Stash

.ci/Dockerfile

@@ -1,13 +1,9 @@
-ARG NODE_JS_VERSION=16
+ARG NODE_JS_VERSION=10
 FROM node:${NODE_JS_VERSION}
 
 # Create app directory
 WORKDIR /usr/src/app
 
-RUN apt-get clean -y
-RUN apt-get update -y
-RUN apt-get install -y zip
-
 # Install app dependencies
 COPY package*.json ./
 RUN npm install

.ci/functions/imports.sh

@@ -18,7 +18,7 @@ require_stack_version
 if [[ -z $es_node_name ]]; then
   # only set these once
   set -euo pipefail
-  export TEST_SUITE=${TEST_SUITE-free}
+  export TEST_SUITE=${TEST_SUITE-oss}
   export RUNSCRIPTS=${RUNSCRIPTS-}
   export DETACH=${DETACH-false}
   export CLEANUP=${CLEANUP-false}
@@ -26,11 +26,11 @@ if [[ -z $es_node_name ]]; then
   export es_node_name=instance
   export elastic_password=changeme
   export elasticsearch_image=elasticsearch
-  export elasticsearch_scheme="https"
-  if [[ $TEST_SUITE != "platinum" ]]; then
-    export elasticsearch_scheme="http"
+  export elasticsearch_url=https://elastic:${elastic_password}@${es_node_name}:9200
+  if [[ $TEST_SUITE != "xpack" ]]; then
+    export elasticsearch_image=elasticsearch-${TEST_SUITE}
+    export elasticsearch_url=http://${es_node_name}:9200
   fi
-  export elasticsearch_url=${elasticsearch_scheme}://elastic:${elastic_password}@${es_node_name}:9200
   export external_elasticsearch_url=${elasticsearch_url/$es_node_name/localhost}
   export elasticsearch_container="${elasticsearch_image}:${STACK_VERSION}"
 

.ci/jobs/defaults.yml

@@ -15,7 +15,7 @@
     parameters:
     - string:
         name: branch_specifier
-        default: refs/heads/main
+        default: refs/heads/master
         description: the Git branch specifier to build (<branchName>, <tagName>,
           <commitId>, etc.)
     properties:

.ci/jobs/elastic+elasticsearch-js+5.x.yml

@@ -0,0 +1,15 @@
+---
+- job:
+    name: elastic+elasticsearch-js+5.x
+    display-name: 'elastic / elasticsearch-js # 5.x'
+    description: Testing the elasticsearch-js 5.x branch.
+    junit_results: "*-junit.xml"
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/5.x
+        description: the Git branch specifier to build (<branchName>, <tagName>,
+          <commitId>, etc.)
+    triggers:
+    - github
+    - timed: '@weekly'

.ci/jobs/elastic+elasticsearch-js+6.x.yml

@@ -1,13 +1,13 @@
 ---
 - job:
-    name: elastic+elasticsearch-js+8.1
-    display-name: 'elastic / elasticsearch-js # 8.1'
-    description: Testing the elasticsearch-js 8.1 branch.
+    name: elastic+elasticsearch-js+6.x
+    display-name: 'elastic / elasticsearch-js # 6.x'
+    description: Testing the elasticsearch-js 6.x branch.
     junit_results: "*-junit.xml"
     parameters:
     - string:
         name: branch_specifier
-        default: refs/heads/8.1
+        default: refs/heads/6.x
         description: the Git branch specifier to build (<branchName>, <tagName>,
           <commitId>, etc.)
     triggers:

.ci/jobs/elastic+elasticsearch-js+7.9.yml

@@ -1,13 +1,13 @@
 ---
 - job:
-    name: elastic+elasticsearch-js+8.2
-    display-name: 'elastic / elasticsearch-js # 8.2'
-    description: Testing the elasticsearch-js 8.2 branch.
+    name: elastic+elasticsearch-js+7.9
+    display-name: 'elastic / elasticsearch-js # 7.9'
+    description: Testing the elasticsearch-js 7.9 branch.
     junit_results: "*-junit.xml"
     parameters:
     - string:
         name: branch_specifier
-        default: refs/heads/8.2
+        default: refs/heads/7.9
         description: the Git branch specifier to build (<branchName>, <tagName>,
           <commitId>, etc.)
     triggers:

.ci/jobs/elastic+elasticsearch-js+7.x.yml

@@ -1,13 +1,13 @@
 ---
 - job:
-    name: elastic+elasticsearch-js+7.17
-    display-name: 'elastic / elasticsearch-js # 7.17'
-    description: Testing the elasticsearch-js 7.17 branch.
+    name: elastic+elasticsearch-js+7.x
+    display-name: 'elastic / elasticsearch-js # 7.x'
+    description: Testing the elasticsearch-js 7.x branch.
     junit_results: "*-junit.xml"
     parameters:
     - string:
         name: branch_specifier
-        default: refs/heads/7.17
+        default: refs/heads/7.x
         description: the Git branch specifier to build (<branchName>, <tagName>,
           <commitId>, etc.)
     triggers:

.ci/jobs/elastic+elasticsearch-js+master.yml

@@ -1,13 +1,13 @@
 ---
 - job:
-    name: elastic+elasticsearch-js+main
-    display-name: 'elastic / elasticsearch-js # main'
-    description: Testing the elasticsearch-js main branch.
+    name: elastic+elasticsearch-js+master
+    display-name: 'elastic / elasticsearch-js # master'
+    description: Testing the elasticsearch-js master branch.
     junit_results: "*-junit.xml"
     parameters:
     - string:
         name: branch_specifier
-        default: refs/heads/main
+        default: refs/heads/master
         description: the Git branch specifier to build (<branchName>, <tagName>,
           <commitId>, etc.)
     triggers:

.ci/make.mjs

@@ -1,125 +0,0 @@
-/*
- * 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.
- */
-
-/* global $ argv */
-
-'use strict'
-
-import 'zx/globals'
-
-import { readFile, writeFile } from 'fs/promises'
-import assert from 'assert'
-import { join } from 'desm'
-import semver from 'semver'
-
-assert(typeof argv.task === 'string', 'Missing task parameter')
-
-switch (argv.task) {
-  case 'release':
-    release(argv._).catch(onError)
-    break
-  case 'bump':
-    bump(argv._).catch(onError)
-    break
-  case 'codegen':
-    codegen(argv._).catch(onError)
-    break
-  default:
-    console.log(`Unknown task: ${argv.task}`)
-    process.exit(1)
-}
-
-async function release (args) {
-  assert(args.length === 2, 'Release task expects two parameters')
-  let [version, outputFolder] = args
-
-  if (process.env.WORKFLOW === 'snapshot' && !version.endsWith('SNAPSHOT')) {
-    version = `${version}-SNAPSHOT`
-  }
-
-  await bump([version])
-
-  const packageJson = JSON.parse(await readFile(
-    join(import.meta.url, '..', 'package.json'),
-    'utf8'
-  ))
-
-  await $`npm run build`
-  await $`npm pack`
-  await $`zip elasticsearch-js-${version}.zip elastic-elasticsearch-${packageJson.version}.tgz`
-  await $`rm elastic-elasticsearch-${packageJson.version}.tgz`
-  await $`mv ${join(import.meta.url, '..', `elasticsearch-js-${version}.zip`)} ${join(import.meta.url, '..', outputFolder, `elasticsearch-js-${version}.zip`)}`
-}
-
-async function bump (args) {
-  assert(args.length === 1, 'Bump task expects one parameter')
-  const [version] = args
-  const packageJson = JSON.parse(await readFile(
-    join(import.meta.url, '..', 'package.json'),
-    'utf8'
-  ))
-
-  const cleanVersion = semver.clean(version.includes('SNAPSHOT') ? version.split('-')[0] : version)
-  assert(semver.valid(cleanVersion))
-  packageJson.version = cleanVersion
-  packageJson.versionCanary = `${cleanVersion}-canary.0`
-
-  await writeFile(
-    join(import.meta.url, '..', 'package.json'),
-    JSON.stringify(packageJson, null, 2),
-    'utf8'
-  )
-
-  const testMatrix = await readFile(join(import.meta.url, 'test-matrix.yml'), 'utf8')
-  await writeFile(
-    join(import.meta.url, 'test-matrix.yml'),
-    testMatrix.replace(/STACK_VERSION:\s+\- "[0-9]+[0-9\.]*[0-9](?:\-SNAPSHOT)?"/, `STACK_VERSION:\n  - "${cleanVersion}-SNAPSHOT"`), // eslint-disable-line
-    'utf8'
-  )
-}
-
-// this command can only be executed locally for now
-async function codegen (args) {
-  assert(args.length === 1, 'Bump task expects one parameter')
-  const clientGeneratorPath = join(import.meta.url, '..', '..', 'elastic-client-generator-js')
-  const [version] = args
-
-  const isGeneratorCloned = await $`[[ -d ${clientGeneratorPath} ]]`.exitCode === 0
-  assert(isGeneratorCloned, 'You must clone the elastic-client-generator-js first')
-
-  await $`npm install --prefix ${clientGeneratorPath}`
-  // this command will take a while!
-  if (version === 'main') {
-    await $`npm run elasticsearch --prefix ${clientGeneratorPath} -- --version main`
-  } else {
-    await $`npm run elasticsearch --prefix ${clientGeneratorPath} -- --version ${version.split('.').slice(0, 2).join('.')}`
-  }
-  await $`npm run lint --prefix ${clientGeneratorPath}`
-
-  await $`rm -rf ${join(import.meta.url, '..', 'src', 'api')}`
-  await $`mkdir ${join(import.meta.url, '..', 'src', 'api')}`
-  await $`cp -R ${join(import.meta.url, '..', '..', 'elastic-client-generator-js', 'output')}/* ${join(import.meta.url, '..', 'src', 'api')}`
-  await $`mv ${join(import.meta.url, '..', 'src', 'api', 'reference.asciidoc')} ${join(import.meta.url, '..', 'docs', 'reference.asciidoc')}`
-  await $`npm run build`
-}
-
-function onError (err) {
-  console.log(err)
-  process.exit(1)
-}

