null` + 
+_Cloud configuration example:_ 
+[source,js]
+----
+const client = new Client({
+  cloud: {
+    id: 'name:bG9jYWxob3N0JGFiY2QkZWZnaA=='
+  }, 
+  auth: {
+    username: 'elastic',
+    password: 'changeme'
+  }
+})
+----
+
+|===

docs/changelog.asciidoc

@@ -1,6 +1,57 @@
 [[changelog-client]]
 == Changelog
 
+[discrete]
+=== 7.11.0
+
+[discrete]
+==== Features
+
+[discrete]
+===== Support for Elasticsearch `v7.11`.
+
+You can find all the API changes https://www.elastic.co/guide/en/elasticsearch/reference/7.11/release-notes-7.11.0.html[here].
+
+[discrete]
+===== Added new observability events https://github.com/elastic/elasticsearch-js/pull/1365[#1365]
+
+Two new observability events has been introduced: `serialization` and `deserialization`.
+The event order is described in the following graph, in some edge cases, the order is not guaranteed.
+You can find in https://github.com/elastic/elasticsearch-js/blob/master/test/acceptance/events-order.test.js[`test/acceptance/events-order.test.js`]
+how the order changes based on the situation.
+
+----
+serialization
+  │
+  │ (serialization and compression happens between those two events)
+  │
+  └─▶ request
+        │
+        │ (actual time spent over the wire)
+        │
+        └─▶ deserialization
+              │
+              │ (deserialization and decompression happens between those two events)
+              │
+              └─▶ response
+----
+
+[discrete]
+===== Added x-elastic-client-meta header https://github.com/elastic/elasticsearch-js/pull/1373[#1373]
+
+Adds the `x-elastic-client-meta` HTTP header which is used by Elastic Cloud
+and can be disabled with the `enableMetaHeader` parameter set to `false`.
+
+[discrete]
+==== Fixes
+
+[discrete]
+===== Fixes req.abort() with a body that is a stream calls callback(err) twice https://github.com/elastic/elasticsearch-js/pull/1376[#1376]
+
+When using a body that is a stream to client.search(), and calling req.abort(), the callback is called twice.
+Once for the RequestAbortedError, as expected, and once for a "premature close" error from end-of-stream, used by pump, used by the client.
+This issue has now been fixed.
+
 [discrete]
 === 7.10.0
 

docs/child.asciidoc

@@ -1,5 +1,5 @@
-[[child-client]]
-== Creating a child client
+[[child]]
+=== Creating a child client
 
 There are some use cases where you may need multiple instances of the client. 
 You can easily do that by calling `new Client()` as many times as you need, but 

docs/configuration.asciidoc

@@ -1,371 +1,11 @@
 [[client-configuration]]
-== Client configuration
+== Configuration
+
 
 The client is designed to be easily configured for your needs. In the following 
-section, you can see the possible basic options that you can use to configure 
-it.
+section, you can see the possible options that you can use to configure it.
 