.ci/make.sh

@@ -1,180 +0,0 @@
-#!/usr/bin/env bash
-
-# ------------------------------------------------------- #
-#
-# Skeleton for common build entry script for all elastic
-# clients. Needs to be adapted to individual client usage.
-#
-# Must be called: ./.ci/make.sh <target> <params>
-#
-# Version: 1.1.0
-#
-# Targets:
-# ---------------------------
-# assemble <VERSION> : build client artefacts with version
-# bump     <VERSION> : bump client internals to version
-# codegen  <VERSION> : generate endpoints
-# docsgen  <VERSION> : generate documentation
-# examplegen         : generate the doc examples
-# clean              : clean workspace
-#
-# ------------------------------------------------------- #
-
-# ------------------------------------------------------- #
-# Bootstrap
-# ------------------------------------------------------- #
-
-script_path=$(dirname "$(realpath -s "$0")")
-repo=$(realpath "$script_path/../")
-generator=$(realpath "$script_path/../../elastic-client-generator-js")
-
-# shellcheck disable=SC1090
-CMD=$1
-TASK=$1
-TASK_ARGS=()
-VERSION=$2
-STACK_VERSION=$VERSION
-NODE_JS_VERSION=16
-WORKFLOW=${WORKFLOW-staging}
-set -euo pipefail
-
-product="elastic/elasticsearch-js"
-output_folder=".ci/output"
-OUTPUT_DIR="$repo/${output_folder}"
-REPO_BINDING="${OUTPUT_DIR}:/sln/${output_folder}"
-mkdir -p "$OUTPUT_DIR"
-
-echo -e "\033[34;1mINFO:\033[0m PRODUCT ${product}\033[0m"
-echo -e "\033[34;1mINFO:\033[0m VERSION ${STACK_VERSION}\033[0m"
-echo -e "\033[34;1mINFO:\033[0m OUTPUT_DIR ${OUTPUT_DIR}\033[0m"
-
-# ------------------------------------------------------- #
-# Parse Command
-# ------------------------------------------------------- #
-
-case $CMD in
-    clean)
-        echo -e "\033[36;1mTARGET: clean workspace $output_folder\033[0m"
-        rm -rf "$output_folder"
-        echo -e "\033[32;1mdone.\033[0m"
-        exit 0
-        ;;
-    assemble)
-        if [ -v $VERSION ]; then
-            echo -e "\033[31;1mTARGET: assemble -> missing version parameter\033[0m"
-            exit 1
-        fi
-        echo -e "\033[36;1mTARGET: assemble artefact $VERSION\033[0m"
-        TASK=release
-        TASK_ARGS=("$VERSION" "$output_folder")
-        ;;
-    codegen)
-        if [ -v $VERSION ]; then
-            echo -e "\033[31;1mTARGET: codegen -> missing version parameter\033[0m"
-            exit 1
-        fi
-        echo -e "\033[36;1mTARGET: codegen API v$VERSION\033[0m"
-        TASK=codegen
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION")
-        ;;
-    docsgen)
-        if [ -v $VERSION ]; then
-            echo -e "\033[31;1mTARGET: docsgen -> missing version parameter\033[0m"
-            exit 1
-        fi
-        echo -e "\033[36;1mTARGET: generate docs for $VERSION\033[0m"
-        TASK=codegen
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION" "$codegen_folder")
-        ;;
-    examplesgen)
-        echo -e "\033[36;1mTARGET: generate examples\033[0m"
-        TASK=codegen
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION" "$codegen_folder")
-        ;;
-    bump)
-        if [ -v $VERSION ]; then
-            echo -e "\033[31;1mTARGET: bump -> missing version parameter\033[0m"
-            exit 1
-        fi
-        echo -e "\033[36;1mTARGET: bump to version $VERSION\033[0m"
-        TASK=bump
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION")
-        ;;
-    *)
-        echo -e "\nUsage:\n\t $CMD is not supported right now\n"
-        exit 1
-esac
-
-
-# ------------------------------------------------------- #
-# Build Container
-# ------------------------------------------------------- #
-
-echo -e "\033[34;1mINFO: building $product container\033[0m"
-
-docker build \
-  --file .ci/Dockerfile \
-  --tag ${product} \
-  --build-arg NODE_JS_VERSION=${NODE_JS_VERSION} \
-  --build-arg USER_ID="$(id -u)" \
-  --build-arg GROUP_ID="$(id -g)" \
-  .
-
-# ------------------------------------------------------- #
-# Run the Container
-# ------------------------------------------------------- #
-
-echo -e "\033[34;1mINFO: running $product container\033[0m"
-
-docker run \
-  --volume $repo:/usr/src/app \
-  --volume $generator:/usr/src/elastic-client-generator-js \
-  --volume /usr/src/app/node_modules \
-  --env "WORKFLOW=${WORKFLOW}" \
-  --name make-elasticsearch-js \
-  --rm \
-  $product \
-  node .ci/make.mjs --task $TASK ${TASK_ARGS[*]}
-
-# ------------------------------------------------------- #
-# Post Command tasks & checks
-# ------------------------------------------------------- #
-
-if [[ "$CMD" == "assemble" ]]; then
-	if compgen -G ".ci/output/*" > /dev/null; then
-		echo -e "\033[32;1mTARGET: successfully assembled client v$VERSION\033[0m"
-	else
-		echo -e "\033[31;1mTARGET: assemble failed, empty workspace!\033[0m"
-		exit 1
-	fi
-fi
-
-if [[ "$CMD" == "bump" ]]; then
-  if [ -n "$(git status --porcelain)" ]; then 
-		echo -e "\033[32;1mTARGET: successfully bumped client v$VERSION\033[0m"
-  else 
-		echo -e "\033[31;1mTARGET: failed bumped client v$VERSION\033[0m"
-    exit 1
-  fi
-fi
-
-if [[ "$CMD" == "codegen" ]]; then
-  if [ -n "$(git status --porcelain)" ]; then 
-		echo -e "\033[32;1mTARGET: successfully generated client v$VERSION\033[0m"
-  else 
-		echo -e "\033[31;1mTARGET: failed generating client v$VERSION\033[0m"
-    exit 1
-  fi
-fi
-
-if [[ "$CMD" == "docsgen" ]]; then
-    echo "TODO"
-fi
-
-if [[ "$CMD" == "examplesgen" ]]; then
-    echo "TODO"
-fi

.ci/packer_cache.sh

@@ -2,9 +2,10 @@
 
 source /usr/local/bin/bash_standard_lib.sh
 
-DOCKER_IMAGES="node:17-alpine
-node:16-alpine
-node:14-alpine
+DOCKER_IMAGES="node:14-alpine
+node:12-alpine
+node:10-alpine
+node:8-alpine
 "
 
 for di in ${DOCKER_IMAGES}

.ci/run-elasticsearch.sh

@@ -4,10 +4,10 @@
 # to form a cluster suitable for running the REST API tests.
 #
 # Export the STACK_VERSION variable, eg. '8.0.0-SNAPSHOT'.
-# Export the TEST_SUITE variable, eg. 'free' or 'platinum' defaults to 'free'.
+# Export the TEST_SUITE variable, eg. 'oss' or 'xpack' defaults to 'oss'.
 # Export the NUMBER_OF_NODES variable to start more than 1 node
 
-# Version 1.6.1
+# Version 1.2.0
 # - Initial version of the run-elasticsearch.sh script
 # - Deleting the volume should not dependent on the container still running
 # - Fixed `ES_JAVA_OPTS` config
@@ -15,12 +15,6 @@
 # - Refactored into functions and imports
 # - Support NUMBER_OF_NODES
 # - Added 5 retries on docker pull for fixing transient network errors
-# - Added flags to make local CCR configurations work
-# - Added action.destructive_requires_name=false as the default will be true in v8
-# - Added ingest.geoip.downloader.enabled=false as it causes false positives in testing
-# - Moved ELASTIC_PASSWORD and xpack.security.enabled to the base arguments for "Security On by default"
-# - Use https only when TEST_SUITE is "platinum", when "free" use http
-# - Set xpack.security.enabled=false for "free" and xpack.security.enabled=true for "platinum"
 
 script_path=$(dirname $(realpath -s $0))
 source $script_path/functions/imports.sh
@@ -34,7 +28,6 @@ cluster_name=${moniker}${suffix}
 
 declare -a volumes
 environment=($(cat <<-END
-  --env ELASTIC_PASSWORD=$elastic_password
   --env node.name=$es_node_name
   --env cluster.name=$cluster_name
   --env cluster.initial_master_nodes=$master_node_name
@@ -44,22 +37,19 @@ environment=($(cat <<-END
   --env node.attr.testattr=test
   --env path.repo=/tmp
   --env repositories.url.allowed_urls=http://snapshot.test*
-  --env action.destructive_requires_name=false
-  --env ingest.geoip.downloader.enabled=false
-  --env cluster.deprecation_indexing.enabled=false
 END
 ))
-if [[ "$TEST_SUITE" == "platinum" ]]; then
+if [[ "$TEST_SUITE" == "xpack" ]]; then
   environment+=($(cat <<-END
-    --env xpack.security.enabled=true
+    --env ELASTIC_PASSWORD=$elastic_password
     --env xpack.license.self_generated.type=trial
+    --env xpack.security.enabled=true
     --env xpack.security.http.ssl.enabled=true
     --env xpack.security.http.ssl.verification_mode=certificate
     --env xpack.security.http.ssl.key=certs/testnode.key
     --env xpack.security.http.ssl.certificate=certs/testnode.crt
     --env xpack.security.http.ssl.certificate_authorities=certs/ca.crt
     --env xpack.security.transport.ssl.enabled=true
-    --env xpack.security.transport.ssl.verification_mode=certificate
     --env xpack.security.transport.ssl.key=certs/testnode.key
     --env xpack.security.transport.ssl.certificate=certs/testnode.crt
     --env xpack.security.transport.ssl.certificate_authorities=certs/ca.crt
@@ -71,16 +61,10 @@ END
     --volume $ssl_ca:/usr/share/elasticsearch/config/certs/ca.crt
 END
 ))
-else
-  environment+=($(cat <<-END
-    --env xpack.security.enabled=false
-    --env xpack.security.http.ssl.enabled=false
-END
-))
 fi
 
 cert_validation_flags=""
-if [[ "$TEST_SUITE" == "platinum" ]]; then
+if [[ "$TEST_SUITE" == "xpack" ]]; then
   cert_validation_flags="--insecure --cacert /usr/share/elasticsearch/config/certs/ca.crt --resolve ${es_node_name}:443:127.0.0.1"
 fi
 