-[source,js]
-----
-const { Client } = require('@elastic/elasticsearch')
-
-const client = new Client({
-  node: 'http://localhost:9200',
-  maxRetries: 5,
-  requestTimeout: 60000,
-  sniffOnStart: true
-})
-----
-
-[discrete]
-=== Basic options
-
-[cols=2*]
-|===
-|`node` or `nodes`
-a|The Elasticsearch endpoint to use. +
-It can be a single string or an array of strings:
-[source,js]
-----
-node: 'http://localhost:9200'
-----
-Or it can be an object (or an array of objects) that represents the node:
-[source,js]
-----
-node: {
-  url: new URL('http://localhost:9200'),
-  ssl: 'ssl options',
-  agent: 'http agent options',
-  id: 'custom node id',
-  headers: { 'custom': 'headers' }
-  roles: {
-    master: true,
-    data: true,
-    ingest: true,
-    ml: false
-  }
-}
-----
-
-|`auth`
-a|Your authentication data. You can use both basic authentication and 
-{ref}/security-api-create-api-key.html[ApiKey]. +
-See https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/auth-reference.html[Authentication] 
-for more details. +
-_Default:_ `null`
-
-Basic authentication:
-[source,js]
-----
-auth: {
-  username: 'elastic',
-  password: 'changeme'
-}
-----
-{ref}/security-api-create-api-key.html[ApiKey] authentication:
-[source,js]
-----
-auth: {
-  apiKey: 'base64EncodedKey'
-}
-----
-
-
-|`maxRetries`
-|`number` - Max number of retries for each request. +
-_Default:_ `3`
-
-|`requestTimeout`
-|`number` - Max request timeout in milliseconds for each request. +
-_Default:_ `30000`
-
-|`pingTimeout`
-|`number` - Max ping request timeout in milliseconds for each request. +
-_Default:_ `3000`
-
-|`sniffInterval`
-|`number, boolean` - Perform a sniff operation every `n` milliseconds. Sniffing might not be the best solution for you, take a look https://www.elastic.co/blog/elasticsearch-sniffing-best-practices-what-when-why-how[here] to know more. +
-_Default:_ `false`
-
-|`sniffOnStart`
-|`boolean` - Perform a sniff once the client is started. Sniffing might not be the best solution for you, take a look https://www.elastic.co/blog/elasticsearch-sniffing-best-practices-what-when-why-how[here] to know more. +
-_Default:_ `false`
-
-|`sniffEndpoint`
-|`string` - Endpoint to ping during a sniff. +
-_Default:_ `'_nodes/_all/http'`
-
-|`sniffOnConnectionFault`
-|`boolean` - Perform a sniff on connection fault. Sniffing might not be the best solution for you, take a look https://www.elastic.co/blog/elasticsearch-sniffing-best-practices-what-when-why-how[here] to know more. +
-_Default:_ `false`
-
-|`resurrectStrategy`
-|`string` - Configure the node resurrection strategy. +
-_Options:_ `'ping'`, `'optimistic'`, `'none'` +
-_Default:_ `'ping'`
-
-|`suggestCompression`
-|`boolean` - Adds `accept-encoding` header to every request. +
-_Default:_ `false`
-
-|`compression`
-|`string, boolean` - Enables gzip request body compression. +
-_Options:_ `'gzip'`, `false` +
-_Default:_ `false`
-
-|`ssl`
-|`http.SecureContextOptions` - ssl https://nodejs.org/api/tls.html[configuraton]. +
-_Default:_ `null`
-
-|`proxy`
-a|`string, URL` - If you are using an http(s) proxy, you can put its url here.
-The client will automatically handle the connection to it. +
-_Default:_ `null`
-[source,js]
-----
-const client = new Client({
-  node: 'http://localhost:9200',
-  proxy: 'http://localhost:8080'
-})
-
-// Proxy with basic authentication
-const client = new Client({
-  node: 'http://localhost:9200',
-  proxy: 'http://user:pwd@localhost:8080'
-})
-----
-
-|`agent`
-a|`http.AgentOptions, function` - http agent https://nodejs.org/api/http.html#http_new_agent_options[options], 
-or a function that returns an actual http agent instance. If you want to disable the http agent use entirely
-(and disable the `keep-alive` feature), set the agent to `false`. +
-_Default:_ `null`
-[source,js]
-----
-const client = new Client({
-  node: 'http://localhost:9200',
-  agent: { agent: 'options' }
-})
-
-const client = new Client({
-  node: 'http://localhost:9200',
-  // the function takes as parameter the option
-  // object passed to the Connection constructor
-  agent: (opts) => new CustomAgent()
-})
-
-const client = new Client({
-  node: 'http://localhost:9200',
-  // Disable agent and keep-alive
-  agent: false
-})
-----
-
-|`nodeFilter`
-a|`function` - Filters which node not to use for a request. +
-_Default:_
-[source,js]
-----
-function defaultNodeFilter (node) {
-  // avoid master only nodes
-  if (node.roles.master === true &&
-      node.roles.data === false &&
-      node.roles.ingest === false) {
-    return false
-  }
-  return true
-}
-----
-
-|`nodeSelector`
-a|`function` - custom selection strategy. +
-_Options:_ `'round-robin'`, `'random'`, custom function +
-_Default:_ `'round-robin'` +
-_Custom function example:_
-[source,js]
-----
-function nodeSelector (connections) {
-  const index = calculateIndex()
-  return connections[index]
-}
-----
-
-|`generateRequestId`
-a|`function` - function to generate the request id for every request, it takes 
-two parameters, the request parameters and options. +
-By default it generates an incremental integer for every request. +
-_Custom function example:_
-[source,js]
-----
-function generateRequestId (params, options) {
-  // your id generation logic
-  // must be syncronous
-  return 'id'
-}
-----
-
-|`name`
-|`string, symbol` - The name to identify the client instance in the events. +
-_Default:_ `elasticsearch-js`
-
-|`opaqueIdPrefix`
-|`string` - A string that will be use to prefix any `X-Opaque-Id` header. +
-See https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/observability.html#_x-opaque-id_support[`X-Opaque-Id` support] for more details. +
-_Default:_ `null`
-
-|`headers`
-|`object` - A set of custom headers to send in every request. +
-_Default:_ `{}`
-
-|`context`
-|`object` - A custom object that you can use for observability in your events.
-It will be merged with the API level context option. +
-_Default:_ `null`
-
-|`enableMetaHeader`
-|`boolean` - If true, adds an header named `'x-elastic-client-meta'`, containing some minimal telemetry data,
-such as the client and platform version. +
-_Default:_ `true`
-
-|`cloud`
-a|`object` - Custom configuration for connecting to 
-https://cloud.elastic.co[Elastic Cloud]. See https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/auth-reference.html[Authentication] 
-for more details. +
-_Default:_ `null` + 
-_Cloud configuration example:_ 
-[source,js]
-----
-const client = new Client({
-  cloud: {
-    id: 'name:bG9jYWxob3N0JGFiY2QkZWZnaA=='
-  }, 
-  auth: {
-    username: 'elastic',
-    password: 'changeme'
-  }
-})
-----
-
-|===
-
-
-[discrete]
-=== Advanced configuration
-
-If you need to customize the client behavior heavily, you are in the right 
-place! The client allows you to customize the following internals:
-
-* `Transport` class
-* `ConnectionPool` class
-* `Connection` class
-* `Serializer` class
-
-
-[discrete]
-=== `Transport`
-
-This class is responsible for performing the request to {es} and handling 
-errors, it also handles the sniffing.
-
-[source,js]
-----
-const { Client, Transport } = require('@elastic/elasticsearch')
-
-class MyTransport extends Transport {
-  request (params, options, callback) {
-    // your code
-  }
-}
-
-const client = new Client({
-    Transport: MyTransport
-})
-----
-
-Sometimes you need to inject a small snippet of your code and then continue to 
-use the usual client code. In such cases, call `super.method`:
-
-[source,js]
-----
-class MyTransport extends Transport {
-  request (params, options, callback) {
-    // your code
-    return super.request(params, options, callback)
-  }
-}
-----
-
-
-[discrete]
-=== `ConnectionPool`
-
-This class is responsible for keeping in memory all the {es} Connection that we 
-are using. There is a single Connection for every node. The connection pool 
-handles the resurrection strategies and the updates of the pool.
-
-[source,js]
-----
-const { Client, ConnectionPool } = require('@elastic/elasticsearch')
-
-class MyConnectionPool extends ConnectionPool {
-  markAlive (connection) {
-    // your code
-    super.markAlive(connection)
-  }
-}
-
-const client = new Client({
-    ConnectionPool: MyConnectionPool
-})
-----
-
-
-[discrete]
-=== `Connection`
-
-This class represents a single node, it holds every information we have on the 
-node, such as roles, id, URL, custom headers and so on. The actual HTTP request 
-is performed here, this means that if you want to swap the default HTTP client 
-(Node.js core), you should override the `request` method of this class.
-
-[source,js]
-----
-const { Client, Connection } = require('@elastic/elasticsearch')
-
-class MyConnection extends Connection {
-  request (params, callback) {
-    // your code
-  }
-}
-
-const client = new Client({
-  Connection: MyConnection
-})
-----
-
-
-[discrete]
-=== `Serializer`
-
-This class is responsible for the serialization of every request, it offers the 
-following methods:
-
-* `serialize(object: any): string;` serializes request objects.
-* `deserialize(json: string): any;` deserializes response strings.
-* `ndserialize(array: any[]): string;` serializes bulk request objects.
-* `qserialize(object: any): string;` serializes request query parameters.
-
-[source,js]
-----
-const { Client, Serializer } = require('@elastic/elasticsearch')
-
-class MySerializer extends Serializer {
-  serialize (object) {
-    // your code
-  }
-}
-
-const client = new Client({
-  Serializer: MySerializer
-})
-----
+* <<basic-config>>
+* <<advanced-config>>
+* <<child>>
+* <<extend>>