@@ -120,7 +104,7 @@ END
   docker run \
     --name "$node_name" \
     --network "$network_name" \
-    --env "ES_JAVA_OPTS=-Xms1g -Xmx1g -da:org.elasticsearch.xpack.ccr.index.engine.FollowingEngineAssertions" \
+    --env "ES_JAVA_OPTS=-Xms1g -Xmx1g" \
     "${environment[@]}" \
     "${volumes[@]}" \
     --publish "$http_port":9200 \

.ci/run-repository.sh

@@ -2,14 +2,14 @@
 # parameters are available to this script
 
 # STACK_VERSION -- version e.g Major.Minor.Patch(-Prelease)
-# TEST_SUITE -- which test suite to run: free or platinum
+# TEST_SUITE -- which test suite to run: oss or xpack
 # ELASTICSEARCH_URL -- The url at which elasticsearch is reachable, a default is composed based on STACK_VERSION and TEST_SUITE
 # NODE_JS_VERSION -- node js version (defined in test-matrix.yml, a default is hardcoded here)
 script_path=$(dirname $(realpath -s $0))
 source $script_path/functions/imports.sh
 set -euo pipefail
 
-NODE_JS_VERSION=${NODE_JS_VERSION-16}
+NODE_JS_VERSION=${NODE_JS_VERSION-12}
 ELASTICSEARCH_URL=${ELASTICSEARCH_URL-"$elasticsearch_url"}
 elasticsearch_container=${elasticsearch_container-}
 
@@ -30,14 +30,17 @@ docker build \
 echo -e "\033[1m>>>>> NPM run test:integration >>>>>>>>>>>>>>>>>>>>>>>>>>>>>\033[0m"
 
 repo=$(realpath $(dirname $(realpath -s $0))/../)
+run_script_args=""
+if [[ "$NODE_JS_VERSION" == "8" ]]; then
+  run_script_args="--harmony-async-iteration"
+fi
 
 docker run \
   --network=${network_name} \
   --env "TEST_ES_SERVER=${ELASTICSEARCH_URL}" \
-  --env "TEST_SUITE=${TEST_SUITE}" \
   --volume $repo:/usr/src/app \
   --volume /usr/src/app/node_modules \
   --name elasticsearch-js \
   --rm \
   elastic/elasticsearch-js \
-  npm run test:integration
+  node ${run_script_args} test/integration/index.js

.ci/test-matrix.yml

@@ -1,14 +1,15 @@
 ---
 STACK_VERSION:
-  - "8.6.0-SNAPSHOT"
+  - 8.0.0-SNAPSHOT
 
 NODE_JS_VERSION:
-  - 18
-  - 16
   - 14
+  - 12
+  - 10
+  - 8
 
 TEST_SUITE:
-  - free
-  - platinum
+  - oss
+  - xpack
 
 exclude: ~

.github/ISSUE_TEMPLATE/regression.md

@@ -51,6 +51,5 @@ Paste the results here:
 
 - *node version*: 6,8,10
 - `@elastic/elasticsearch` *version*: >=7.0.0
-- *typescript version*: 4.x (if applicable)
 - *os*: Mac, Windows, Linux
 - *any other relevant information*

.github/workflows/nodejs.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x]
+        node-version: [10.x, 12.x, 14.x]
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
@@ -32,143 +32,133 @@ jobs:
       run: |
         npm run test:unit
 
-    # - name: Acceptance test
-    #   run: |
-    #     npm run test:acceptance
+    - name: Acceptance test
+      run: |
+        npm run test:acceptance
 
-  # helpers-integration-test:
-  #   name: Helpers integration test
-  #   runs-on: ubuntu-latest
+    - name: Type Definitions
+      run: |
+        npm run test:types
 
-  #   strategy:
-  #     matrix:
-  #       node-version: [12.x, 14.x, 16.x]
+  dsl:
+    name: DSL
+    runs-on: ${{ matrix.os }}
 
-  #   steps:
-  #   - uses: actions/checkout@v2
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
 
-  #   - name: Configure sysctl limits
-  #     run: |
-  #       sudo swapoff -a
-  #       sudo sysctl -w vm.swappiness=1
-  #       sudo sysctl -w fs.file-max=262144
-  #       sudo sysctl -w vm.max_map_count=262144
+    steps:
+    - uses: actions/checkout@v2
 
-  #   - name: Runs Elasticsearch
-  #     uses: elastic/elastic-github-actions/elasticsearch@master
-  #     with:
-  #       stack-version: 8.0.0-SNAPSHOT
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
 
-  #   - name: Use Node.js ${{ matrix.node-version }}
-  #     uses: actions/setup-node@v1
-  #     with:
-  #       node-version: ${{ matrix.node-version }}
+    - name: Install
+      run: |
+        npm install
 
-  #   - name: Install
-  #     run: |
-  #       npm install
+    - name: Test
+      run: |
+        npm run test:dsl
 
-  #   - name: Integration test
-  #     run: |
-  #       npm run test:integration:helpers
+  test-node-v8:
+    name: Test
+    runs-on: ${{ matrix.os }}
 
-  # bundler-support:
-  #   name: Bundler support
-  #   runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [8.x]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
 
-  #   steps:
-  #   - uses: actions/checkout@v2
+    steps:
+    - uses: actions/checkout@v2
 
-  #   - name: Configure sysctl limits
-  #     run: |
-  #       sudo swapoff -a
-  #       sudo sysctl -w vm.swappiness=1
-  #       sudo sysctl -w fs.file-max=262144
-  #       sudo sysctl -w vm.max_map_count=262144
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
 
-  #   - name: Runs Elasticsearch
-  #     uses: elastic/elastic-github-actions/elasticsearch@master
-  #     with:
-  #       stack-version: 8.0.0-SNAPSHOT
+    - name: Install
+      run: |
+        npm install
 
-  #   - name: Use Node.js 14.x
-  #     uses: actions/setup-node@v1
-  #     with:
-  #       node-version: 14.x
+    - name: Test
+      run: |
+        npm run test:node8
 
-  #   - name: Install
-  #     run: |
-  #       npm install
-  #       npm install --prefix test/bundlers/parcel-test
-  #       npm install --prefix test/bundlers/rollup-test
-  #       npm install --prefix test/bundlers/webpack-test
+  helpers-integration-test:
+    name: Helpers integration test
+    runs-on: ubuntu-latest
 
-  #   - name: Build
-  #     run: |
-  #       npm run build --prefix test/bundlers/parcel-test
-  #       npm run build --prefix test/bundlers/rollup-test
-  #       npm run build --prefix test/bundlers/webpack-test
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
 
-  #   - name: Run bundle
-  #     run: |
-  #       npm start --prefix test/bundlers/parcel-test
-  #       npm start --prefix test/bundlers/rollup-test
-  #       npm start --prefix test/bundlers/webpack-test
+    steps:
+    - uses: actions/checkout@v2
 
-  # mock-support:
-  #   name: Mock support
-  #   runs-on: ubuntu-latest
+    - name: Configure sysctl limits
+      run: |
+        sudo swapoff -a
+        sudo sysctl -w vm.swappiness=1
+        sudo sysctl -w fs.file-max=262144
+        sudo sysctl -w vm.max_map_count=262144
 
-  #   steps:
-  #   - uses: actions/checkout@v2
+    - name: Runs Elasticsearch
+      uses: elastic/elastic-github-actions/elasticsearch@master
+      with:
+        stack-version: 8.0.0-SNAPSHOT
 
-  #   - name: Use Node.js 14.x
-  #     uses: actions/setup-node@v1
-  #     with:
-  #       node-version: 14.x
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
 
-  #   - name: Install
-  #     run: |
-  #       npm install
-  #       npm install --prefix test/mock
+    - name: Install
+      run: |
+        npm install
 
-  #   - name: Run test
-  #     run: |
-  #       npm test --prefix test/mock
+    - name: Integration test
+      run: |
+        npm run test:integration:helpers
 
-  # code-coverage:
-  #   name: Code coverage
-  #   runs-on: ubuntu-latest
+  code-coverage:
+    name: Code coverage
+    runs-on: ubuntu-latest
 
-  #   strategy:
-  #     matrix:
-  #       node-version: [14.x]
+    strategy:
+      matrix:
+        node-version: [12.x]
 
-  #   steps:
-  #   - uses: actions/checkout@v2
+    steps:
+    - uses: actions/checkout@v2
 
-  #   - name: Use Node.js ${{ matrix.node-version }}
-  #     uses: actions/setup-node@v1
-  #     with:
-  #       node-version: ${{ matrix.node-version }}
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
 
-  #   - name: Install
-  #     run: |
-  #       npm install
+    - name: Install
+      run: |
+        npm install
 
-  #   - name: Code coverage report
-  #     run: |
-  #       npm run test:coverage-report
+    - name: Code coverage report
+      run: |
+        npm run test:coverage-report
 
-  #   - name: Upload coverage to Codecov
-  #     uses: codecov/codecov-action@v1
-  #     with:
-  #       file: ./coverage.lcov
-  #       fail_ci_if_error: true
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v1
+      with:
+        file: ./coverage.lcov
+        fail_ci_if_error: true
 
-  #   - name: Code coverage 100%
-  #     run: |
-  #       npm run test:coverage-100
+    - name: Code coverage 100%
+      run: |
+        npm run test:coverage-100
 
   license:
     name: License check
@@ -176,7 +166,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x]
+        node-version: [12.x]
 
     steps:
     - uses: actions/checkout@v2

.gitignore

@@ -57,9 +57,4 @@ test/benchmarks/macro/fixtures/*
 
 *-junit.xml
 
-.cache
-
-test/bundlers/**/bundle.js
-test/bundlers/parcel-test/.parcel-cache
-
-lib
+dsl/lib

.npmignore

@@ -71,4 +71,6 @@ certs
 CODE_OF_CONDUCT.md
 CONTRIBUTING.md
 
-src
+dsl/src
+dsl/examples
+dsl/tsconfig.json

CHANGELOG.md

@@ -1,3 +0,0 @@
-303 See Other
-
-Location: https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/changelog-client.html

NOTICE.txt

@@ -1,2 +0,0 @@
-Elasticsearch JavaScript Client
-Copyright 2022 Elasticsearch B.V.