docs/examples/asStream.asciidoc

@@ -57,7 +57,7 @@ async function run () {
   })
 
   // stream async iteration, available in Node.js ≥ 10
-  var payload = ''
+  let payload = ''
   body.setEncoding('utf8')
   for await (const chunk of body) {
     payload += chunk
@@ -65,7 +65,7 @@ async function run () {
   console.log(JSON.parse(payload))
 
   // classic stream callback style
-  var payload = ''
+  let payload = ''
   body.setEncoding('utf8')
   body.on('data', chunk => { payload += chunk })
   body.on('error', console.log)

docs/examples/scroll.asciidoc

@@ -124,7 +124,7 @@ const client = new Client({ node: 'http://localhost:9200' })
 
 // Scroll utility
 async function * scrollSearch (params) {
-  var response = await client.search(params)
+  let response = await client.search(params)
 
   while (true) {
     const sourceHits = response.body.hits.hits

docs/examples/sql.query.asciidoc

@@ -51,7 +51,7 @@ async function run () {
 
   const data = body.rows.map(row => {
     const obj = {}
-    for (var i = 0; i < row.length; i++) {
+    for (let i = 0; i < row.length; i++) {
       obj[body.columns[i].name] = row[i]
     }
     return obj

docs/extend.asciidoc

@@ -1,5 +1,5 @@
-[[extend-client]]
-== Extend the client
+[[extend]]
+=== Extend the client
 
 Sometimes you need to reuse the same logic, or you want to build a custom API to 
 allow you simplify your code. The easiest way to achieve that is by extending 

docs/index.asciidoc

@@ -8,11 +8,13 @@ include::installation.asciidoc[]
 include::connecting.asciidoc[]
 include::changelog.asciidoc[]
 include::configuration.asciidoc[]
+include::basic-config.asciidoc[]
+include::advanced-config.asciidoc[]
+include::child.asciidoc[]
+include::extend.asciidoc[]
 include::reference.asciidoc[]
 include::breaking-changes.asciidoc[]
 include::observability.asciidoc[]
-include::child.asciidoc[]
-include::extend.asciidoc[]
 include::helpers.asciidoc[]
 include::typescript.asciidoc[]
 include::testing.asciidoc[]

docs/installation.asciidoc

@@ -24,7 +24,7 @@ To learn more about the supported major versions, please refer to the
 [[nodejs-support]]
 === Node.js support
 
-NOTE: The minimum supported version of Node.js is `v8`.
+NOTE: The minimum supported version of Node.js is `v10`.
 