README.md

@@ -2,10 +2,16 @@
 
 # Elasticsearch Node.js client
 
-[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](http://standardjs.com/)  [![Build Status](https://clients-ci.elastic.co/buildStatus/icon?job=elastic%2Belasticsearch-js%2Bmain)](https://clients-ci.elastic.co/view/JavaScript/job/elastic+elasticsearch-js+main/)  [![Node CI](https://github.com/elastic/elasticsearch-js/actions/workflows/nodejs.yml/badge.svg)](https://github.com/elastic/elasticsearch-js/actions/workflows/nodejs.yml)  [![codecov](https://codecov.io/gh/elastic/elasticsearch-js/branch/master/graph/badge.svg)](https://codecov.io/gh/elastic/elasticsearch-js)  [![NPM downloads](https://img.shields.io/npm/dm/@elastic/elasticsearch.svg?style=flat)](https://www.npmjs.com/package/@elastic/elasticsearch)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](http://standardjs.com/)  [![Build Status](https://clients-ci.elastic.co/buildStatus/icon?job=elastic%2Belasticsearch-js%2Bmaster)](https://clients-ci.elastic.co/view/Javascript/job/elastic+elasticsearch-js+master/)  [![codecov](https://codecov.io/gh/elastic/elasticsearch-js/branch/master/graph/badge.svg)](https://codecov.io/gh/elastic/elasticsearch-js)  [![NPM downloads](https://img.shields.io/npm/dm/@elastic/elasticsearch.svg?style=flat)](https://www.npmjs.com/package/@elastic/elasticsearch)
 
 The official Node.js client for Elasticsearch.
 
+---
+
+**Note:** In the past months we have worked on the new Elasticsearch Node.js client and you can use it by following the instructions below. If you're going to use the legacy one or report an issue, however, please check out [elastic/elasticsearch-js-legacy](https://github.com/elastic/elasticsearch-js-legacy).
+
+---
+
 ## Features
 - One-to-one mapping with REST API.
 - Generalized, pluggable architecture.
@@ -20,42 +26,15 @@ The official Node.js client for Elasticsearch.
 npm install @elastic/elasticsearch
 ```
 
-### Node.js support
-
-NOTE: The minimum supported version of Node.js is `v14`.
-
-The client versioning follows the Elastic Stack versioning, this means that
-major, minor, and patch releases are done following a precise schedule that
-often does not coincide with the [Node.js release](https://nodejs.org/en/about/releases/) times.
-
-To avoid support insecure and unsupported versions of Node.js, the
-client **will drop the support of EOL versions of Node.js between minor releases**.
-Typically, as soon as a Node.js version goes into EOL, the client will continue
-to support that version for at least another minor release. If you are using the client
-with a version of Node.js that will be unsupported soon, you will see a warning
-in your logs (the client will start logging the warning with two minors in advance).
-
-Unless you are **always** using a supported version of Node.js, 
-we recommend defining the client dependency in your
-`package.json` with the `~` instead of `^`. In this way, you will lock the
-dependency on the minor release and not the major. (for example, `~7.10.0` instead
-of `^7.10.0`).
-
-| Node.js Version | Node.js EOL date | End of support         |
-| --------------- |------------------| ---------------------- |
-| `8.x`           | `December 2019`  | `7.11` (early 2021)    |
-| `10.x`          | `April 2021`     | `7.12` (mid 2021)      |
-| `12.x`          | `April 2022`     | `8.2` (early 2022)     |
-| `14.x`          | `April 2023`     | `8.8` (early 2023)     |
-
 ### Compatibility
 
-Language clients are forward compatible; meaning that clients support communicating with greater or equal minor versions of Elasticsearch.
-Elasticsearch language clients are only backwards compatible with default distributions and without guarantees made.
+The minimum supported version of Node.js is `v8`.
+
+The library is compatible with all Elasticsearch versions since 5.x, and you should use the same major version of the Elasticsearch instance that you are using.
 
 | Elasticsearch Version | Client Version |
 | --------------------- |----------------|
-| `8.x`                 | `8.x`          |
+| `master`              | `master`       |
 | `7.x`                 | `7.x`          |
 | `6.x`                 | `6.x`          |
 | `5.x`                 | `5.x`          |
@@ -68,17 +47,19 @@ npm install @elastic/elasticsearch@<major>
 #### Browser
 
 WARNING: There is no official support for the browser environment. It exposes your Elasticsearch instance to everyone, which could lead to security issues.
-We recommend that you write a lightweight proxy that uses this client instead, you can see a proxy example [here](./docs/examples/proxy).
+We recommend that you write a lightweight proxy that uses this client instead.
 
 ## Documentation
 
 - [Introduction](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/introduction.html)
-- [Usage](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-connecting.html#client-usage)
+- [Usage](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-usage.html)
 - [Client configuration](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-configuration.html)
 - [API reference](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/api-reference.html)
-- [Authentication](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-connecting.html#authentication)
+- [Breaking changes coming from the old client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/breaking-changes.html)
+- [Authentication](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/auth-reference.html)
 - [Observability](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/observability.html)
-- [Creating a child client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/child.html)
+- [Creating a child client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/child-client.html)
+- [Extend the client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/extend-client.html)
 - [Client helpers](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-helpers.html)
 - [Typescript support](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/typescript.html)
 - [Testing](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-testing.html)
@@ -86,20 +67,60 @@ We recommend that you write a lightweight proxy that uses this client instead, y
 
 ## Quick start
 
+First of all, require the client and initialize it:
+```js
+const { Client } = require('@elastic/elasticsearch')
+const client = new Client({ node: 'http://localhost:9200' })
+```
+
+You can use both the callback-style API and the promise-style API, both behave the same way.
+```js
+// promise API
+const result = await client.search({
+  index: 'my-index',
+  body: {
+    query: {
+      match: { hello: 'world' }
+    }
+  }
+})
+
+// callback API
+client.search({
+  index: 'my-index',
+  body: {
+    query: {
+      match: { hello: 'world' }
+    }
+  }
+}, (err, result) => {
+  if (err) console.log(err)
+})
+```
+The returned value of **every** API call is formed as follows:
+```ts
+{
+  body: object | boolean
+  statusCode: number
+  headers: object
+  warnings: [string]
+  meta: object
+}
+```
+
+Let's see a complete example!
 ```js
 'use strict'
 
 const { Client } = require('@elastic/elasticsearch')
-const client = new Client({
-  cloud: { id: '<cloud-id>' },
-  auth: { apiKey: 'base64EncodedKey' }
-})
+const client = new Client({ node: 'http://localhost:9200' })
 
 async function run () {
   // Let's start by indexing some data
   await client.index({
     index: 'game-of-thrones',
-    document: {
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
       character: 'Ned Stark',
       quote: 'Winter is coming.'
     }
@@ -107,7 +128,8 @@ async function run () {
 
   await client.index({
     index: 'game-of-thrones',
-    document: {
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
       character: 'Daenerys Targaryen',
       quote: 'I am the blood of the dragon.'
     }
@@ -115,7 +137,8 @@ async function run () {
 
   await client.index({
     index: 'game-of-thrones',
-    document: {
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
       character: 'Tyrion Lannister',
       quote: 'A mind needs books like a sword needs a whetstone.'
     }
@@ -126,14 +149,17 @@ async function run () {
   await client.indices.refresh({ index: 'game-of-thrones' })
 
   // Let's search!
-  const result= await client.search({
+  const { body } = await client.search({
     index: 'game-of-thrones',
-    query: {
-      match: { quote: 'winter' }
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      query: {
+        match: { quote: 'winter' }
+      }
     }
   })
 
-  console.log(result.hits.hits)
+  console.log(body.hits.hits)
 }
 
 run().catch(console.log)
@@ -163,24 +189,18 @@ You will require the packages from your code by using the alias you have defined
 const { Client: Client6 } = require('es6')
 const { Client: Client7 } = require('es7')
 
-const client6 = new Client6({
-  cloud: { id: '<cloud-id>' },
-  auth: { apiKey: 'base64EncodedKey' }
-})
-const client7 = new Client7({
-  cloud: { id: '<cloud-id>' },
-  auth: { apiKey: 'base64EncodedKey' }
-})
+const client6 = new Client6({ node: 'http://localhost:9200' })
+const client7 = new Client7({ node: 'http://localhost:9201' })
 