 The client versioning follows the {stack} versioning, this means that
 major, minor, and patch releases are done following a precise schedule that

docs/reference.asciidoc

@@ -1194,6 +1194,7 @@ client.cat.plugins({
   master_timeout: string,
   h: string | string[],
   help: boolean,
+  include_bootstrap: boolean,
   s: string | string[],
   v: boolean
 })
@@ -1216,6 +1217,9 @@ link:{ref}/cat-plugins.html[Documentation] +
 |`help`
 |`boolean` - Return help information
 
+|`include_bootstrap` or `includeBootstrap`
+|`boolean` - Include bootstrap plugins in the response
+
 |`s`
 |`string \| string[]` - Comma-separated list of column names or column aliases to sort by
 
@@ -2998,6 +3002,23 @@ _Default:_ `5d`
 
 |===
 
+[discrete]
+=== eql.getStatus
+
+[source,ts]
+----
+client.eql.getStatus({
+  id: string
+})
+----
+link:{ref}/eql-search-api.html[Documentation] +
+[cols=2*]
+|===
+|`id`
+|`string` - The async search ID
+
+|===
+
 [discrete]
 === eql.search
 
@@ -3243,6 +3264,23 @@ _Default:_ `OR`
 
 |===
 
+[discrete]
+=== features.getFeatures
+
+[source,ts]
+----
+client.features.getFeatures({
+  master_timeout: string
+})
+----
+link:{ref}/modules-snapshots.html[Documentation] +
+[cols=2*]
+|===
+|`master_timeout` or `masterTimeout`
+|`string` - Explicit operation timeout for connection to master node
+
+|===
+
 [discrete]
 === fieldCaps
 
@@ -3916,7 +3954,7 @@ link:{ref}/indices-open-close.html[Documentation] +
 _Default:_ `open`
 
 |`wait_for_active_shards` or `waitForActiveShards`
-|`string` - Sets the number of active shards to wait for before the operation returns.
+|`string` - Sets the number of active shards to wait for before the operation returns. Set to `index-setting` to wait according to the index setting `index.write.wait_for_active_shards`, or `all` to wait for all shards, or an integer. Defaults to `0`.
 
 |===
 
@@ -5941,6 +5979,61 @@ link:{ref}/start-trial.html[Documentation] +
 
 |===
 
+[discrete]
+=== logstash.deletePipeline
+
+[source,ts]
+----
+client.logstash.deletePipeline({
+  id: string
+})
+----
+link:{ref}/logstash-api-delete-pipeline.html[Documentation] +
+[cols=2*]
+|===
+|`id`
+|`string` - The ID of the Pipeline
+
+|===
+
+[discrete]
+=== logstash.getPipeline
+
+[source,ts]
+----
+client.logstash.getPipeline({
+  id: string
+})
+----
+link:{ref}/logstash-api-get-pipeline.html[Documentation] +
+[cols=2*]
+|===
+|`id`
+|`string` - A comma-separated list of Pipeline IDs
+
+|===
+
+[discrete]
+=== logstash.putPipeline
+
+[source,ts]
+----
+client.logstash.putPipeline({
+  id: string,
+  body: object
+})
+----
+link:{ref}/logstash-api-put-pipeline.html[Documentation] +
+[cols=2*]
+|===
+|`id`
+|`string` - The ID of the Pipeline
+
+|`body`
+|`object` - The Pipeline to add or update
+
+|===
+
 [discrete]
 === mget
 
@@ -6355,82 +6448,6 @@ link:{ref}/explain-dfanalytics.html[Documentation] +
 
 |===
 
-[discrete]
-=== ml.findFileStructure
-*Stability:* experimental
-[source,ts]
-----
-client.ml.findFileStructure({
-  lines_to_sample: number,
-  line_merge_size_limit: number,
-  timeout: string,
-  charset: string,
-  format: 'ndjson' | 'xml' | 'delimited' | 'semi_structured_text',
-  has_header_row: boolean,
-  column_names: string | string[],
-  delimiter: string,
-  quote: string,
-  should_trim_fields: boolean,
-  grok_pattern: string,
-  timestamp_field: string,
-  timestamp_format: string,
-  explain: boolean,
-  body: object
-})
-----
-link:{ref}/ml-find-file-structure.html[Documentation] +
-[cols=2*]
-|===
-|`lines_to_sample` or `linesToSample`
-|`number` - How many lines of the file should be included in the analysis +
-_Default:_ `1000`
-
-|`line_merge_size_limit` or `lineMergeSizeLimit`
-|`number` - Maximum number of characters permitted in a single message when lines are merged to create messages. +
-_Default:_ `10000`
-
-|`timeout`
-|`string` - Timeout after which the analysis will be aborted +
-_Default:_ `25s`
-
-|`charset`
-|`string` - Optional parameter to specify the character set of the file
-
-|`format`
-|`'ndjson' \| 'xml' \| 'delimited' \| 'semi_structured_text'` - Optional parameter to specify the high level file format
-
-|`has_header_row` or `hasHeaderRow`
-|`boolean` - Optional parameter to specify whether a delimited file includes the column names in its first row
-
-|`column_names` or `columnNames`
-|`string \| string[]` - Optional parameter containing a comma separated list of the column names for a delimited file
-
-|`delimiter`
-|`string` - Optional parameter to specify the delimiter character for a delimited file - must be a single character
-
-|`quote`
-|`string` - Optional parameter to specify the quote character for a delimited file - must be a single character
-
-|`should_trim_fields` or `shouldTrimFields`
-|`boolean` - Optional parameter to specify whether the values between delimiters in a delimited file should have whitespace trimmed from them
-
-|`grok_pattern` or `grokPattern`
-|`string` - Optional parameter to specify the Grok pattern that should be used to extract fields from messages in a semi-structured text file
-
-|`timestamp_field` or `timestampField`
-|`string` - Optional parameter to specify the timestamp field in the file
-
-|`timestamp_format` or `timestampFormat`
-|`string` - Optional parameter to specify the timestamp format in the file - may be either a Joda or Java time format
-
-|`explain`
-|`boolean` - Whether to include a commentary on how the structure was derived
-
-|`body`
-|`object` - The contents of the file to be analyzed
-
-|===
-
 [discrete]
 === ml.flushJob
 