-client6.info().then(console.log, console.log)
-client7.info().then(console.log, console.log)
+client6.info(console.log)
+client7.info(console.log)
 ```
 
-Finally, if you want to install the client for the next version of Elasticsearch *(the one that lives in Elasticsearch’s main branch)*, you can use the following command:
+Finally, if you want to install the client for the next version of Elasticsearch *(the one that lives in Elasticsearch’s master branch)*, you can use the following command:
 ```sh
-npm install esmain@github:elastic/elasticsearch-js
+npm install esmaster@github:elastic/elasticsearch-js
 ```
 
 ## License
 
-This software is licensed under the [Apache License 2.0](./LICENSE).
+This software is licensed under the [Apache 2 license](./LICENSE).

api/api/async_search.delete.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildAsyncSearchDelete (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a async_search.delete request
+   * Deletes an async search by ID. If the search is still running, the search request will be cancelled. Otherwise, the saved search results are deleted.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/async-search.html
+   */
+  return function asyncSearchDelete (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_async_search' + '/' + encodeURIComponent(id)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildAsyncSearchDelete

api/api/async_search.get.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildAsyncSearchGet (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_completion_timeout',
+    'keep_alive',
+    'typed_keys'
+  ]
+
+  const snakeCase = {
+    waitForCompletionTimeout: 'wait_for_completion_timeout',
+    keepAlive: 'keep_alive',
+    typedKeys: 'typed_keys'
+  }
+
+  /**
+   * Perform a async_search.get request
+   * Retrieves the results of a previously submitted async search request given its ID.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/async-search.html
+   */
+  return function asyncSearchGet (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_async_search' + '/' + encodeURIComponent(id)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildAsyncSearchGet

api/api/async_search.submit.js

@@ -0,0 +1,162 @@
+/*
+ * 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 */
+
+function buildAsyncSearchSubmit (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_completion_timeout',
+    'keep_on_completion',
+    'keep_alive',
+    'batched_reduce_size',
+    'request_cache',
+    'analyzer',
+    'analyze_wildcard',
+    'default_operator',
+    'df',
+    'explain',
+    'stored_fields',
+    'docvalue_fields',
+    'from',
+    'ignore_unavailable',
+    'ignore_throttled',
+    'allow_no_indices',
+    'expand_wildcards',
+    'lenient',
+    'preference',
+    'q',
+    'routing',
+    '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',
+    'max_concurrent_shard_requests'
+  ]
+
+  const snakeCase = {
+    waitForCompletionTimeout: 'wait_for_completion_timeout',
+    keepOnCompletion: 'keep_on_completion',
+    keepAlive: 'keep_alive',
+    batchedReduceSize: 'batched_reduce_size',
+    requestCache: 'request_cache',
+    analyzeWildcard: 'analyze_wildcard',
+    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',
+    maxConcurrentShardRequests: 'max_concurrent_shard_requests'
+  }
+
+  /**
+   * Perform a async_search.submit request
+   * Executes a search request asynchronously.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/async-search.html
+   */
+  return function asyncSearchSubmit (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = 'POST'
+      path = '/' + encodeURIComponent(index) + '/' + '_async_search'
+    } else {
+      if (method == null) method = 'POST'
+      path = '/' + '_async_search'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildAsyncSearchSubmit

api/api/autoscaling.delete_autoscaling_policy.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildAutoscalingDeleteAutoscalingPolicy (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a autoscaling.delete_autoscaling_policy request
+   * Deletes an autoscaling policy.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-delete-autoscaling-policy.html
+   */
+  return function autoscalingDeleteAutoscalingPolicy (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_autoscaling' + '/' + 'policy' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildAutoscalingDeleteAutoscalingPolicy

api/api/autoscaling.get_autoscaling_decision.js

@@ -0,0 +1,87 @@
+/*
+ * 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 */
+
+function buildAutoscalingGetAutoscalingDecision (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a autoscaling.get_autoscaling_decision request
+   * Gets the current autoscaling decision based on the configured autoscaling policy, indicating whether or not autoscaling is needed.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-get-autoscaling-decision.html
+   */
+  return function autoscalingGetAutoscalingDecision (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_autoscaling' + '/' + 'decision'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildAutoscalingGetAutoscalingDecision

api/api/autoscaling.get_autoscaling_policy.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildAutoscalingGetAutoscalingPolicy (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a autoscaling.get_autoscaling_policy request
+   * Retrieves an autoscaling policy.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-get-autoscaling-policy.html
+   */
+  return function autoscalingGetAutoscalingPolicy (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_autoscaling' + '/' + 'policy' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildAutoscalingGetAutoscalingPolicy

api/api/autoscaling.put_autoscaling_policy.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildAutoscalingPutAutoscalingPolicy (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a autoscaling.put_autoscaling_policy request
+   * Creates a new autoscaling policy.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/autoscaling-put-autoscaling-policy.html
+   */
+  return function autoscalingPutAutoscalingPolicy (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'PUT'
+    path = '/' + '_autoscaling' + '/' + 'policy' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildAutoscalingPutAutoscalingPolicy

api/api/bulk.js

@@ -0,0 +1,130 @@
+/*
+ * 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 */
+
+function buildBulk (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards',
+    'refresh',
+    'routing',
+    'timeout',
+    'type',
+    '_source',
+    '_source_excludes',
+    '_source_exclude',
+    '_source_includes',
+    '_source_include',
+    'pipeline',
+    'require_alias',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards',
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    requireAlias: 'require_alias',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a bulk request
+   * Allows to perform multiple index/update/delete operations in a single request.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-bulk.html
+   */
+  return function bulk (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // check required url components
+    if (params['type'] != null && (params['index'] == null)) {
+      const err = new ConfigurationError('Missing required parameter of the url: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, type, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null) {
+      if (method == null) method = 'POST'
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_bulk'
+    } else if ((index) != null) {
+      if (method == null) method = 'POST'
+      path = '/' + encodeURIComponent(index) + '/' + '_bulk'
+    } else {
+      if (method == null) method = 'POST'
+      path = '/' + '_bulk'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      bulkBody: body,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildBulk

api/api/cat.aliases.js

@@ -0,0 +1,105 @@
+/*
+ * 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 */
+
+function buildCatAliases (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'h',
+    'help',
+    's',
+    'v',
+    'expand_wildcards',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    expandWildcards: 'expand_wildcards',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.aliases request
+   * Shows information about currently configured aliases to indices including filter and routing infos.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-alias.html
+   */
+  return function catAliases (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'aliases' + '/' + encodeURIComponent(name)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'aliases'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatAliases

api/api/cat.allocation.js

@@ -0,0 +1,106 @@
+/*
+ * 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 */
+
+function buildCatAllocation (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.allocation request
+   * Provides a snapshot of how many shards are allocated to each data node and how much disk space they are using.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-allocation.html
+   */
+  return function catAllocation (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, nodeId, node_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((node_id || nodeId) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'allocation' + '/' + encodeURIComponent(node_id || nodeId)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'allocation'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatAllocation

api/api/cat.count.js

@@ -0,0 +1,102 @@
+/*
+ * 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 */
+
+function buildCatCount (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.count request
+   * Provides quick access to the document count of the entire cluster, or individual indices.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-count.html
+   */
+  return function catCount (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'count' + '/' + encodeURIComponent(index)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'count'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatCount

api/api/cat.fielddata.js

@@ -0,0 +1,104 @@
+/*
+ * 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 */
+
+function buildCatFielddata (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'h',
+    'help',
+    's',
+    'v',
+    'fields',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.fielddata request
+   * Shows how much heap memory is currently being used by fielddata on every data node in the cluster.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-fielddata.html
+   */
+  return function catFielddata (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, fields, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((fields) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'fielddata' + '/' + encodeURIComponent(fields)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'fielddata'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatFielddata

api/api/cat.health.js

@@ -0,0 +1,99 @@
+/*
+ * 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 */
+
+function buildCatHealth (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'h',
+    'help',
+    's',
+    'time',
+    'ts',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.health request
+   * Returns a concise representation of the cluster health.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-health.html
+   */
+  return function catHealth (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'health'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatHealth

api/api/cat.help.js

@@ -0,0 +1,94 @@
+/*
+ * 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 */
+
+function buildCatHelp (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'help',
+    's',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.help request
+   * Returns help for the Cat APIs.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat.html
+   */
+  return function catHelp (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatHelp

api/api/cat.indices.js

@@ -0,0 +1,113 @@
+/*
+ * 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 */
+
+function buildCatIndices (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'health',
+    'help',
+    'pri',
+    's',
+    'time',
+    'v',
+    'include_unloaded_segments',
+    'expand_wildcards',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    includeUnloadedSegments: 'include_unloaded_segments',
+    expandWildcards: 'expand_wildcards',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.indices request
+   * Returns information about indices: number of primaries and replicas, document counts, disk size, ...
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-indices.html
+   */
+  return function catIndices (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'indices' + '/' + encodeURIComponent(index)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'indices'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatIndices

api/api/cat.master.js

@@ -0,0 +1,100 @@
+/*
+ * 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 */
+
+function buildCatMaster (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.master request
+   * Returns information about the master node.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-master.html
+   */
+  return function catMaster (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'master'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatMaster

api/api/cat.ml_data_frame_analytics.js

@@ -0,0 +1,100 @@
+/*
+ * 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 */
+
+function buildCatMlDataFrameAnalytics (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'allow_no_match',
+    'bytes',
+    'format',
+    'h',
+    'help',
+    's',
+    'time',
+    'v'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match'
+
+  }
+
+  /**
+   * Perform a cat.ml_data_frame_analytics request
+   * Gets configuration and usage information about data frame analytics jobs.
+   * http://www.elastic.co/guide/en/elasticsearch/reference/current/cat-dfanalytics.html
+   */
+  return function catMlDataFrameAnalytics (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((id) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'data_frame' + '/' + 'analytics' + '/' + encodeURIComponent(id)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'data_frame' + '/' + 'analytics'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatMlDataFrameAnalytics

api/api/cat.ml_datafeeds.js

@@ -0,0 +1,101 @@
+/*
+ * 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 */
+
+function buildCatMlDatafeeds (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'allow_no_match',
+    'allow_no_datafeeds',
+    'format',
+    'h',
+    'help',
+    's',
+    'time',
+    'v'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match',
+    allowNoDatafeeds: 'allow_no_datafeeds'
+
+  }
+
+  /**
+   * Perform a cat.ml_datafeeds request
+   * Gets configuration and usage information about datafeeds.
+   * http://www.elastic.co/guide/en/elasticsearch/reference/current/cat-datafeeds.html
+   */
+  return function catMlDatafeeds (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, datafeedId, datafeed_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((datafeed_id || datafeedId) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'datafeeds' + '/' + encodeURIComponent(datafeed_id || datafeedId)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'datafeeds'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatMlDatafeeds

api/api/cat.ml_jobs.js

@@ -0,0 +1,102 @@
+/*
+ * 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 */
+
+function buildCatMlJobs (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'allow_no_match',