@@ -8693,6 +8710,7 @@ client.search({
   max_concurrent_shard_requests: number,
   pre_filter_shard_size: number,
   rest_total_hits_as_int: boolean,
+  min_compatible_shard_node: string,
   body: object
 })
 ----
@@ -8839,6 +8857,9 @@ _Default:_ `5`
 |`rest_total_hits_as_int` or `restTotalHitsAsInt`
 |`boolean` - Indicates whether hits.total should be rendered as an integer or an object in the rest search response
 
+|`min_compatible_shard_node` or `minCompatibleShardNode`
+|`string` - The minimum compatible version that all shards involved in search should have for this request to be successful
+
 |`body`
 |`object` - The search definition using the Query DSL
 
@@ -9005,6 +9026,7 @@ client.searchableSnapshots.mount({
   snapshot: string,
   master_timeout: string,
   wait_for_completion: boolean,
+  storage: string,
   body: object
 })
 ----
@@ -9023,6 +9045,9 @@ link:{ref}/searchable-snapshots-api-mount-snapshot.html[Documentation] +
 |`wait_for_completion` or `waitForCompletion`
 |`boolean` - Should this request wait until the operation has completed before returning
 
+|`storage`
+|`string` - Selects the kind of local storage used to accelerate searches. Experimental, and defaults to `full_copy`
+
 |`body`
 |`object` - The restore configuration for mounting the snapshot as searchable
 
@@ -9051,7 +9076,8 @@ link:{ref}/searchable-snapshots-apis.html[Documentation] +
 [source,ts]
 ----
 client.searchableSnapshots.stats({
-  index: string | string[]
+  index: string | string[],
+  level: 'cluster' | 'indices' | 'shards'
 })
 ----
 link:{ref}/searchable-snapshots-apis.html[Documentation] +
@@ -9060,6 +9086,10 @@ link:{ref}/searchable-snapshots-apis.html[Documentation] +
 |`index`
 |`string \| string[]` - A comma-separated list of index names
 
+|`level`
+|`'cluster' \| 'indices' \| 'shards'` - Return stats aggregated at cluster, index or shard level +
+_Default:_ `indices`
+
 |===
 
 [discrete]
@@ -10318,6 +10348,82 @@ _Default:_ `true`
 
 |===
 
+[discrete]
+=== textStructure.findStructure
+*Stability:* experimental
+[source,ts]
+----
+client.textStructure.findStructure({
+  lines_to_sample: number,
+  line_merge_size_limit: number,
+  timeout: string,
+  charset: string,
+  format: 'ndjson' | 'xml' | 'delimited' | 'semi_structured_text',
+  has_header_row: boolean,
+  column_names: string | string[],
+  delimiter: string,
+  quote: string,
+  should_trim_fields: boolean,
+  grok_pattern: string,
+  timestamp_field: string,
+  timestamp_format: string,
+  explain: boolean,
+  body: object
+})
+----
+link:{ref}/find-structure.html[Documentation] +
+[cols=2*]
+|===
+|`lines_to_sample` or `linesToSample`
+|`number` - How many lines of the file should be included in the analysis +
+_Default:_ `1000`
+
+|`line_merge_size_limit` or `lineMergeSizeLimit`
+|`number` - Maximum number of characters permitted in a single message when lines are merged to create messages. +
+_Default:_ `10000`
+
+|`timeout`
+|`string` - Timeout after which the analysis will be aborted +
+_Default:_ `25s`
+
+|`charset`
+|`string` - Optional parameter to specify the character set of the file
+
+|`format`
+|`'ndjson' \| 'xml' \| 'delimited' \| 'semi_structured_text'` - Optional parameter to specify the high level file format
+
+|`has_header_row` or `hasHeaderRow`
+|`boolean` - Optional parameter to specify whether a delimited file includes the column names in its first row
+
+|`column_names` or `columnNames`
+|`string \| string[]` - Optional parameter containing a comma separated list of the column names for a delimited file
+
+|`delimiter`
+|`string` - Optional parameter to specify the delimiter character for a delimited file - must be a single character
+
+|`quote`
+|`string` - Optional parameter to specify the quote character for a delimited file - must be a single character
+
+|`should_trim_fields` or `shouldTrimFields`
+|`boolean` - Optional parameter to specify whether the values between delimiters in a delimited file should have whitespace trimmed from them
+
+|`grok_pattern` or `grokPattern`
+|`string` - Optional parameter to specify the Grok pattern that should be used to extract fields from messages in a semi-structured text file
+
+|`timestamp_field` or `timestampField`
+|`string` - Optional parameter to specify the timestamp field in the file
+
+|`timestamp_format` or `timestampFormat`
+|`string` - Optional parameter to specify the timestamp format in the file - may be either a Joda or Java time format
+
+|`explain`
+|`boolean` - Whether to include a commentary on how the structure was derived
+
+|`body`
+|`object` - The contents of the file to be analyzed
+
+|===
+
 [discrete]
 === transform.deleteTransform
 