+    'allow_no_jobs',
+    'bytes',
+    'format',
+    'h',
+    'help',
+    's',
+    'time',
+    'v'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match',
+    allowNoJobs: 'allow_no_jobs'
+
+  }
+
+  /**
+   * Perform a cat.ml_jobs request
+   * Gets configuration and usage information about anomaly detection jobs.
+   * http://www.elastic.co/guide/en/elasticsearch/reference/current/cat-anomaly-detectors.html
+   */
+  return function catMlJobs (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, jobId, job_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((job_id || jobId) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'anomaly_detectors' + '/' + encodeURIComponent(job_id || jobId)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'anomaly_detectors'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatMlJobs

api/api/cat.ml_trained_models.js

@@ -0,0 +1,102 @@
+/*
+ * 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 */
+
+function buildCatMlTrainedModels (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'allow_no_match',
+    'from',
+    'size',
+    'bytes',
+    'format',
+    'h',
+    'help',
+    's',
+    'time',
+    'v'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match'
+
+  }
+
+  /**
+   * Perform a cat.ml_trained_models request
+   * Gets configuration and usage information about inference trained models.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-trained-model.html
+   */
+  return function catMlTrainedModels (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, modelId, model_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((model_id || modelId) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'trained_models' + '/' + encodeURIComponent(model_id || modelId)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'ml' + '/' + 'trained_models'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatMlTrainedModels

api/api/cat.nodeattrs.js

@@ -0,0 +1,100 @@
+/*
+ * 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 */
+
+function buildCatNodeattrs (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.nodeattrs request
+   * Returns information about custom node attributes.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-nodeattrs.html
+   */
+  return function catNodeattrs (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'nodeattrs'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatNodeattrs

api/api/cat.nodes.js

@@ -0,0 +1,103 @@
+/*
+ * 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 */
+
+function buildCatNodes (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'bytes',
+    'format',
+    'full_id',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'time',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    fullId: 'full_id',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.nodes request
+   * Returns basic statistics about performance of cluster nodes.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-nodes.html
+   */
+  return function catNodes (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'nodes'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatNodes

api/api/cat.pending_tasks.js

@@ -0,0 +1,101 @@
+/*
+ * 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 */
+
+function buildCatPendingTasks (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'time',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.pending_tasks request
+   * Returns a concise representation of the cluster pending tasks.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-pending-tasks.html
+   */
+  return function catPendingTasks (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'pending_tasks'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatPendingTasks

api/api/cat.plugins.js

@@ -0,0 +1,100 @@
+/*
+ * 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 */
+
+function buildCatPlugins (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.plugins request
+   * Returns information about installed plugins across nodes node.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-plugins.html
+   */
+  return function catPlugins (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'plugins'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatPlugins

api/api/cat.recovery.js

@@ -0,0 +1,108 @@
+/*
+ * 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 */
+
+function buildCatRecovery (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'active_only',
+    'bytes',
+    'detailed',
+    'h',
+    'help',
+    'index',
+    's',
+    'time',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    activeOnly: 'active_only',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.recovery request
+   * Returns information about index shard recoveries, both on-going completed.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-recovery.html
+   */
+  return function catRecovery (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'recovery' + '/' + encodeURIComponent(index)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'recovery'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatRecovery

api/api/cat.repositories.js

@@ -0,0 +1,100 @@
+/*
+ * 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 */
+
+function buildCatRepositories (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.repositories request
+   * Returns information about snapshot repositories registered in the cluster.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-repositories.html
+   */
+  return function catRepositories (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'repositories'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatRepositories

api/api/cat.segments.js

@@ -0,0 +1,103 @@
+/*
+ * 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 */
+
+function buildCatSegments (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.segments request
+   * Provides low-level information about the segments in the shards of an index.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-segments.html
+   */
+  return function catSegments (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'segments' + '/' + encodeURIComponent(index)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'segments'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatSegments

api/api/cat.shards.js

@@ -0,0 +1,107 @@
+/*
+ * 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 */
+
+function buildCatShards (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'time',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.shards request
+   * Provides a detailed view of shard allocation on nodes.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-shards.html
+   */
+  return function catShards (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'shards' + '/' + encodeURIComponent(index)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'shards'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatShards

api/api/cat.snapshots.js

@@ -0,0 +1,107 @@
+/*
+ * 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 */
+
+function buildCatSnapshots (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'ignore_unavailable',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'time',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    ignoreUnavailable: 'ignore_unavailable',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.snapshots request
+   * Returns all snapshots in a specific repository.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-snapshots.html
+   */
+  return function catSnapshots (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, repository, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((repository) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'snapshots' + '/' + encodeURIComponent(repository)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'snapshots'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatSnapshots

api/api/cat.tasks.js

@@ -0,0 +1,104 @@
+/*
+ * 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 */
+
+function buildCatTasks (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'node_id',
+    'actions',
+    'detailed',
+    'parent_task',
+    'h',
+    'help',
+    's',
+    'time',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    nodeId: 'node_id',
+    parentTask: 'parent_task',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.tasks request
+   * Returns information about the tasks currently executing on one or more nodes in the cluster.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/tasks.html
+   */
+  return function catTasks (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cat' + '/' + 'tasks'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatTasks

api/api/cat.templates.js

@@ -0,0 +1,105 @@
+/*
+ * 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 */
+
+function buildCatTemplates (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.templates request
+   * Returns information about existing templates.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-templates.html
+   */
+  return function catTemplates (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'templates' + '/' + encodeURIComponent(name)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'templates'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatTemplates

api/api/cat.thread_pool.js

@@ -0,0 +1,107 @@
+/*
+ * 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 */
+
+function buildCatThreadPool (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'format',
+    'time',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cat.thread_pool request
+   * Returns cluster-wide thread pool statistics per node.
+By default the active, queue and rejected statistics are returned for all thread pools.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cat-thread-pool.html
+   */
+  return function catThreadPool (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, threadPoolPatterns, thread_pool_patterns, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((thread_pool_patterns || threadPoolPatterns) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'thread_pool' + '/' + encodeURIComponent(thread_pool_patterns || threadPoolPatterns)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'thread_pool'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatThreadPool

api/api/cat.transforms.js

@@ -0,0 +1,101 @@
+/*
+ * 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 */
+
+function buildCatTransforms (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'from',
+    'size',
+    'allow_no_match',
+    'format',
+    'h',
+    'help',
+    's',
+    'time',
+    'v'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match'
+
+  }
+
+  /**
+   * Perform a cat.transforms request
+   * Gets configuration and usage information about transforms.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-transforms.html
+   */
+  return function catTransforms (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((transform_id || transformId) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cat' + '/' + 'transforms'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatTransforms

api/api/ccr.delete_auto_follow_pattern.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrDeleteAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.delete_auto_follow_pattern request
+   * Deletes auto-follow patterns.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-delete-auto-follow-pattern.html
+   */
+  return function ccrDeleteAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrDeleteAutoFollowPattern

api/api/ccr.follow.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildCcrFollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards'
+  }
+
+  /**
+   * Perform a ccr.follow request
+   * Creates a new follower index configured to follow the referenced leader index.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-put-follow.html
+   */
+  return function ccrFollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'PUT'
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'follow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrFollow

api/api/ccr.follow_info.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrFollowInfo (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.follow_info request
+   * Retrieves information about all follower indices, including parameters and status for each follower index
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-follow-info.html
+   */
+  return function ccrFollowInfo (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'info'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrFollowInfo

api/api/ccr.follow_stats.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrFollowStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.follow_stats request
+   * Retrieves follower stats. return shard-level stats about the following tasks associated with each shard for the specified indices.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-follow-stats.html
+   */
+  return function ccrFollowStats (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'stats'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrFollowStats

api/api/ccr.forget_follower.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildCcrForgetFollower (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.forget_follower request
+   * Removes the follower retention leases from the leader.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-forget-follower.html
+   */
+  return function ccrForgetFollower (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'forget_follower'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrForgetFollower

api/api/ccr.get_auto_follow_pattern.js

@@ -0,0 +1,92 @@
+/*
+ * 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 */
+
+function buildCcrGetAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.get_auto_follow_pattern request
+   * Gets configured auto-follow patterns. Returns the specified auto-follow pattern collection.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-auto-follow-pattern.html
+   */
+  return function ccrGetAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_ccr' + '/' + 'auto_follow'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrGetAutoFollowPattern

api/api/ccr.pause_auto_follow_pattern.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrPauseAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.pause_auto_follow_pattern request
+   * Pauses an auto-follow pattern
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-pause-auto-follow-pattern.html
+   */
+  return function ccrPauseAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name) + '/' + 'pause'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrPauseAutoFollowPattern

api/api/ccr.pause_follow.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrPauseFollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.pause_follow request
+   * Pauses a follower index. The follower index will not fetch any additional operations from the leader index.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-pause-follow.html
+   */
+  return function ccrPauseFollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'pause_follow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrPauseFollow

api/api/ccr.put_auto_follow_pattern.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildCcrPutAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.put_auto_follow_pattern request
+   * Creates a new named collection of auto-follow patterns against a specified remote cluster. Newly created indices on the remote cluster matching any of the specified patterns will be automatically configured as follower indices.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-put-auto-follow-pattern.html
+   */
+  return function ccrPutAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'PUT'