index.d.ts

@@ -691,6 +691,14 @@ declare class Client {
     get<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     get<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.EqlGet, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     get<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.EqlGet, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_status<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.EqlGetStatus, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    get_status<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_status<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.EqlGetStatus, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_status<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.EqlGetStatus, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getStatus<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.EqlGetStatus, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    getStatus<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getStatus<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.EqlGetStatus, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getStatus<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.EqlGetStatus, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     search<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.EqlSearch<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     search<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     search<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.EqlSearch<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
@@ -712,6 +720,16 @@ declare class Client {
   explain<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
   explain<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.Explain<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
   explain<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.Explain<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+  features: {
+    get_features<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.FeaturesGetFeatures, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    get_features<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_features<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.FeaturesGetFeatures, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_features<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.FeaturesGetFeatures, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getFeatures<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.FeaturesGetFeatures, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    getFeatures<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getFeatures<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.FeaturesGetFeatures, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getFeatures<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.FeaturesGetFeatures, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+  }
   field_caps<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.FieldCaps<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   field_caps<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
   field_caps<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.FieldCaps<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
@@ -1286,6 +1304,32 @@ declare class Client {
     postStartTrial<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LicensePostStartTrial, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     postStartTrial<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LicensePostStartTrial, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
   }
+  logstash: {
+    delete_pipeline<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashDeletePipeline, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    delete_pipeline<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    delete_pipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashDeletePipeline, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    delete_pipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashDeletePipeline, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    deletePipeline<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashDeletePipeline, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    deletePipeline<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    deletePipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashDeletePipeline, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    deletePipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashDeletePipeline, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_pipeline<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashGetPipeline, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    get_pipeline<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_pipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashGetPipeline, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    get_pipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashGetPipeline, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getPipeline<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashGetPipeline, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    getPipeline<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getPipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashGetPipeline, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    getPipeline<TResponse = Record<string, any>, TContext = Context>(params: RequestParams.LogstashGetPipeline, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    put_pipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashPutPipeline<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    put_pipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    put_pipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.LogstashPutPipeline<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    put_pipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.LogstashPutPipeline<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    putPipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.LogstashPutPipeline<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    putPipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    putPipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.LogstashPutPipeline<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    putPipeline<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.LogstashPutPipeline<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+  }
   mget<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.Mget<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
   mget<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
   mget<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.Mget<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
@@ -1417,14 +1461,6 @@ declare class Client {
     explainDataFrameAnalytics<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     explainDataFrameAnalytics<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.MlExplainDataFrameAnalytics<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     explainDataFrameAnalytics<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.MlExplainDataFrameAnalytics<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
-    find_file_structure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(params?: RequestParams.MlFindFileStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
-    find_file_structure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
-    find_file_structure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(params: RequestParams.MlFindFileStructure<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
-    find_file_structure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(params: RequestParams.MlFindFileStructure<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
-    findFileStructure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(params?: RequestParams.MlFindFileStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
-    findFileStructure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
-    findFileStructure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(params: RequestParams.MlFindFileStructure<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
-    findFileStructure<TResponse = Record<string, any>, TRequestBody extends RequestNDBody = Record<string, any>[], TContext = Context>(params: RequestParams.MlFindFileStructure<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     flush_job<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.MlFlushJob<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     flush_job<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
     flush_job<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.MlFlushJob<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
@@ -2432,6 +2468,26 @@ declare class Client {
   termvectors<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
   termvectors<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.Termvectors<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
   termvectors<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.Termvectors<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+  text_structure: {
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.TextStructureFindStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.TextStructureFindStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+  }
+  textStructure: {
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.TextStructureFindStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    find_structure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params?: RequestParams.TextStructureFindStructure<TRequestBody>, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+    findStructure<TResponse = Record<string, any>, TRequestBody extends RequestBody = Record<string, any>, TContext = Context>(params: RequestParams.TextStructureFindStructure<TRequestBody>, options: TransportRequestOptions, callback: callbackFn<TResponse, TContext>): TransportRequestCallback
+  }
   transform: {
     delete_transform<TResponse = Record<string, any>, TContext = Context>(params?: RequestParams.TransformDeleteTransform, options?: TransportRequestOptions): TransportRequestPromise<ApiResponse<TResponse, TContext>>
     delete_transform<TResponse = Record<string, any>, TContext = Context>(callback: callbackFn<TResponse, TContext>): TransportRequestCallback

index.js

@@ -27,13 +27,17 @@ const debug = require('debug')('elasticsearch')
 const Transport = require('./lib/Transport')
 const Connection = require('./lib/Connection')
 const { ConnectionPool, CloudConnectionPool } = require('./lib/pool')
-// Helpers works only in Node.js >= 10
-const Helpers = nodeMajor < 10 ? /* istanbul ignore next */ null : require('./lib/Helpers')
+const Helpers = require('./lib/Helpers')
 const Serializer = require('./lib/Serializer')
 const errors = require('./lib/errors')
 const { ConfigurationError } = errors
 const { prepareHeaders } = Connection.internals
-const clientVersion = require('./package.json').version
+let clientVersion = require('./package.json').version
+/* istanbul ignore next */
+if (clientVersion.includes('-')) {
+  // clean prerelease
+  clientVersion = clientVersion.slice(0, clientVersion.indexOf('-')) + 'p'
+}
 const nodeVersion = process.versions.node
 
 const kInitialOptions = Symbol('elasticsearchjs-initial-options')
@@ -43,15 +47,6 @@ const kEventEmitter = Symbol('elasticsearchjs-event-emitter')
 
 const ESAPI = require('./api')
 
-/* istanbul ignore next */
-if (nodeMajor < 10) {
-  process.emitWarning('You are using a version of Node.js that is currently in EOL. ' +
-                      'The support for this version will be dropped in 7.12. ' +
-                      'Please refer to https://ela.st/nodejs-support for additional information.',
-  'DeprecationWarning'
-  )
-}
-
 /* istanbul ignore next */
 if (nodeMajor >= 10 && nodeMajor < 12) {
   process.emitWarning('You are using a version of Node.js that will reach EOL in April 2021. ' +
@@ -184,8 +179,6 @@ class Client extends ESAPI {
       context: options.context
     })
 
-    /* istanbul ignore else */
-    if (Helpers !== null) {
     this.helpers = new Helpers({
       client: this,
       maxRetries: options.maxRetries,
@@ -194,7 +187,6 @@ class Client extends ESAPI {
         : null
     })
   }
-  }
 
   get emit () {
     return this[kEventEmitter].emit.bind(this[kEventEmitter])
@@ -218,7 +210,7 @@ class Client extends ESAPI {
       opts = {}
     }
 
-    var [namespace, method] = name.split('.')
+    let [namespace, method] = name.split('.')
     if (method == null) {
       method = namespace
       namespace = null

lib/Connection.js

@@ -213,8 +213,8 @@ class Connection {
     }
 
     const paramsKeys = Object.keys(params)
-    for (var i = 0, len = paramsKeys.length; i < len; i++) {
-      var key = paramsKeys[i]
+    for (let i = 0, len = paramsKeys.length; i < len; i++) {
+      const key = paramsKeys[i]
       if (key === 'path') {
         request.pathname = resolve(request.pathname, params[key])
       } else if (key === 'querystring' && !!params[key] === true) {

lib/Helpers.d.ts

@@ -25,8 +25,8 @@ export default class Helpers {
   search<TDocument = unknown, TRequestBody extends RequestBody = Record<string, any>>(params: Search<TRequestBody>, options?: TransportRequestOptions): Promise<TDocument[]>
   scrollSearch<TDocument = unknown, TResponse = Record<string, any>, TRequestBody extends  RequestBody = Record<string, any>, TContext = Context>(params: Search<TRequestBody>, options?: TransportRequestOptions): AsyncIterable<ScrollSearchResponse<TDocument, TResponse, TContext>>
   scrollDocuments<TDocument = unknown, TRequestBody extends RequestBody = Record<string, any>>(params: Search<TRequestBody>, options?: TransportRequestOptions): AsyncIterable<TDocument>
-  msearch(options?: MsearchHelperOptions): MsearchHelper
-  bulk<TDocument = unknown>(options: BulkHelperOptions<TDocument>): BulkHelper<BulkStats>
+  msearch(options?: MsearchHelperOptions, reqOptions?: TransportRequestOptions): MsearchHelper
+  bulk<TDocument = unknown>(options: BulkHelperOptions<TDocument>, reqOptions?: TransportRequestOptions): BulkHelper<BulkStats>
 }
 
 export interface ScrollSearchResponse<TDocument = unknown, TResponse = Record<string, any>, TContext = Context> extends ApiResponse<TResponse, TContext> {