+    path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrPutAutoFollowPattern

api/api/ccr.resume_auto_follow_pattern.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrResumeAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.resume_auto_follow_pattern request
+   * Resumes an auto-follow pattern that has been paused
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-resume-auto-follow-pattern.html
+   */
+  return function ccrResumeAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name) + '/' + 'resume'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrResumeAutoFollowPattern

api/api/ccr.resume_follow.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrResumeFollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.resume_follow request
+   * Resumes a follower index that has been paused
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-resume-follow.html
+   */
+  return function ccrResumeFollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'resume_follow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrResumeFollow

api/api/ccr.stats.js

@@ -0,0 +1,87 @@
+/*
+ * 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 */
+
+function buildCcrStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.stats request
+   * Gets all stats related to cross-cluster replication.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-stats.html
+   */
+  return function ccrStats (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_ccr' + '/' + 'stats'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrStats

api/api/ccr.unfollow.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildCcrUnfollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a ccr.unfollow request
+   * Stops the following task associated with a follower index and removes index metadata and settings associated with cross-cluster replication.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-unfollow.html
+   */
+  return function ccrUnfollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'unfollow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrUnfollow

api/api/clear_scroll.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildClearScroll (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a clear_scroll request
+   * Explicitly clears the search context for a scroll.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/clear-scroll-api.html
+   */
+  return function clearScroll (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, scrollId, scroll_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((scroll_id || scrollId) != null) {
+      if (method == null) method = 'DELETE'
+      path = '/' + '_search' + '/' + 'scroll' + '/' + encodeURIComponent(scroll_id || scrollId)
+    } else {
+      if (method == null) method = 'DELETE'
+      path = '/' + '_search' + '/' + 'scroll'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClearScroll

api/api/close_point_in_time.js

@@ -0,0 +1,87 @@
+/*
+ * 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 */
+
+function buildClosePointInTime (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a close_point_in_time request
+   * Close a point in time
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/point-in-time.html
+   */
+  return function closePointInTime (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_pit'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClosePointInTime

api/api/cluster.allocation_explain.js

@@ -0,0 +1,96 @@
+/*
+ * 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 */
+
+function buildClusterAllocationExplain (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'include_yes_decisions',
+    'include_disk_info',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    includeYesDecisions: 'include_yes_decisions',
+    includeDiskInfo: 'include_disk_info',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.allocation_explain request
+   * Provides explanations for shard allocations in the cluster.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-allocation-explain.html
+   */
+  return function clusterAllocationExplain (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = body == null ? 'GET' : 'POST'
+    path = '/' + '_cluster' + '/' + 'allocation' + '/' + 'explain'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterAllocationExplain

api/api/cluster.delete_component_template.js

@@ -0,0 +1,101 @@
+/*
+ * 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 */
+
+function buildClusterDeleteComponentTemplate (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'timeout',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.delete_component_template request
+   * Deletes a component template
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-component-template.html
+   */
+  return function clusterDeleteComponentTemplate (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_component_template' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterDeleteComponentTemplate

api/api/cluster.delete_voting_config_exclusions.js

@@ -0,0 +1,94 @@
+/*
+ * 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 */
+
+function buildClusterDeleteVotingConfigExclusions (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_removal',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    waitForRemoval: 'wait_for_removal',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.delete_voting_config_exclusions request
+   * Clears cluster voting config exclusions.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/voting-config-exclusions.html
+   */
+  return function clusterDeleteVotingConfigExclusions (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_cluster' + '/' + 'voting_config_exclusions'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterDeleteVotingConfigExclusions

api/api/cluster.exists_component_template.js

@@ -0,0 +1,101 @@
+/*
+ * 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 */
+
+function buildClusterExistsComponentTemplate (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'master_timeout',
+    'local',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.exists_component_template request
+   * Returns information about whether a particular component template exist
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-component-template.html
+   */
+  return function clusterExistsComponentTemplate (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'HEAD'
+    path = '/' + '_component_template' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterExistsComponentTemplate

api/api/cluster.get_component_template.js

@@ -0,0 +1,100 @@
+/*
+ * 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 */
+
+function buildClusterGetComponentTemplate (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'master_timeout',
+    'local',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.get_component_template request
+   * Returns one or more component templates
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-component-template.html
+   */
+  return function clusterGetComponentTemplate (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_component_template' + '/' + encodeURIComponent(name)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_component_template'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterGetComponentTemplate

api/api/cluster.get_settings.js

@@ -0,0 +1,99 @@
+/*
+ * 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 */
+
+function buildClusterGetSettings (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'flat_settings',
+    'master_timeout',
+    'timeout',
+    'include_defaults',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    flatSettings: 'flat_settings',
+    masterTimeout: 'master_timeout',
+    includeDefaults: 'include_defaults',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.get_settings request
+   * Returns cluster settings.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-update-settings.html
+   */
+  return function clusterGetSettings (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cluster' + '/' + 'settings'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterGetSettings

api/api/cluster.health.js

@@ -0,0 +1,116 @@
+/*
+ * 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 */
+
+function buildClusterHealth (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'expand_wildcards',
+    'level',
+    'local',
+    'master_timeout',
+    'timeout',
+    'wait_for_active_shards',
+    'wait_for_nodes',
+    'wait_for_events',
+    'wait_for_no_relocating_shards',
+    'wait_for_no_initializing_shards',
+    'wait_for_status',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    expandWildcards: 'expand_wildcards',
+    masterTimeout: 'master_timeout',
+    waitForActiveShards: 'wait_for_active_shards',
+    waitForNodes: 'wait_for_nodes',
+    waitForEvents: 'wait_for_events',
+    waitForNoRelocatingShards: 'wait_for_no_relocating_shards',
+    waitForNoInitializingShards: 'wait_for_no_initializing_shards',
+    waitForStatus: 'wait_for_status',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.health request
+   * Returns basic information about the health of the cluster.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-health.html
+   */
+  return function clusterHealth (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cluster' + '/' + 'health' + '/' + encodeURIComponent(index)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cluster' + '/' + 'health'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterHealth

api/api/cluster.pending_tasks.js

@@ -0,0 +1,96 @@
+/*
+ * 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 */
+
+function buildClusterPendingTasks (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'local',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.pending_tasks request
+   * Returns a list of any cluster-level changes (e.g. create index, update mapping,
+allocate or fail shard) which have not yet been executed.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-pending.html
+   */
+  return function clusterPendingTasks (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_cluster' + '/' + 'pending_tasks'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterPendingTasks

api/api/cluster.post_voting_config_exclusions.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildClusterPostVotingConfigExclusions (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'node_ids',
+    'node_names',
+    'timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    nodeIds: 'node_ids',
+    nodeNames: 'node_names',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.post_voting_config_exclusions request
+   * Updates the cluster voting config exclusions by node ids or node names.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/voting-config-exclusions.html
+   */
+  return function clusterPostVotingConfigExclusions (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_cluster' + '/' + 'voting_config_exclusions'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterPostVotingConfigExclusions

api/api/cluster.put_component_template.js

@@ -0,0 +1,106 @@
+/*
+ * 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 */
+
+function buildClusterPutComponentTemplate (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'create',
+    'timeout',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.put_component_template request
+   * Creates or updates a component template
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/indices-component-template.html
+   */
+  return function clusterPutComponentTemplate (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'PUT'
+    path = '/' + '_component_template' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterPutComponentTemplate

api/api/cluster.put_settings.js

@@ -0,0 +1,103 @@
+/*
+ * 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 */
+
+function buildClusterPutSettings (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'flat_settings',
+    'master_timeout',
+    'timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    flatSettings: 'flat_settings',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.put_settings request
+   * Updates the cluster settings.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-update-settings.html
+   */
+  return function clusterPutSettings (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'PUT'
+    path = '/' + '_cluster' + '/' + 'settings'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterPutSettings

api/api/cluster.remote_info.js

@@ -0,0 +1,92 @@
+/*
+ * 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 */
+
+function buildClusterRemoteInfo (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.remote_info request
+   * Returns the information about configured remote clusters.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-remote-info.html
+   */
+  return function clusterRemoteInfo (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_remote' + '/' + 'info'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterRemoteInfo

api/api/cluster.reroute.js

@@ -0,0 +1,101 @@
+/*
+ * 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 */
+
+function buildClusterReroute (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'dry_run',
+    'explain',
+    'retry_failed',
+    'metric',
+    'master_timeout',
+    'timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    dryRun: 'dry_run',
+    retryFailed: 'retry_failed',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.reroute request
+   * Allows to manually change the allocation of individual shards in the cluster.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-reroute.html
+   */
+  return function clusterReroute (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_cluster' + '/' + 'reroute'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterReroute

api/api/cluster.state.js

@@ -0,0 +1,121 @@
+/*
+ * 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 */
+
+function buildClusterState (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'local',
+    'master_timeout',
+    'flat_settings',
+    'wait_for_metadata_version',
+    'wait_for_timeout',
+    'ignore_unavailable',
+    'allow_no_indices',
+    'expand_wildcards',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    flatSettings: 'flat_settings',
+    waitForMetadataVersion: 'wait_for_metadata_version',
+    waitForTimeout: 'wait_for_timeout',
+    ignoreUnavailable: 'ignore_unavailable',
+    allowNoIndices: 'allow_no_indices',
+    expandWildcards: 'expand_wildcards',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.state request
+   * Returns a comprehensive information about the state of the cluster.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-state.html
+   */
+  return function clusterState (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required url components
+    if (params['index'] != null && (params['metric'] == null)) {
+      const err = new ConfigurationError('Missing required parameter of the url: metric')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, metric, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((metric) != null && (index) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cluster' + '/' + 'state' + '/' + encodeURIComponent(metric) + '/' + encodeURIComponent(index)
+    } else if ((metric) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cluster' + '/' + 'state' + '/' + encodeURIComponent(metric)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cluster' + '/' + 'state'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterState

api/api/cluster.stats.js

@@ -0,0 +1,100 @@
+/*
+ * 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 */
+
+function buildClusterStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'flat_settings',
+    'timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    flatSettings: 'flat_settings',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a cluster.stats request