lib/Helpers.js

@@ -158,7 +158,7 @@ class Helpers {
    */
   async * scrollDocuments (params, options) {
     appendFilterPath('hits.hits._source', params, true)
-    for await (const { documents } of this.scrollSearch(params)) {
+    for await (const { documents } of this.scrollSearch(params, options)) {
       for (const document of documents) {
         yield document
       }
@@ -169,9 +169,10 @@ class Helpers {
    * Creates a msearch helper instance. Once you configure it, you can use the provided
    * `search` method to add new searches in the queue.
    * @param {object} options - The configuration of the msearch operations.
+   * @param {object} reqOptions - The client optional configuration for this request.
    * @return {object} The possible operations to run.
    */
-  msearch (options = {}) {
+  msearch (options = {}, reqOptions = {}) {
     const client = this[kClient]
     const {
       operations = 5,
@@ -378,7 +379,7 @@ class Helpers {
       // This function never returns an error, if the msearch operation fails,
       // the error is dispatched to all search executors.
       function tryMsearch (msearchBody, callbacks, done) {
-        client.msearch(Object.assign({}, msearchOptions, { body: msearchBody }), (err, results) => {
+        client.msearch(Object.assign({}, msearchOptions, { body: msearchBody }), reqOptions, (err, results) => {
           const retryBody = []
           const retryCallbacks = []
           if (err) {
@@ -415,12 +416,16 @@ class Helpers {
    * Creates a bulk helper instance. Once you configure it, you can pick which operation
    * to execute with the given dataset, index, create, update, and delete.
    * @param {object} options - The configuration of the bulk operation.
+   * @param {object} reqOptions - The client optional configuration for this request.
    * @return {object} The possible operations to run with the datasource.
    */
-  bulk (options) {
+  bulk (options, reqOptions = {}) {
     const client = this[kClient]
     const { serialize, deserialize } = client.serializer
-    const reqOptions = this[kMetaHeader] !== null ? { headers: { 'x-elastic-client-meta': this[kMetaHeader] + ',h=bp' } } : {}
+    if (this[kMetaHeader] !== null) {
+      reqOptions.headers = reqOptions.headers || {}
+      reqOptions.headers['x-elastic-client-meta'] = this[kMetaHeader] + ',h=bp'
+    }
     const {
       datasource,
       onDocument,
@@ -545,7 +550,7 @@ class Helpers {
           index: typeof refreshOnCompletion === 'string'
             ? refreshOnCompletion
             : '_all'
-        })
+        }, reqOptions)
       }
 
       stats.time = Date.now() - startTime

lib/Serializer.js

@@ -27,8 +27,9 @@ const { SerializationError, DeserializationError } = require('./errors')
 class Serializer {
   serialize (object) {
     debug('Serializing', object)
+    let json
     try {
-      var json = JSON.stringify(object)
+      json = JSON.stringify(object)
     } catch (err) {
       throw new SerializationError(err.message, object)
     }
@@ -37,8 +38,9 @@ class Serializer {
 
   deserialize (json) {
     debug('Deserializing', json)
+    let object
     try {
-      var object = sjson.parse(json)
+      object = sjson.parse(json)
     } catch (err) {
       throw new DeserializationError(err.message, json)
     }
@@ -50,8 +52,8 @@ class Serializer {
     if (Array.isArray(array) === false) {
       throw new SerializationError('The argument provided is not an array')
     }
-    var ndjson = ''
-    for (var i = 0, len = array.length; i < len; i++) {
+    let ndjson = ''
+    for (let i = 0, len = array.length; i < len; i++) {
       if (typeof array[i] === 'string') {
         ndjson += array[i] + '\n'
       } else {
@@ -67,8 +69,8 @@ class Serializer {
     if (typeof object === 'string') return object
     // arrays should be serialized as comma separated list
     const keys = Object.keys(object)
-    for (var i = 0, len = keys.length; i < len; i++) {
-      var key = keys[i]
+    for (let i = 0, len = keys.length; i < len; i++) {
+      const key = keys[i]
       // elasticsearch will complain for keys without a value
       if (object[key] === undefined) {
         delete object[key]

lib/Transport.d.ts

@@ -120,6 +120,7 @@ export interface TransportRequestCallback {
 
 export interface TransportRequestPromise<T> extends Promise<T> {
   abort: () => void;
+  finally(onFinally?: (() => void) | undefined | null): Promise<T>;
 }
 
 export interface TransportGetConnectionOptions {

lib/Transport.js

@@ -91,7 +91,7 @@ class Transport {
       callback = options
       options = {}
     }
-    var p = null
+    let p = null
 
     // promises support
     if (callback === undefined) {
@@ -147,9 +147,10 @@ class Transport {
     // the size of the stream, we risk to take too much memory.
     // Furthermore, copying everytime the stream is very a expensive operation.
     const maxRetries = isStream(params.body) || isStream(params.bulkBody)
-      ? 0 : (typeof options.maxRetries === 'number' ? options.maxRetries : this.maxRetries)
+      ? 0
+      : (typeof options.maxRetries === 'number' ? options.maxRetries : this.maxRetries)
     const compression = options.compression !== undefined ? options.compression : this.compression
-    var request = { abort: noop }
+    let request = { abort: noop }
     const transportReturn = {
       then (onFulfilled, onRejected) {
         return p.then(onFulfilled, onRejected)
@@ -162,6 +163,9 @@ class Transport {
         request.abort()
         debug('Aborting request', params)
         return this
+      },
+      finally (onFinally) {
+        return p.finally(onFinally)
       }
     }
 
@@ -525,7 +529,7 @@ function defaultNodeFilter (node) {
 }
 
 function roundRobinSelector () {
-  var current = -1
+  let current = -1
   return function _roundRobinSelector (connections) {
     if (++current >= connections.length) {
       current = 0
@@ -540,8 +544,8 @@ function randomSelector (connections) {
 }
 
 function generateRequestId () {
-  var maxInt = 2147483647
-  var nextReqId = 0
+  const maxInt = 2147483647
+  let nextReqId = 0
   return function genReqId (params, options) {
     return (nextReqId = (nextReqId + 1) & maxInt)
   }