+   * Returns high-level overview of cluster statistics.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-stats.html
+   */
+  return function clusterStats (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, nodeId, node_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((node_id || nodeId) != null) {
+      if (method == null) method = 'GET'
+      path = '/' + '_cluster' + '/' + 'stats' + '/' + 'nodes' + '/' + encodeURIComponent(node_id || nodeId)
+    } else {
+      if (method == null) method = 'GET'
+      path = '/' + '_cluster' + '/' + 'stats'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterStats

api/api/count.js

@@ -0,0 +1,119 @@
+/*
+ * 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 */
+
+function buildCount (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'ignore_unavailable',
+    'ignore_throttled',
+    'allow_no_indices',
+    'expand_wildcards',
+    'min_score',
+    'preference',
+    'routing',
+    'q',
+    'analyzer',
+    'analyze_wildcard',
+    'default_operator',
+    'df',
+    'lenient',
+    'terminate_after',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    ignoreUnavailable: 'ignore_unavailable',
+    ignoreThrottled: 'ignore_throttled',
+    allowNoIndices: 'allow_no_indices',
+    expandWildcards: 'expand_wildcards',
+    minScore: 'min_score',
+    analyzeWildcard: 'analyze_wildcard',
+    defaultOperator: 'default_operator',
+    terminateAfter: 'terminate_after',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a count request
+   * Returns number of documents matching a query.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/search-count.html
+   */
+  return function count (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      if (method == null) method = body == null ? 'GET' : 'POST'
+      path = '/' + encodeURIComponent(index) + '/' + '_count'
+    } else {
+      if (method == null) method = body == null ? 'GET' : 'POST'
+      path = '/' + '_count'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCount

api/api/create.js

@@ -0,0 +1,122 @@
+/*
+ * 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 */
+
+function buildCreate (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards',
+    'refresh',
+    'routing',
+    'timeout',
+    'version',
+    'version_type',
+    'pipeline',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards',
+    versionType: 'version_type',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a create request
+   * Creates a new document in the index.
+
+Returns a 409 response when a document with a same ID already exists in the index.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-index_.html
+   */
+  return function create (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, id, index, type, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null && (id) != null) {
+      if (method == null) method = 'PUT'
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_create'
+    } else {
+      if (method == null) method = 'PUT'
+      path = '/' + encodeURIComponent(index) + '/' + '_create' + '/' + encodeURIComponent(id)
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCreate

api/api/dangling_indices.delete_dangling_index.js

@@ -0,0 +1,103 @@
+/*
+ * 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 */
+
+function buildDanglingIndicesDeleteDanglingIndex (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'accept_data_loss',
+    'timeout',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    acceptDataLoss: 'accept_data_loss',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a dangling_indices.delete_dangling_index request
+   * Deletes the specified dangling index
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/modules-gateway-dangling-indices.html
+   */
+  return function danglingIndicesDeleteDanglingIndex (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index_uuid'] == null && params['indexUuid'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index_uuid or indexUuid')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, indexUuid, index_uuid, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_dangling' + '/' + encodeURIComponent(index_uuid || indexUuid)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDanglingIndicesDeleteDanglingIndex

api/api/dangling_indices.import_dangling_index.js

@@ -0,0 +1,103 @@
+/*
+ * 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 */
+
+function buildDanglingIndicesImportDanglingIndex (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'accept_data_loss',
+    'timeout',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    acceptDataLoss: 'accept_data_loss',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a dangling_indices.import_dangling_index request
+   * Imports the specified dangling index
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/modules-gateway-dangling-indices.html
+   */
+  return function danglingIndicesImportDanglingIndex (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index_uuid'] == null && params['indexUuid'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index_uuid or indexUuid')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, indexUuid, index_uuid, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_dangling' + '/' + encodeURIComponent(index_uuid || indexUuid)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDanglingIndicesImportDanglingIndex

api/api/dangling_indices.list_dangling_indices.js

@@ -0,0 +1,92 @@
+/*
+ * 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 */
+
+function buildDanglingIndicesListDanglingIndices (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a dangling_indices.list_dangling_indices request
+   * Returns all dangling indices.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/modules-gateway-dangling-indices.html
+   */
+  return function danglingIndicesListDanglingIndices (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_dangling'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDanglingIndicesListDanglingIndices

api/api/data_frame_transform_deprecated.delete_transform.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedDeleteTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'force'
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.delete_transform request
+   * Deletes an existing transform.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/delete-transform.html
+   */
+  return function dataFrameTransformDeprecatedDeleteTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'DELETE'
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedDeleteTransform

api/api/data_frame_transform_deprecated.get_transform.js

@@ -0,0 +1,89 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedGetTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'from',
+    'size',
+    'allow_no_match'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match'
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.get_transform request
+   * Retrieves configuration information for transforms.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/get-transform.html
+   */
+  return function dataFrameTransformDeprecatedGetTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedGetTransform

api/api/data_frame_transform_deprecated.get_transform_stats.js

@@ -0,0 +1,95 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedGetTransformStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'from',
+    'size',
+    'allow_no_match'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match'
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.get_transform_stats request
+   * Retrieves usage information for transforms.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/get-transform-stats.html
+   */
+  return function dataFrameTransformDeprecatedGetTransformStats (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'GET'
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_stats'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedGetTransformStats

api/api/data_frame_transform_deprecated.preview_transform.js

@@ -0,0 +1,90 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedPreviewTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.preview_transform request
+   * Previews a transform.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/preview-transform.html
+   */
+  return function dataFrameTransformDeprecatedPreviewTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedPreviewTransform

api/api/data_frame_transform_deprecated.put_transform.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedPutTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'defer_validation'
+  ]
+
+  const snakeCase = {
+    deferValidation: 'defer_validation'
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.put_transform request
+   * Instantiates a transform.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/put-transform.html
+   */
+  return function dataFrameTransformDeprecatedPutTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'PUT'
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedPutTransform

api/api/data_frame_transform_deprecated.start_transform.js

@@ -0,0 +1,93 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedStartTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'timeout'
+  ]
+
+  const snakeCase = {
+
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.start_transform request
+   * Starts one or more transforms.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/start-transform.html
+   */
+  return function dataFrameTransformDeprecatedStartTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_start'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedStartTransform

api/api/data_frame_transform_deprecated.stop_transform.js

@@ -0,0 +1,96 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedStopTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_completion',
+    'timeout',
+    'allow_no_match'
+  ]
+
+  const snakeCase = {
+    waitForCompletion: 'wait_for_completion',
+    allowNoMatch: 'allow_no_match'
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.stop_transform request
+   * Stops one or more transforms.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/stop-transform.html
+   */
+  return function dataFrameTransformDeprecatedStopTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_stop'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedStopTransform

api/api/data_frame_transform_deprecated.update_transform.js

@@ -0,0 +1,97 @@
+/*
+ * 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 */
+
+function buildDataFrameTransformDeprecatedUpdateTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'defer_validation'
+  ]
+
+  const snakeCase = {
+    deferValidation: 'defer_validation'
+  }
+
+  /**
+   * Perform a data_frame_transform_deprecated.update_transform request
+   * Updates certain properties of a transform.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/update-transform.html
+   */
+  return function dataFrameTransformDeprecatedUpdateTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, transformId, transform_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_update'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameTransformDeprecatedUpdateTransform

api/api/delete.js

@@ -0,0 +1,119 @@
+/*
+ * 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 */
+
+function buildDelete (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards',
+    'refresh',
+    'routing',
+    'timeout',
+    'if_seq_no',
+    'if_primary_term',
+    'version',
+    'version_type',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards',
+    ifSeqNo: 'if_seq_no',
+    ifPrimaryTerm: 'if_primary_term',
+    versionType: 'version_type',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a delete request
+   * Removes a document from the index.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-delete.html
+   */
+  return function _delete (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, id, index, type, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null && (id) != null) {
+      if (method == null) method = 'DELETE'
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id)
+    } else {
+      if (method == null) method = 'DELETE'
+      path = '/' + encodeURIComponent(index) + '/' + '_doc' + '/' + encodeURIComponent(id)
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDelete

api/api/delete_by_query.js

@@ -0,0 +1,154 @@
+/*
+ * 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 */
+
+function buildDeleteByQuery (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'analyzer',
+    'analyze_wildcard',
+    'default_operator',
+    'df',
+    'from',
+    'ignore_unavailable',
+    'allow_no_indices',
+    'conflicts',
+    'expand_wildcards',
+    'lenient',
+    'preference',
+    'q',
+    'routing',
+    'scroll',
+    'search_type',
+    'search_timeout',
+    'max_docs',
+    'sort',
+    '_source',
+    '_source_excludes',
+    '_source_exclude',
+    '_source_includes',
+    '_source_include',
+    'terminate_after',
+    'stats',
+    'version',
+    'request_cache',
+    'refresh',
+    'timeout',
+    'wait_for_active_shards',
+    'scroll_size',
+    'wait_for_completion',
+    'requests_per_second',
+    'slices',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    analyzeWildcard: 'analyze_wildcard',
+    defaultOperator: 'default_operator',
+    ignoreUnavailable: 'ignore_unavailable',
+    allowNoIndices: 'allow_no_indices',
+    expandWildcards: 'expand_wildcards',
+    searchType: 'search_type',
+    searchTimeout: 'search_timeout',
+    maxDocs: 'max_docs',
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    terminateAfter: 'terminate_after',
+    requestCache: 'request_cache',
+    waitForActiveShards: 'wait_for_active_shards',
+    scrollSize: 'scroll_size',
+    waitForCompletion: 'wait_for_completion',
+    requestsPerSecond: 'requests_per_second',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a delete_by_query request
+   * Deletes documents matching the provided query.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-delete-by-query.html
+   */
+  return function deleteByQuery (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + encodeURIComponent(index) + '/' + '_delete_by_query'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDeleteByQuery

api/api/delete_by_query_rethrottle.js

@@ -0,0 +1,104 @@
+/*
+ * 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 */
+
+function buildDeleteByQueryRethrottle (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+
+  const acceptedQuerystring = [
+    'requests_per_second',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    requestsPerSecond: 'requests_per_second',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  /**
+   * Perform a delete_by_query_rethrottle request
+   * Changes the number of requests per second for a particular Delete By Query operation.
+   * https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-delete-by-query.html
+   */
+  return function deleteByQueryRethrottle (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['task_id'] == null && params['taskId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: task_id or taskId')
+      return handleError(err, callback)
+    }
+    if (params['requests_per_second'] == null && params['requestsPerSecond'] == null) {
+      const err = new ConfigurationError('Missing required parameter: requests_per_second or requestsPerSecond')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, taskId, task_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if (method == null) method = 'POST'
+    path = '/' + '_delete_by_query' + '/' + encodeURIComponent(task_id || taskId) + '/' + '_rethrottle'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDeleteByQueryRethrottle