Bumped v6.8.6

* ApiKey should take precedence over basic auth

* Updated docs

* Updated test

Co-authored-by: Tomas Della Vedova <delvedor@users.noreply.github.com>

.buildkite/Dockerfile

@@ -1,16 +0,0 @@
-ARG NODE_VERSION=${NODE_VERSION:-18}
-FROM node:$NODE_VERSION
-
-# Install required tools
-RUN apt-get clean -y && \
-  apt-get -qy update && \
-  apt-get -y install zip && \
-  apt-get clean && \
-  rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
-
-WORKDIR /usr/src/app
-
-COPY package.json .
-RUN npm install
-
-COPY . .

.buildkite/Dockerfile-make

@@ -1,30 +0,0 @@
-ARG NODE_JS_VERSION=${NODE_JS_VERSION:-18}
-FROM node:${NODE_JS_VERSION}
-
-ARG BUILDER_UID=1000
-ARG BUILDER_GID=1000
-ENV BUILDER_USER elastic
-ENV BUILDER_GROUP elastic
-
-# install zip util
-RUN apt-get clean -y && \
-    apt-get update -y && \
-    apt-get install -y zip
-
-# Set user permissions and directory
-RUN (id -g ${BUILDER_GID} || groupadd --system -g ${BUILDER_GID} ${BUILDER_GROUP}) \
-    && (id -u ${BUILDER_UID} || useradd --system --shell /bin/bash -u ${BUILDER_UID} -g ${BUILDER_GID} -m elastic) \
-    && mkdir -p /usr/src/elasticsearch-js \
-    && chown -R ${BUILDER_UID}:${BUILDER_GID} /usr/src/
-
-WORKDIR /usr/src/elasticsearch-js
-
-# run remainder of commands as non-root user
-USER ${BUILDER_UID}:${BUILDER_GID}
-
-# install dependencies
-COPY package.json .
-RUN npm install
-
-# copy project files
-COPY . .

.buildkite/certs/testnode.crt

@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDYjCCAkqgAwIBAgIVAIClHav09e9XGWJrnshywAjUHTnXMA0GCSqGSIb3DQEB
-CwUAMDQxMjAwBgNVBAMTKUVsYXN0aWMgQ2VydGlmaWNhdGUgVG9vbCBBdXRvZ2Vu
-ZXJhdGVkIENBMB4XDTIzMDMyODE3MDIzOVoXDTI2MDMyNzE3MDIzOVowEzERMA8G
-A1UEAxMIaW5zdGFuY2UwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCV
-+t5/g6u2r3awCtzqp17KG0hRxzkVoJoF8DYzVh+Rv9ymxQW0C/U8dQihAjkZHaIA
-n49lSyNLkwWtmqQgPcimV4d6XuTYx2ahDixXYtjmoOSwH5dRtovKPCNKDPkUj9Vq
-NwMW0uB1VxniMKI4DnYFqBgHL9kQKhQqvas6Gx0X6ptGRCLYCtVxeFcau6nnkZJt
-urb+HNV5waOh0uTmsqnnslK3NjCQ/f030vPKxM5fOqOU5ajUHpZFJ6ZFmS32074H
-l+mZoRT/GtbnVtIg+CJXsWThF3/L4iBImv+rkY9MKX5fyMLJgmIJG68S90IQGR8c
-Z2lZYzC0J7zjMsYlODbDAgMBAAGjgYswgYgwHQYDVR0OBBYEFIDIcECn3AVHc3jk
-MpQ4r7Kc3WCsMB8GA1UdIwQYMBaAFJYCWKn16g+acbing4Vl45QGUBs0MDsGA1Ud
-EQQ0MDKCCWxvY2FsaG9zdIIIaW5zdGFuY2WHBH8AAAGHEAAAAAAAAAAAAAAAAAAA
-AAGCA2VzMTAJBgNVHRMEAjAAMA0GCSqGSIb3DQEBCwUAA4IBAQBtX3RQ5ATpfORM
-lrnhaUPGOWkjnb3p3BrdAWUaWoh136QhaXqxKiALQQhTtTerkXOcuquy9MmAyYvS
-9fDdGvLCAO8pPCXjnzonCHerCLGdS7f/eqvSFWCdy7LPHzTAFYfVWVvbZed+83TL
-bDY63AMwIexj34vJEStMapuFwWx05fstE8qZWIbYCL87sF5H/MRhzlz3ScAhQ1N7
-tODH7zvLzSxFGGEzCIKZ0iPFKbd3Y0wE6SptDSKhOqlnC8kkNeI2GjWsqVfHKsoF
-pDFmri7IfOucuvalXJ6xiHPr9RDbuxEXs0u8mteT5nFQo7EaEGdHpg1pNGbfBOzP
-lmj/dRS9
------END CERTIFICATE-----

.buildkite/certs/testnode.key

@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEAlfref4Ortq92sArc6qdeyhtIUcc5FaCaBfA2M1Yfkb/cpsUF
-tAv1PHUIoQI5GR2iAJ+PZUsjS5MFrZqkID3IpleHel7k2MdmoQ4sV2LY5qDksB+X
-UbaLyjwjSgz5FI/VajcDFtLgdVcZ4jCiOA52BagYBy/ZECoUKr2rOhsdF+qbRkQi
-2ArVcXhXGrup55GSbbq2/hzVecGjodLk5rKp57JStzYwkP39N9LzysTOXzqjlOWo
-1B6WRSemRZkt9tO+B5fpmaEU/xrW51bSIPgiV7Fk4Rd/y+IgSJr/q5GPTCl+X8jC
-yYJiCRuvEvdCEBkfHGdpWWMwtCe84zLGJTg2wwIDAQABAoIBAAEP7HYNNnDWdYMD
-+WAtYM12X/W5s/wUP94juaBI4u4iZH2EZodlixEdZUCTXgq43WsDUhxX05s7cE+p
-H5DuSCHtoo2WHvGKAposwRDm2f3YVWQ2Xyb2ahNt69LYHHWrO+XQ60YYTa3r8Gn3
-7dFR3I016/jyn5DeEVaglvS1dfj2UG4ybR4KkMfcKd94X0rKvz3wzAhHIh+hwMtv
-sVk7V4vSnKf2mJXwIVECTolnEJEkCjWjjymgUJYKT8yN7JnAsHRcvMa6kWwIGrLp
-oQCEaJwYM6ynCRS989pLt3vA2iu5VkYhiHXJ9Ds/5b5yzhzmj+ymzKbFKrrUUrmn
-+2Jp1K0CgYEAw8BchALsD/+JuoXjinA14MH7PZjIsXyhtPk+c4pk42iMNyg1J8XF
-Y/ITepLYsl2bZqQI1jOJdDqsTwIsva9r749lsmkYI3VOxhi7+qBK0sThR66C87lX
-iU2QpnZ9NloC6ort4a3MEvZ/gRQcXdBrNlNoza2p7PHAVDTnsdSrNKUCgYEAxCQV
-uo85oZyfnMufn/gcI9IeYOgiB0tO3a8cAFX2wQW1y935t6Z13ApUQc4EnCOH7ZBc
-td5kT+xGdRWnfPZ38FM1dd5MBdGE69s3q8pJDUExSgNLqaF6/5bD32qui66L3ugu
-eMjxrzqJsc2uQTPCs18SGsyRmf54DpY8HglOmUcCgYAGRDgx+a347SNJl1OrcOAo
-q80RMbzrAaRjmL8JD9se9I/YjC73cPtasbsx51WMkDaTWJj30nqJ//7YIKeyAtWf
-u6Vzyq19JRo6eTw7T7pVePwFQW7rwnks6hDBY3WqscL6IyxuVxP7X2zBgxVNY4ir
-Gox2WSLhdPPFPlRUewxoCQKBgAJvqE1u5fpZ5ame5dao0ECppXLyrymEB/C88g4X
-Az+WgJGNqkJbsO8QuccvdeMylcefmWcw4fIULzPZFwF4VjkH74wNPMh9t7buPBzI
-IGwnuSMAM3ph5RMzni8yNgTKIDaej6U0abwRcBBjS5zHtc1giusGS3CsNnWH7Cs7
-VlyVAoGBAK+prq9t9x3tC3NfCZH8/Wfs/X0T1qm11RiL5+tOhmbguWAqSSBy8OjX
-Yh8AOXrFuMGldcaTXxMeiKvI2cyybnls1MFsPoeV/fSMJbex7whdeJeTi66NOSKr
-oftUHvkHS0Vv/LicMEOufFGslb4T9aPJ7oyhoSlz9CfAutDWk/q/
------END RSA PRIVATE KEY-----

.buildkite/make.mjs

@@ -1,140 +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'
-
-// xz/globals loads minimist-parsed args as a global `argv`, but it
-// interprets args like '8.10' as numbers and shortens them to '8.1'.
-// so we have to import and configure minimist ourselves.
-import minimist from 'minimist'
-const argv = minimist(process.argv.slice(2), { string: ['_', 'task'] })
-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')
-  let [version] = args
-  const packageJson = JSON.parse(await readFile(
-    join(import.meta.url, '..', 'package.json'),
-    'utf8'
-  ))
-
-  if (version.split('.').length === 2) version = `${version}.0`
-  const cleanVersion = semver.clean(version.includes('SNAPSHOT') ? version.split('-')[0] : version)
-  assert(semver.valid(cleanVersion), `${cleanVersion} is not seen as a valid semver version. raw version: ${version}`)
-  packageJson.version = cleanVersion
-  packageJson.versionCanary = `${cleanVersion}-canary.0`
-
-  await writeFile(
-    join(import.meta.url, '..', 'package.json'),
-    JSON.stringify(packageJson, null, 2),
-    'utf8'
-  )
-
-  const pipeline = await readFile(join(import.meta.url, '..', '.buildkite', 'pipeline.yml'), 'utf8')
-  await writeFile(
-    join(import.meta.url, '..', '.buildkite', 'pipeline.yml'),
-    pipeline.replace(/STACK_VERSION: [0-9]+[0-9\.]*[0-9](?:\-SNAPSHOT)?/, `STACK_VERSION: ${cleanVersion}`),
-    'utf8'
-  )
-}
-
-// this command can only be executed locally for now
-async function codegen (args) {
-  assert(args.length === 1, 'Codegen task expects one parameter')
-  const version = args[0].toString()
-
-  const clientGeneratorPath = join(import.meta.url, '..', '..', 'elastic-client-generator-js')
-  const isGeneratorCloned = await $`[[ -d ${clientGeneratorPath} ]]`.exitCode === 0
-  assert(isGeneratorCloned, 'You must clone the elastic-client-generator-js first')
-
-  await $`npm install --prefix ${clientGeneratorPath}`
-
-  // generate elasticsearch client. 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('.')}`
-  }
-  // clean up fixable linter issues
-  await $`npm run fix --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`
-
-  // run docs example generation
-  if (version === 'main') {
-    await $`node ./scripts/generate-docs-examples.js`
-  } else {
-    await $`node ./scripts/generate-docs-examples.js ${version.split('.').slice(0, 2).join('.')}`
-  }
-}
-
-function onError (err) {
-  console.log(err)
-  process.exit(1)
-}

.buildkite/pipeline.yml

@@ -1,32 +0,0 @@
----
-steps:
-  - label: ":elasticsearch: :javascript: ES JavaScript ({{ matrix.nodejs }}) Test Suite: {{ matrix.suite }}"
-    agents:
-      provider: "gcp"
-    env:
-      NODE_VERSION: "{{ matrix.nodejs }}"
-      TEST_SUITE: "{{ matrix.suite }}"
-      STACK_VERSION: 8.16.0
-    matrix:
-      setup:
-        suite:
-          - "free"
-          - "platinum"
-        nodejs:
-          - "18"
-          - "20"
-          - "22"
-    command: ./.buildkite/run-tests.sh
-    artifact_paths: "./junit-output/junit-*.xml"
-  - wait: ~
-    continue_on_failure: true
-  - label: ":junit: Test results"
-    agents:
-      provider: "gcp"
-      image: family/core-ubuntu-2204
-    plugins:
-      - junit-annotate#v2.6.0:
-          artifacts: "junit-output/junit-*.xml"
-          job-uuid-file-pattern: "junit-(.*).xml"
-          fail-build-on-error: true
-          failure-format: file

.buildkite/pull-requests.json

@@ -1,19 +0,0 @@
-{
-  "jobs": [
-    {
-      "enabled": true,
-      "pipeline_slug": "elasticsearch-js-integration-tests",
-      "allowed_repo_permissions": ["admin", "write"],
-      "build_on_commit": true,
-      "skip_ci_on_only_changed": [
-        "\\.md$",
-        "\\.asciidoc$",
-        "^docs\\/",
-        "^scripts\\/",
-        "^catalog-info\\.yaml$",
-        "^test\\/unit\\/",
-        "^\\.github\\/"
-      ]
-    }
-  ]
-}

.buildkite/run-client.sh

@@ -1,31 +0,0 @@
-#!/usr/bin/env bash
-#
-# Once called Elasticsearch should be up and running
-#
-script_path=$(dirname "$(realpath -s "$0")")
-set -euo pipefail
-repo=$(pwd)
-
-export NODE_VERSION=${NODE_VERSION:-18}
-
-echo "--- :javascript: Building Docker image"
-docker build \
-       --file "$script_path/Dockerfile" \
-       --tag elastic/elasticsearch-js \
-       --build-arg NODE_VERSION="$NODE_VERSION" \
-       .
-
-echo "--- :javascript: Running $TEST_SUITE tests"
-mkdir -p "$repo/junit-output"
-docker run \
-       --network="${network_name}" \
-       --env "TEST_ES_SERVER=${elasticsearch_url}" \
-       --env "ELASTIC_PASSWORD=${elastic_password}" \
-       --env "TEST_SUITE=${TEST_SUITE}" \
-       --env "ELASTIC_USER=elastic" \
-       --env "BUILDKITE=true" \
-       --volume "$repo/junit-output:/junit-output" \
-       --name elasticsearch-js \
-       --rm \
-       elastic/elasticsearch-js \
-       bash -c "npm run test:integration; [ -f ./$TEST_SUITE-report-junit.xml ] && mv ./$TEST_SUITE-report-junit.xml /junit-output/junit-$BUILDKITE_JOB_ID.xml || echo 'No JUnit artifact found'"

.buildkite/run-elasticsearch.sh

@@ -1,155 +0,0 @@
-#!/usr/bin/env bash
-#
-# Launch one or more Elasticsearch nodes via the Docker image,
-# 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 NUMBER_OF_NODES variable to start more than 1 node
-
-# Version 1.6.1
-# - Initial version of the run-elasticsearch.sh script
-# - Deleting the volume should not dependent on the container still running
-# - Fixed `ES_JAVA_OPTS` config
-# - Moved to STACK_VERSION and TEST_VERSION
-# - 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
-set -euo pipefail
-
-echo -e "\033[34;1mINFO:\033[0m Take down node if called twice with the same arguments (DETACH=true) or on separate terminals \033[0m"
-cleanup_node $es_node_name
-
-master_node_name=${es_node_name}
-cluster_name=${moniker}${suffix}
-
-# Set vm.max_map_count kernel setting to 262144
-if [ "$(sysctl vm.max_map_count)" != 'vm.max_map_count = 262144' ]; then
-  echo "vm.max_map_count may be too low. resetting."
-  sudo sysctl -w vm.max_map_count=262144
-fi
-
-declare -a volumes
-environment=($(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
-  --env discovery.seed_hosts=$master_node_name
-  --env cluster.routing.allocation.disk.threshold_enabled=false
-  --env bootstrap.memory_lock=true
-  --env node.attr.testattr=test
-  --env path.repo=/tmp
-  --env repositories.url.allowed_urls=http://snapshot.test*
-  --env action.destructive_requires_name=false
-  --env ingest.geoip.downloader.enabled=false
-  --env cluster.deprecation_indexing.enabled=false
-END
-))
-if [[ "$TEST_SUITE" == "platinum" ]]; then
-  environment+=($(cat <<-END
-    --env xpack.security.enabled=true
-    --env xpack.license.self_generated.type=trial
-    --env xpack.security.http.ssl.enabled=true
-    --env xpack.security.http.ssl.verification_mode=certificate
-    --env xpack.security.http.ssl.key=certs/testnode.key
-    --env xpack.security.http.ssl.certificate=certs/testnode.crt
-    --env xpack.security.http.ssl.certificate_authorities=certs/ca.crt
-    --env xpack.security.transport.ssl.enabled=true
-    --env xpack.security.transport.ssl.verification_mode=certificate
-    --env xpack.security.transport.ssl.key=certs/testnode.key
-    --env xpack.security.transport.ssl.certificate=certs/testnode.crt
-    --env xpack.security.transport.ssl.certificate_authorities=certs/ca.crt
-END
-))
-  volumes+=($(cat <<-END
-    --volume $ssl_cert:/usr/share/elasticsearch/config/certs/testnode.crt
-    --volume $ssl_key:/usr/share/elasticsearch/config/certs/testnode.key
-    --volume $ssl_ca:/usr/share/elasticsearch/config/certs/ca.crt
-END
-))
-else
-  environment+=($(cat <<-END
-    --env node.roles=data,data_cold,data_content,data_frozen,data_hot,data_warm,ingest,master,ml,remote_cluster_client,transform
-    --env xpack.security.enabled=false
-    --env xpack.security.http.ssl.enabled=false
-END
-))
-fi
-
-cert_validation_flags=""
-if [[ "$TEST_SUITE" == "platinum" ]]; then
-  cert_validation_flags="--insecure --cacert /usr/share/elasticsearch/config/certs/ca.crt --resolve ${es_node_name}:443:127.0.0.1"
-fi
-
-echo "--- :elasticsearch: Environment setup"
-echo "TEST_SUITE: $TEST_SUITE"
-echo "Elasticsearch URL: $elasticsearch_url"
-echo "Elasticsearch External URL: $external_elasticsearch_url"
-
-
-echo "--- :elasticsearch: Running container"
-# Pull the container, retry on failures up to 5 times with
-# short delays between each attempt. Fixes most transient network errors.
-docker_pull_attempts=0
-until [ "$docker_pull_attempts" -ge 5 ]
-do
-   docker pull docker.elastic.co/elasticsearch/"$elasticsearch_container" && break
-   docker_pull_attempts=$((docker_pull_attempts+1))
-   echo "Failed to pull image, retrying in 10 seconds (retry $docker_pull_attempts/5)..."
-   sleep 10
-done
-
-NUMBER_OF_NODES=${NUMBER_OF_NODES-1}
-http_port=9200
-for (( i=0; i<$NUMBER_OF_NODES; i++, http_port++ )); do
-  node_name=${es_node_name}$i
-  node_url=${external_elasticsearch_url/9200/${http_port}}$i
-  if [[ "$i" == "0" ]]; then node_name=$es_node_name; fi
-  environment+=($(cat <<-END
-    --env node.name=$node_name
-END
-))
-  echo "$i: $http_port $node_url "
-  volume_name=${node_name}-${suffix}-data
-  volumes+=($(cat <<-END
-    --volume $volume_name:/usr/share/elasticsearch/data${i}
-END
-))
-
-  # make sure we detach for all but the last node if DETACH=false (default) so all nodes are started
-  local_detach="true"
-  if [[ "$i" == "$((NUMBER_OF_NODES-1))" ]]; then local_detach=$DETACH; fi
-  echo -e "\033[34;1mINFO:\033[0m Starting container $node_name \033[0m"
-  set -x
-  docker run \
-    --name "$node_name" \
-    --network "$network_name" \
-    --env "ES_JAVA_OPTS=-Xms1g -Xmx1g -da:org.elasticsearch.xpack.ccr.index.engine.FollowingEngineAssertions" \
-    "${environment[@]}" \
-    "${volumes[@]}" \
-    --publish "$http_port":9200 \
-    --ulimit nofile=65536:65536 \
-    --ulimit memlock=-1:-1 \
-    --detach="$local_detach" \
-    --health-cmd="curl $cert_validation_flags --fail $elasticsearch_url/_cluster/health || exit 1" \
-    --health-interval=2s \
-    --health-retries=20 \
-    --health-timeout=2s \
-    --rm \
-    docker.elastic.co/elasticsearch/"$elasticsearch_container";
-
-  set +x
-  if wait_for_container "$es_node_name" "$network_name"; then
-    echo -e "\033[32;1mSUCCESS:\033[0m Running on: $node_url\033[0m"
-  fi
-done

.buildkite/run-tests.sh

@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-#
-# Script to run Elasticsearch container and Elasticsearch client integration tests on Buildkite
-#
-# Version 0.1
-#
-script_path=$(dirname "$(realpath -s "$0")")
-source "$script_path/functions/imports.sh"
-
-set -euo pipefail
-
-echo "--- :elasticsearch: Starting Elasticsearch"
-DETACH=true bash "$script_path/run-elasticsearch.sh"
-
-echo "+++ :javascript: Run Client"
-bash "$script_path/run-client.sh"

.ci/Dockerfile

@@ -0,0 +1,11 @@
+ARG NODE_JS_VERSION=10
+FROM node:${NODE_JS_VERSION}
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install app dependencies
+COPY package*.json ./
+RUN npm install
+
+COPY . .

.ci/certs/testnode.crt

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

.ci/certs/testnode.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

.ci/docker-compose.yml

@@ -0,0 +1,94 @@
+version: '3.2'
+services:
+  client-oss:
+    image: docker.elastic.co/clients/elasticsearch-js:${NODE_JS_VERSION:-10}
+    build:
+      context: ..
+      dockerfile: .ci/Dockerfile
+      args:
+          NODE_JS_VERSION: ${NODE_JS_VERSION:-10}
+          CODECOV_TOKEN: ${CODECOV_TOKEN}
+    environment:
+      - "TEST_ES_SERVER=http://elasticsearch-oss:9200"
+    volumes:
+      - ..:/usr/src/app
+      # This will mount the node_modules directory
+      # to the host machine using the buildtime directory.
+      - /usr/src/app/node_modules
+      - esvol:/tmp
+    networks:
+      - esnet-oss
+    depends_on:
+      - elasticsearch-oss
+
+  elasticsearch-oss:
+    image: docker.elastic.co/elasticsearch/elasticsearch-oss:${ELASTICSEARCH_VERSION:-6.6.2}
+    volumes:
+      - esvol:/tmp
+    networks:
+      - esnet-oss
+    environment:
+      - path.repo=/tmp
+      - "repositories.url.allowed_urls=http://snapshot.*"
+      - node.attr.testattr=test
+      - bootstrap.memory_lock=false
+      - "discovery.type=single-node"
+      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
+
+  client-platinum:
+    image: docker.elastic.co/clients/elasticsearch-js:${NODE_JS_VERSION:-10}
+    build:
+      context: ..
+      dockerfile: .ci/Dockerfile
+      args:
+          NODE_JS_VERSION: ${NODE_JS_VERSION:-10}
+    environment:
+      - "TEST_ES_SERVER=https://elastic:changeme@elasticsearch-platinum:9200"
+    volumes:
+      - ..:/usr/src/app
+      # This will mount the node_modules directory
+      # to the host machine using the buildtime directory.
+      - /usr/src/app/node_modules
+      - esvol:/tmp
+    networks:
+      - esnet-platinum
+    depends_on:
+      - elasticsearch-platinum
+    # there is not need to run again also the unit test
+    command: ["npm", "run", "test:integration"]
+
+  elasticsearch-platinum:
+    image: docker.elastic.co/elasticsearch/elasticsearch:${ELASTICSEARCH_VERSION:-6.6.2}
+    ports:
+      - "9200:9200"
+    networks:
+      - esnet-platinum
+    environment:
+      - "node.attr.testattr=test"
+      - "path.repo=/tmp"
+      - "repositories.url.allowed_urls=http://snapshot.*"
+      - "discovery.type=single-node"
+      - "ES_JAVA_OPTS=-Xms1g -Xmx1g"
+      - "ELASTIC_PASSWORD=changeme"
+      - "xpack.security.enabled=true"
+      - "xpack.license.self_generated.type=trial"
+      - "xpack.security.http.ssl.enabled=true"
+      - "xpack.security.http.ssl.verification_mode=certificate"
+      - "xpack.security.http.ssl.key=certs/testnode.key"
+      - "xpack.security.http.ssl.certificate=certs/testnode.crt"
+      - "xpack.security.http.ssl.certificate_authorities=certs/ca.crt"
+      - "xpack.security.transport.ssl.enabled=true"
+      - "xpack.security.transport.ssl.key=certs/testnode.key"
+      - "xpack.security.transport.ssl.certificate=certs/testnode.crt"
+      - "xpack.security.transport.ssl.certificate_authorities=certs/ca.crt"
+    volumes:
+      - "./certs/testnode.crt:/usr/share/elasticsearch/config/certs/testnode.crt"
+      - "./certs/testnode.key:/usr/share/elasticsearch/config/certs/testnode.key"
+      - "./certs/ca.crt:/usr/share/elasticsearch/config/certs/ca.crt"
+
+networks:
+  # we need two networks otherwise the two ES instances will join each other
+  esnet-oss:
+  esnet-platinum:
+volumes:
+  esvol:

.ci/docker/Dockerfile

@@ -0,0 +1,7 @@
+ARG NODE_JS_VERSION=10
+FROM node:${NODE_JS_VERSION}-alpine
+
+RUN apk --no-cache add git
+
+# Create app directory
+WORKDIR /usr/src/app

.ci/functions/cleanup.sh

@@ -2,7 +2,7 @@
 #
 # Shared cleanup routines between different steps
 #
-# Please source .buildkite/functions/imports.sh as a whole not just this file
+# Please source .ci/functions/imports.sh as a whole not just this file
 #
 # Version 1.0.0
 # - Initial version after refactor

.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/functions/wait-for-container.sh

@@ -2,7 +2,7 @@
 #
 # Exposes a routine scripts can call to wait for a container if that container set up a health command
 #
-# Please source .buildkite/functions/imports.sh as a whole not just this file
+# Please source .ci/functions/imports.sh as a whole not just this file
 #
 # Version 1.0.1
 # - Initial version after refactor

.ci/jobs/defaults.yml

@@ -0,0 +1,74 @@
+
+
+##### GLOBAL METADATA
+
+- meta:
+    cluster: clients-ci
+
+##### JOB DEFAULTS
+
+- job:
+    project-type: matrix
+    logrotate:
+      daysToKeep: 30
+      numToKeep: 100
+    properties:
+    - github:
+        url: https://github.com/elastic/elasticsearch-js/
+    - inject:
+        properties-content: HOME=$JENKINS_HOME
+    concurrent: true
+    node: flyweight
+    scm:
+    - git:
+        name: origin
+        credentials-id: f6c7695a-671e-4f4f-a331-acdce44ff9ba
+        reference-repo: /var/lib/jenkins/.git-references/elasticsearch-js.git
+        branches:
+        - ${branch_specifier}
+        url: https://github.com/elastic/elasticsearch-js.git
+        wipe-workspace: 'True'
+    triggers:
+    - github
+    vault:
+      # vault read auth/approle/role/clients-ci/role-id
+      role_id: ddbd0d44-0e51-105b-177a-c8fdfd445126
+    axes:
+    - axis:
+        type: slave
+        name: label
+        values:
+        - linux
+    - axis:
+        type: yaml
+        filename: .ci/test-matrix.yml
+        name: STACK_VERSION
+    - axis:
+        type: yaml
+        filename: .ci/test-matrix.yml
+        name: NODE_JS_VERSION
+    - axis:
+        type: yaml
+        filename: .ci/test-matrix.yml
+        name: TEST_SUITE
+    yaml-strategy:
+      exclude-key: exclude
+      filename: .ci/test-matrix.yml
+    wrappers:
+    - ansicolor
+    - timeout:
+        type: absolute
+        timeout: 120
+        fail: true
+    - timestamps
+    - workspace-cleanup
+    builders:
+    - shell: |-
+        #!/usr/local/bin/runbld
+        .ci/run-tests
+    publishers:
+    - email:
+        recipients: infra-root+build@elastic.co
+    # - junit:
+    #     results: "*-junit.xml"
+    #     allow-empty-results: true

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

@@ -0,0 +1,14 @@
+---
+- job:
+    name: elastic+elasticsearch-js+5.x
+    display-name: 'elastic / elasticsearch-js # 5.x'
+    description: Testing the elasticsearch-js 5.x branch.
+    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

@@ -0,0 +1,14 @@
+---
+- job:
+    name: elastic+elasticsearch-js+6.x
+    display-name: 'elastic / elasticsearch-js # 6.x'
+    description: Testing the elasticsearch-js 6.x branch.
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/6.x
+        description: the Git branch specifier to build (<branchName>, <tagName>,
+          <commitId>, etc.)
+    triggers:
+    - github
+    - timed: '@weekly'

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

@@ -0,0 +1,14 @@
+---
+- job:
+    name: elastic+elasticsearch-js+7.x
+    display-name: 'elastic / elasticsearch-js # 7.x'
+    description: Testing the elasticsearch-js 7.x branch.
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/7.x
+        description: the Git branch specifier to build (<branchName>, <tagName>,
+          <commitId>, etc.)
+    triggers:
+    - github
+    - timed: '@weekly'

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

@@ -0,0 +1,14 @@
+---
+- job:
+    name: elastic+elasticsearch-js+master
+    display-name: 'elastic / elasticsearch-js # master'
+    description: Testing the elasticsearch-js master branch.
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/master
+        description: the Git branch specifier to build (<branchName>, <tagName>,
+          <commitId>, etc.)
+    triggers:
+    - github
+    - timed: '@daily'

.ci/jobs/elastic+elasticsearch-js+pull-request.yml

@@ -0,0 +1,19 @@
+---
+- job:
+    name: elastic+elasticsearch-js+pull-request
+    display-name: 'elastic / elasticsearch-js # pull-request'
+    description: Testing of elasticsearch-js pull requests.
+    scm:
+    - git:
+        branches:
+        - ${ghprbActualCommit}
+        refspec: +refs/pull/*:refs/remotes/origin/pr/*
+    triggers:
+    - github-pull-request:
+        org-list:
+        - elastic
+        allow-whitelist-orgs-as-admins: true
+        github-hooks: true
+        status-context: clients-ci
+        cancel-builds-on-update: true
+    publishers: []

.ci/packer_cache.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+source /usr/local/bin/bash_standard_lib.sh
+
+DOCKER_IMAGES="node:12-alpine
+node:10-alpine
+node:8-alpine
+"
+
+for di in ${DOCKER_IMAGES}
+do
+(retry 2 docker pull "${di}") || echo "Error pulling ${di} Docker image, we continue"
+done
+

.ci/run-elasticsearch.sh

@@ -0,0 +1,175 @@
+#!/usr/bin/env bash
+#
+# Launch one or more Elasticsearch nodes via the Docker image,
+# to form a cluster suitable for running the REST API tests.
+#
+# Export the ELASTICSEARCH_VERSION variable, eg. 'elasticsearch:8.0.0-SNAPSHOT'.
+
+if [[ -z "$ELASTICSEARCH_VERSION" ]]; then
+  echo -e "\033[31;1mERROR:\033[0m Required environment variable [ELASTICSEARCH_VERSION] not set\033[0m"
+  exit 1
+fi
+
+set -euxo pipefail
+
+moniker=$(echo "$ELASTICSEARCH_VERSION" | tr -C "[:alnum:]" '-')
+suffix=rest-test
+
+NODE_NAME=${NODE_NAME-${moniker}node1}
+MASTER_NODE_NAME=${MASTER_NODE_NAME-${NODE_NAME}}
+CLUSTER_NAME=${CLUSTER_NAME-${moniker}${suffix}}
+HTTP_PORT=${HTTP_PORT-9200}
+
+ELASTIC_PASSWORD=${ELASTIC_PASSWORD-changeme}
+SSL_CERT=${SSL_CERT-"$PWD/certs/testnode.crt"}
+SSL_KEY=${SSL_KEY-"$PWD/certs/testnode.key"}
+SSL_CA=${SSL_CA-"$PWD/certs/ca.crt"}
+
+DETACH=${DETACH-false}
+CLEANUP=${CLEANUP-false}
+
+volume_name=${NODE_NAME}-${suffix}-data
+network_default=${moniker}${suffix}
+NETWORK_NAME=${NETWORK_NAME-"$network_default"}
+
+set +x
+
+function cleanup_volume {
+  if [[ "$(docker volume ls -q -f name=$1)" ]]; then
+    echo -e "\033[34;1mINFO:\033[0m Removing volume $1\033[0m"
+    (docker volume rm "$1") || true
+  fi
+}
+function cleanup_node {
+  if [[ "$(docker ps -q -f name=$1)" ]]; then
+    echo -e "\033[34;1mINFO:\033[0m Removing container $1\033[0m"
+    (docker container rm --force --volumes "$1") || true
+    cleanup_volume "$1-${suffix}-data"
+  fi
+}
+function cleanup_network {
+  if [[ "$(docker network ls -q -f name=$1)" ]]; then
+    echo -e "\033[34;1mINFO:\033[0m Removing network $1\033[0m"
+    (docker network rm "$1") || true
+  fi
+}
+
+function cleanup {
+  if [[ "$DETACH" != "true" ]] || [[ "$1" == "1" ]]; then
+    echo -e "\033[34;1mINFO:\033[0m clean the node and volume on startup (1) OR on exit if not detached\033[0m"
+    cleanup_node "$NODE_NAME"
+  fi
+  if [[ "$DETACH" != "true" ]]; then
+    echo -e "\033[34;1mINFO:\033[0m clean the network if not detached (start and exit)\033[0m"
+    cleanup_network "$NETWORK_NAME"
+  fi
+};
+trap "cleanup 0" EXIT
+
+if [[ "$CLEANUP" == "true" ]]; then
+  trap - EXIT
+  if [[ -z "$(docker network ls -q -f name=${NETWORK_NAME})" ]]; then
+    echo -e "\033[34;1mINFO:\033[0m $NETWORK_NAME is already deleted\033[0m"
+    exit 0
+  fi
+  containers=$(docker network inspect -f '{{ range $key, $value := .Containers }}{{ printf "%s\n" .Name}}{{ end }}' ${NETWORK_NAME})
+  while read -r container; do
+    cleanup_node "$container"
+  done <<< "$containers"
+  cleanup_network "$NETWORK_NAME"
+  echo -e "\033[32;1mSUCCESS:\033[0m Cleaned up and exiting\033[0m"
+  exit 0
+fi
+
+echo -e "\033[34;1mINFO:\033[0m Making sure previous run leftover infrastructure is removed \033[0m"
+cleanup 1
+
+echo -e "\033[34;1mINFO:\033[0m Creating network $NETWORK_NAME if it does not exist already \033[0m"
+docker network inspect "$NETWORK_NAME" > /dev/null 2>&1 || docker network create "$NETWORK_NAME"
+
+environment=($(cat <<-END
+  --env node.name=$NODE_NAME
+  --env cluster.name=$CLUSTER_NAME
+  --env cluster.routing.allocation.disk.threshold_enabled=false
+  --env bootstrap.memory_lock=true
+  --env node.attr.testattr=test
+  --env path.repo=/tmp
+  --env repositories.url.allowed_urls=http://snapshot.test*
+END
+))
+
+volumes=($(cat <<-END
+  --volume $volume_name:/usr/share/elasticsearch/data
+END
+))
+
+if [[ "$ELASTICSEARCH_VERSION" != *oss* ]]; then
+  environment+=($(cat <<-END
+    --env ELASTIC_PASSWORD=$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.key=certs/testnode.key
+    --env xpack.security.transport.ssl.certificate=certs/testnode.crt
+    --env xpack.security.transport.ssl.certificate_authorities=certs/ca.crt
+END
+))
+  volumes+=($(cat <<-END
+    --volume $SSL_CERT:/usr/share/elasticsearch/config/certs/testnode.crt
+    --volume $SSL_KEY:/usr/share/elasticsearch/config/certs/testnode.key
+    --volume $SSL_CA:/usr/share/elasticsearch/config/certs/ca.crt
+END
+))
+fi
+
+url="http://$NODE_NAME"
+if [[ "$ELASTICSEARCH_VERSION" != *oss* ]]; then
+  url="https://elastic:$ELASTIC_PASSWORD@$NODE_NAME"
+fi
+
+echo -e "\033[34;1mINFO:\033[0m Starting container $NODE_NAME \033[0m"
+set -x
+docker run \
+  --name "$NODE_NAME" \
+  --network "$NETWORK_NAME" \
+  --env ES_JAVA_OPTS=-"Xms1g -Xmx1g" \
+  "${environment[@]}" \
+  "${volumes[@]}" \
+  --publish "$HTTP_PORT":9200 \
+  --ulimit nofile=65536:65536 \
+  --ulimit memlock=-1:-1 \
+  --detach="$DETACH" \
+  --health-cmd="curl --silent --insecure --fail $url:9200/_cluster/health || exit 1" \
+  --health-interval=2s \
+  --health-retries=20 \
+  --health-timeout=2s \
+  --rm \
+  docker.elastic.co/elasticsearch/"$ELASTICSEARCH_VERSION";
+set +x
+
+if [[ "$DETACH" == "true" ]]; then
+  until [[ "$(docker inspect -f "{{.State.Health.Status}}" ${NODE_NAME})" != "starting" ]]; do
+    sleep 2;
+    echo ""
+    echo -e "\033[34;1mINFO:\033[0m waiting for node $NODE_NAME to be up\033[0m"
+  done;
+  # Always show the node getting started logs, this is very useful both on CI as well as while developing
+  docker logs "$NODE_NAME"
+  if [[ "$(docker inspect -f "{{.State.Health.Status}}" ${NODE_NAME})" != "healthy" ]]; then
+    cleanup 1
+    echo
+    echo -e "\033[31;1mERROR:\033[0m Failed to start ${ELASTICSEARCH_VERSION} in detached mode beyond health checks\033[0m"
+    echo -e "\033[31;1mERROR:\033[0m dumped the docker log before shutting the node down\033[0m"
+    exit 1
+  else
+    echo
+    echo -e "\033[32;1mSUCCESS:\033[0m Detached and healthy: ${NODE_NAME} on docker network: ${NETWORK_NAME}\033[0m"
+    echo -e "\033[32;1mSUCCESS:\033[0m Running on: ${url/$NODE_NAME/localhost}:${HTTP_PORT}\033[0m"
+    exit 0
+  fi
+fi

.ci/run-tests

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+#
+# Runs the client tests via Docker with the expectation that the required
+# environment variables have already been exported before running this script.
+#
+# The required environment variables include:
+#
+#   - $ELASTICSEARCH_VERSION
+#   - $NODE_JS_VERSION
+#   - $TEST_SUITE
+#
+
+set -eo pipefail
+
+ELASTICSEARCH_VERSION=${STACK_VERSION}
+
+docker build \
+  --file .ci/Dockerfile \
+  --tag elastic/elasticsearch-js \
+  --build-arg NODE_JS_VERSION=${NODE_JS_VERSION} \
+  .
+
+NODE_NAME="es1"
+repo=$(pwd)
+testnodecrt="/.ci/certs/testnode.crt"
+testnodekey="/.ci/certs/testnode.key"
+cacrt="/.ci/certs/ca.crt"
+
+elasticsearch_image="elasticsearch"
+elasticsearch_url="https://elastic:changeme@${NODE_NAME}:9200"
+if [[ $TEST_SUITE != "xpack" ]]; then
+  elasticsearch_image="elasticsearch-oss"
+  elasticsearch_url="http://${NODE_NAME}:9200"
+fi
+
+ELASTICSEARCH_VERSION="${elasticsearch_image}:${ELASTICSEARCH_VERSION}" \
+  NODE_NAME="${NODE_NAME}" \
+  NETWORK_NAME="esnet" \
+  DETACH=true \
+  SSL_CERT="${repo}${testnodecrt}" \
+  SSL_KEY="${repo}${testnodekey}" \
+  SSL_CA="${repo}${cacrt}" \
+  bash .ci/run-elasticsearch.sh
+
+docker run \
+  --network=esnet \
+  --env "TEST_ES_SERVER=${elasticsearch_url}" \
+  --volume $repo:/usr/src/app \
+  --volume /usr/src/app/node_modules \
+  --name elasticsearch-js \
+  --rm \
+  elastic/elasticsearch-js \
+  npm run test:integration
+

.ci/test-matrix.yml

@@ -0,0 +1,14 @@
+---
+STACK_VERSION:
+  - 6.8.4
+
+NODE_JS_VERSION:
+  - 12
+  - 10
+  - 8
+
+TEST_SUITE:
+  - oss
+  - xpack
+
+exclude: ~

.dockerignore

@@ -3,6 +3,3 @@ npm-debug.log
 test/benchmarks
 elasticsearch
 .git
-lib
-junit-output
-.tap

.github/ISSUE_TEMPLATE.md

@@ -3,7 +3,7 @@
 #### You have already researched for similar issues?
 It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
 
-#### Are you sure this is an issue with `@elastic/elasticsearch` or are you just looking for some help?
+#### Are you sure this is an issue with @elastic/elasticsearch or are you just looking for some help?
 
 Issues should only be posted in this repository after you have been able to reproduce them and confirm that they are a bug or incorrect/missing information in the [docs](https://github.com/elastic/elasticsearch-js/docs).
 

.github/ISSUE_TEMPLATE/bug.md

@@ -0,0 +1,41 @@
+---
+name: 🐛 Bug report
+about: Create a report to help us improve
+---
+
+It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
+
+**Please read this entire template before posting any issue. If you ignore these instructions
+and post an issue here that does not follow the instructions, your issue might be closed,
+locked, and assigned the `not reproducible` label.**
+
+## 🐛 Bug Report
+
+A clear and concise description of what the bug is.
+
+## To Reproduce
+
+Steps to reproduce the behavior:
+
+Paste your code here:
+
+```js
+
+```
+
+## Expected behavior
+
+A clear and concise description of what you expected to happen.
+
+Paste the results here:
+
+```js
+
+```
+
+## Your Environment
+
+- *node version*: 6,8,10
+- *@elastic/elasticsearch version*: >=7.0.0
+- *os*: Mac, Windows, Linux
+- *any other relevant information*

.github/ISSUE_TEMPLATE/bug.yaml

@@ -1,66 +0,0 @@
----
-name: 🐛 Bug report
-description: Create a report to help us improve
-labels: ["Category: Bug"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
-
-        **Please read this entire template before posting any issue. If you ignore these instructions
-        and post an issue here that does not follow the instructions, your issue might be closed,
-        locked, and assigned the `Category: Not an issue` label.**
-
-  - type: textarea
-    id: bug-report
-    attributes:
-      label: 🐛 Bug report
-      description: A clear and concise description of what the bug is.
-    validations:
-      required: true
-
-  - type: textarea
-    id: reproduction
-    attributes:
-      label: To reproduce
-      description: Steps to reproduce the behavior
-    validations:
-      required: true
-
-  - type: textarea
-    id: expected
-    attributes:
-      label: Expected behavior
-      description: A clear and concise description of what you expected to happen.
-    validations:
-      required: true
-
-  - type: input
-    id: node-js-version
-    attributes:
-      label: Node.js version
-      placeholder: 18.x, 20.x, etc.
-    validations:
-      required: true
-
-  - type: input
-    id: client-version
-    attributes:
-      label: "@elastic/elasticsearch version"
-      placeholder: 7.17.0, 8.14.1, etc.
-    validations:
-      required: true
-
-  - type: input
-    id: os
-    attributes:
-      label: Operating system
-      placeholder: Ubuntu 22.04, macOS, etc.
-    validations:
-      required: true
-
-  - type: input
-    id: env-info
-    attributes:
-      label: Any other relevant environment information

.github/ISSUE_TEMPLATE/feature.md

@@ -0,0 +1,22 @@
+---
+name: 🚀 Feature Proposal
+about: Submit a proposal for a new feature
+---
+
+It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
+
+**Please read this entire template before posting any issue. If you ignore these instructions
+and post an issue here that does not follow the instructions, your issue might be closed,
+locked, and assigned the `invalid` label.**
+
+## 🚀 Feature Proposal
+
+A clear and concise description of what the feature is.
+
+## Motivation
+
+Please outline the motivation for the proposal.
+
+## Example
+
+Please provide an example for how this feature would be used.

.github/ISSUE_TEMPLATE/feature.yaml

@@ -1,33 +0,0 @@
----
-name: 🚀 Feature Proposal
-description: Submit a proposal for a new feature
-labels: ["Category: Feature"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
-
-        **Please read this entire template before posting any issue. If you ignore these instructions
-        and post an issue here that does not follow the instructions, your issue might be closed,
-        locked, and assigned the `Category: Not an issue` label.**
-
-  - type: textarea
-    id: feature-proposal
-    attributes:
-      label: 🚀 Feature Proposal
-      description: A clear and concise description of what the feature is.
-    validations:
-      required: true
-
-  - type: textarea
-    id: motivation
-    attributes:
-      label: Motivation
-      description: Please outline the motivation for the proposal.
-
-  - type: textarea
-    id: example
-    attributes:
-      label: Example
-      description: Please provide an example for how this feature would be used.

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,10 @@
+---
+name: 💬 Questions / Help
+about: If you have questions, please check our Gitter or Help repo
+---
+
+## 💬 Questions and Help
+
+### Please note that this issue tracker is not a help forum and this issue may be closed.
+
+It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.

.github/ISSUE_TEMPLATE/question.yaml

@@ -1,21 +0,0 @@
----
-name: 💬 Questions / Help
-description: If you have questions, please check our community forum or support
-labels: ["Category: Question"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        ### Please note that this issue tracker is not a help forum and this issue may be closed.
-
-        Please check our [community forum](https://discuss.elastic.co/) or [contact Elastic support](https://www.elastic.co/support) if your issue is not specifically related to the documented functionality of this client library.
-
-        It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
-
-  - type: textarea
-    id: question
-    attributes:
-      label: Question
-      description: Your question or comment
-    validations:
-      required: true

.github/ISSUE_TEMPLATE/regression.md

@@ -0,0 +1,47 @@
+---
+name: 💥 Regression Report
+about: Report unexpected behavior that worked in previous versions
+---
+
+It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
+
+**Please read this entire template before posting any issue. If you ignore these instructions
+and post an issue here that does not follow the instructions, your issue might be closed,
+locked, and assigned the `invalid` label.**
+
+## 💥 Regression Report
+
+A clear and concise description of what the regression is.
+
+## Last working version
+
+Worked up to version:
+
+Stopped working in version:
+
+## To Reproduce
+
+Steps to reproduce the behavior:
+
+Paste your code here:
+
+```js
+
+```
+
+## Expected behavior
+
+A clear and concise description of what you expected to happen.
+
+Paste the results here:
+
+```js
+
+```
+
+## Your Environment
+
+- *node version*: 6,8,10
+- *@elastic/elasticsearch version*: >=7.0.0
+- *os*: Mac, Windows, Linux
+- *any other relevant information*

.github/ISSUE_TEMPLATE/regression.yaml

@@ -1,92 +0,0 @@
----
-name: 💥 Regression Report
-description: Report unexpected behavior that worked in previous versions
-labels: ["Category: Bug"]
-body:
-  - type: markdown
-    attributes:
-      value: |
-        It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
-
-        **Please read this entire template before posting any issue. If you ignore these instructions
-        and post an issue here that does not follow the instructions, your issue might be closed,
-        locked, and assigned the `Category: Not an issue` label.**
-
-  - type: textarea
-    id: report
-    attributes:
-      label: Regression report
-      description: A clear and concise description of what the regression is.
-    validations:
-      required: true
-
-  - type: input
-    id: last-working-version
-    attributes:
-      label: Last working version
-      description: Version of `@elastic/elasticsearch` where this last worked.
-    validations:
-      required: true
-
-  - type: textarea
-    id: to-reproduce
-    attributes:
-      label: To reproduce
-      description: |
-        Paste your code here that shows how to reproduce the behavior.
-
-        In some cases, it might be challenging to reproduce the bug in a few lines of code.
-        You can fork the following repository, which contains all the configuration needed to spin up a three nodes Elasticsearch cluster with security enabled.
-        [This repository](https://github.com/delvedor/es-reproduce-issue) also contains a preconfigured client instance that you can use to reproduce the issue.
-    validations:
-      required: true
-
-  - type: textarea
-    id: expected-behavior
-    attributes:
-      label: Expected behavior
-      description: A clear and concise description of what you expected to happen.
-    validations:
-      required: true
-
-  - type: input
-    id: node-version
-    attributes:
-      label: Node.js version
-      description: What version of Node.js you are using (`node --version`).
-    validations:
-      required: true
-
-  - type: input
-    id: typescript-version
-    attributes:
-      label: TypeScript version
-      description: TypeScript version you are using, if applicable.
-
-  - type: input
-    id: elasticsearch-client-version
-    attributes:
-      label: Elasticsearch client version
-      description: What version of `@elastic/elasticsearch` and `@elastic/transport` you are using (`npm ls -a | grep '@elastic'`).
-    validations:
-      required: true
-
-  - type: input
-    id: elasticsearch-version
-    attributes:
-      label: Elasticsearch server version
-      description: What version of Elasticsearch you are using.
-    validations:
-      required: true
-
-  - type: input
-    id: operating-system
-    attributes:
-      label: Operating system
-      description: What operating system you are running.
-      placeholder: e.g. Linux, MacOS, Windows
-
-  - type: textarea
-    id: env-info
-    attributes:
-      label: Any other relevant environment information.

.github/ISSUE_TEMPLATE/security.md

@@ -0,0 +1,6 @@
+---
+name: 👮 Security Issue
+about: Responsible Disclosure
+---
+
+If you want to report a security issue, please take a look at [elastic/security](https://www.elastic.co/community/security).

.github/ISSUE_TEMPLATE/security.yaml

@@ -1,8 +0,0 @@
----
-name: 👮 Security Issue
-description: Responsible disclosure
-body:
-  - type: markdown
-    attributes:
-      value: |
-        If you want to report a security issue, please take a look at [elastic/security](https://www.elastic.co/community/security).

.github/make.sh

@@ -1,222 +0,0 @@
-#!/usr/bin/env bash
-# ------------------------------------------------------- #
-#
-# Build entry script for elasticsearch-js
-#
-# Must be called: ./.github/make.sh <target> <params>
-#
-# Version: 1.1.0
-#
-# Targets:
-# ---------------------------
-# assemble   <VERSION> : build client artifacts with version
-# bump       <VERSION> : bump client internals to version
-# bumpmatrix <VERSION> : bump stack version in test matrix 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/../")
-
-# shellcheck disable=SC1090
-CMD=$1
-TASK=$1
-TASK_ARGS=()
-VERSION=$2
-STACK_VERSION=$VERSION
-set -euo pipefail
-
-product="elastic/elasticsearch-js"
-output_folder=".buildkite/output"
-codegen_folder=".buildkite/output"
-OUTPUT_DIR="$repo/${output_folder}"
-NODE_JS_VERSION=22
-WORKFLOW=${WORKFLOW-staging}
-mkdir -p "$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"
-
-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 artifact $VERSION\033[0m"
-  TASK=release
-  TASK_ARGS=("$VERSION" "$output_folder")
-  ;;
-codegen)
-  if [ -v "$VERSION" ] || [[ -z "$VERSION" ]]; then
-    # fall back to branch name or `main` if no VERSION is set
-    branch_name=$(git rev-parse --abbrev-ref HEAD)
-    if [[ "$branch_name" =~ ^[0-9]+\.([0-9]+|x) ]]; then
-      echo -e "\033[36;1mTARGET: codegen -> No VERSION argument found, using branch name: \`$branch_name\`\033[0m"
-      VERSION="$branch_name"
-    else
-      echo -e "\033[36;1mTARGET: codegen -> No VERSION argument found, using \`main\`\033[0m"
-      VERSION="main"
-    fi
-  fi
-  if [ "$VERSION" = 'main' ]; then
-    echo -e "\033[36;1mTARGET: codegen API $VERSION\033[0m"
-  else
-    echo -e "\033[36;1mTARGET: codegen API v$VERSION\033[0m"
-  fi
-
-  TASK=codegen
-  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 $VERSION\033[0m"
-  TASK=codegen
-  TASK_ARGS=("$VERSION" "$codegen_folder")
-  ;;
-examplesgen)
-  echo -e "\033[36;1mTARGET: generate examples\033[0m"
-  TASK=codegen
-  TASK_ARGS=("$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 $VERSION\033[0m"
-  TASK=bump
-  TASK_ARGS=("$VERSION")
-  ;;
-bumpmatrix)
-  if [ -v $VERSION ]; then
-    echo -e "\033[31;1mTARGET: bumpmatrix -> missing version parameter\033[0m"
-    exit 1
-  fi
-  echo -e "\033[36;1mTARGET: bump stack in test matrix to version $VERSION\033[0m"
-  TASK=bumpmatrix
-  TASK_ARGS=("$VERSION")
-  ;;
-*)
-  echo -e "\n'$CMD' is not supported right now\n"
-  echo -e "\nUsage:"
-  echo -e "\t $0 release \$VERSION\n"
-  echo -e "\t $0 bump \$VERSION"
-  echo -e "\t $0 codegen \$VERSION"
-  exit 1
-  ;;
-esac
-
-# ------------------------------------------------------- #
-# Build Container
-# ------------------------------------------------------- #
-
-echo -e "\033[34;1mINFO: building $product container\033[0m"
-
-docker build \
-  --file .buildkite/Dockerfile-make \
-  --tag "$product" \
-  --build-arg NODE_JS_VERSION="$NODE_JS_VERSION" \
-  --build-arg "BUILDER_UID=$(id -u)" \
-  --build-arg "BUILDER_GID=$(id -g)" \
-  .
-
-# ------------------------------------------------------- #
-# Run the Container
-# ------------------------------------------------------- #
-
-echo -e "\033[34;1mINFO: running $product container\033[0m"
-
-if [[ -z "${BUILDKITE+x}" ]] && [[ -z "${CI+x}" ]] && [[ -z "${GITHUB_ACTIONS+x}" ]]; then
-  echo -e "\033[34;1mINFO: Running in local mode"
-  docker run \
-    -u "$(id -u):$(id -g)" \
-    --volume "$repo:/usr/src/elasticsearch-js" \
-    --volume /usr/src/elasticsearch-js/node_modules \
-    --volume "$(realpath "$repo/../elastic-client-generator-js"):/usr/src/elastic-client-generator-js" \
-    --env "WORKFLOW=$WORKFLOW" \
-    --name make-elasticsearch-js \
-    --rm \
-    $product \
-    /bin/bash -c "mkdir -p /usr/src/elastic-client-generator-js/output && \
-      node .buildkite/make.mjs --task $TASK ${TASK_ARGS[*]}"
-else
-  echo -e "\033[34;1mINFO: Running in CI mode"
-
-  # determine branch to clone
-  GENERATOR_BRANCH="main"
-  if [[ "$VERSION" == 8.* ]]; then
-    GENERATOR_BRANCH="8.x"
-  fi
-  echo -e "\033[34;1mINFO: Generator branch: $GENERATOR_BRANCH"
-
-  docker run \
-    --volume "$repo:/usr/src/elasticsearch-js" \
-    --volume /usr/src/elasticsearch-js/node_modules \
-    -u "$(id -u):$(id -g)" \
-    --env "WORKFLOW=$WORKFLOW" \
-    --name make-elasticsearch-js \
-    --rm \
-    $product \
-    /bin/bash -c "cd /usr/src && \
-      git clone --branch $GENERATOR_BRANCH https://$CLIENTS_GITHUB_TOKEN@github.com/elastic/elastic-client-generator-js.git && \
-      mkdir -p /usr/src/elastic-client-generator-js/output && \
-      cd /usr/src/elasticsearch-js && \
-      node .buildkite/make.mjs --task $TASK ${TASK_ARGS[*]}"
-fi
-
-# ------------------------------------------------------- #
-# Post Command tasks & checks
-# ------------------------------------------------------- #
-
-if [[ "$CMD" == "assemble" ]]; then
-  if compgen -G ".buildkite/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

.github/stale.yml

@@ -0,0 +1,24 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 15
+
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 7
+
+# Issues with these labels will never be considered stale
+exemptLabels:
+  - "discussion"
+  - "feature request"
+  - "bug"
+
+# Label to use when marking an issue as stale
+staleLabel: stale
+
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: |
+  We understand that this might be important for you, but this issue has been automatically marked as stale because it has not had recent activity either from our end or yours.
+  It will be closed if no further activity occurs, please write a comment if you would like to keep this going.
+
+  Note: in the past months we have built a new client, that has just landed in master. If you want to open an issue or a pr for the legacy client, you should do that in https://github.com/elastic/elasticsearch-js-legacy
+
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: false

.github/workflows/backport.yml

@@ -1,27 +1,16 @@
----
 name: Backport
 on:
-  pull_request_target:
+  pull_request:
     types:
       - closed
       - labeled
 
 jobs:
   backport:
-    name: Backport
     runs-on: ubuntu-latest
-    # Only react to merged PRs for security reasons.
-    # See https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target.
-    if: >
-      github.event.pull_request.merged
-      && (
-        github.event.action == 'closed'
-        || (
-          github.event.action == 'labeled'
-          && contains(github.event.label.name, 'backport')
-        )
-      )
+    name: Backport
     steps:
-      - uses: tibdex/backport@9565281eda0731b1d20c4025c43339fb0a23812e  # v2.0.4
+      - name: Backport
+        uses: tibdex/backport@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/comment-on-asciidoc-changes.yml

@@ -1,21 +0,0 @@
----
-name: Comment on PR for .asciidoc changes
-
-on:
-  # We need to use pull_request_target to be able to comment on PRs from forks
-  pull_request_target:
-    types:
-      - synchronize
-      - opened
-      - reopened
-    branches:
-      - main
-      - master
-      - "9.0"
-
-jobs:
-  comment-on-asciidoc-change:
-    permissions:
-      contents: read
-      pull-requests: write
-    uses: elastic/docs-builder/.github/workflows/comment-on-asciidoc-changes.yml@main

.github/workflows/nodejs.yml

@@ -1,120 +1,120 @@
----
 name: Node CI
 
-on:
-  pull_request: {}
+on: [push]
 
 jobs:
-  paths-filter:
-    name: Detect files changed
-    runs-on: ubuntu-latest
-    outputs:
-      src-only: "${{ steps.changes.outputs.src-only }}"
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
-      - uses: dorny/paths-filter/@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
-        id: changes
-        with:
-          filters: |
-            src-only:
-              - '!(**/*.{md,asciidoc,txt}|*.{md,asciidoc,txt}|{docs,.buildkite,scripts}/**/*|catalog-info.yaml)'
-              - '.github/workflows/**'
-
   test:
     name: Test
     runs-on: ${{ matrix.os }}
-    needs: paths-filter
-    # only run if code relevant to unit tests was changed
-    if: needs.paths-filter.outputs.src-only == 'true'
 
     strategy:
-      fail-fast: false
       matrix:
-        node-version: [18.x, 20.x, 22.x, 23.x]
+        node-version: [10.x, 12.x, 13.x]
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
+    - uses: actions/checkout@v2
 
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4
-        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: Lint
-        run: |
-          npm run lint
+    - name: Lint
+      run: |
+        npm run lint
 
-      - name: Unit test
-        run: |
-          npm run test:unit
+    - name: Unit test
+      run: |
+        npm run test:unit
 
-      - name: ECMAScript module test
-        run: |
-          npm run test:esm
+    - name: Behavior test
+      run: |
+        npm run test:behavior
+
+    - name: Type Definitions
+      run: |
+        npm run test:types
+
+  test-node-v8:
+    name: Test
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        node-version: [8.x]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - name: Install
+      run: |
+        npm install
+
+    - name: Test
+      run: |
+        npm run test:unit -- --node-arg=--harmony-async-iteration
+
+  code-coverage:
+    name: Code coverage
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [12.x]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - name: Install
+      run: |
+        npm install
+
+    - name: Code coverage
+      run: |
+        npm run test:coverage
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v1
+      with:
+        file: ./coverage.lcov
+        fail_ci_if_error: true
 
   license:
     name: License check
     runs-on: ubuntu-latest
 
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
-
-      - name: Use Node.js
-        uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4
-        with:
-          node-version: 22.x
-
-      - name: Install
-        run: |
-          npm install
-
-      - name: License checker
-        run: |
-          npm run license-checker
-
-  test-bun:
-    name: Test Bun
-    runs-on: ${{ matrix.os }}
-    needs: paths-filter
-    # only run if code relevant to unit tests was changed
-    if: needs.paths-filter.outputs.src-only == 'true'
-
     strategy:
-      fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macOS-latest]
+        node-version: [12.x]
 
     steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
+    - uses: actions/checkout@v2
 
-      - name: Use Bun
-        uses: oven-sh/setup-bun@4bc047ad259df6fc24a6c9b0f9a0cb08cf17fbe5 # v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
 
-      - name: Install
-        run: |
-          bun install
+    - name: Install
+      run: |
+        npm install
 
-      - name: Lint
-        run: |
-          bun run lint
-
-      - name: Unit test
-        run: |
-          bun run test:unit-bun
-
-      - name: ECMAScript module test
-        run: |
-          bun run test:esm
+    - name: License checker
+      run: |
+        npm run license-checker

.github/workflows/npm-publish.yml

@@ -1,41 +0,0 @@
-name: Publish Package to npm
-on:
-  workflow_dispatch:
-    inputs:
-      branch:
-        description: "Git branch to build and publish"
-        required: true
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      id-token: write
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
-          ref: ${{ github.event.inputs.branch }}
-      - uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4
-        with:
-          node-version: "22.x"
-          registry-url: "https://registry.npmjs.org"
-      - run: npm install -g npm
-      - run: npm install
-      - run: npm test
-      - run: npm publish --provenance --access public --tag alpha
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
-      - name: Publish version on GitHub
-        run: |
-          version=$(jq -r .version package.json)
-          gh release create \
-            -n "This is a 9.0.0 pre-release alpha. Changes may not be stable." \
-            --latest=false \
-            --prerelease \
-            --target "$BRANCH_NAME" \
-            --title "v$version" \
-            "v$version"
-        env:
-          BRANCH_NAME: ${{ github.event.inputs.branch }}
-          GH_TOKEN: ${{ github.token }}

.github/workflows/serverless-patch.sh

@@ -1,43 +0,0 @@
-#!/usr/bin/env bash
-
-set -exuo pipefail
-
-merge_commit_sha=$(jq -r '.pull_request.merge_commit_sha' "$GITHUB_EVENT_PATH")
-pull_request_id=$(jq -r '.pull_request.number' "$GITHUB_EVENT_PATH")
-pr_shortcode="elastic/elasticsearch-js#$pull_request_id"
-
-# generate patch file
-cd "$GITHUB_WORKSPACE/stack"
-git format-patch -1 --stdout "$merge_commit_sha" > /tmp/patch.diff
-
-# set committer info
-git config --global user.email "elasticmachine@users.noreply.github.com"
-git config --global user.name "Elastic Machine"
-
-# apply patch file
-cd "$GITHUB_WORKSPACE/serverless"
-git am -C1 --reject /tmp/patch.diff || git am --quit
-
-# generate PR body comment
-comment="Patch applied from $pr_shortcode"
-
-# enumerate rejected patches in PR comment
-has_rejects='false'
-for f in ./**/*.rej; do
-  has_rejects='true'
-  comment="$comment
-
-## Rejected patch \`$f\` must be resolved:
-
-\`\`\`diff
-$(cat "$f")
-\`\`\`
-"
-done
-
-# delete .rej files
-rm -fv ./**/*.rej
-
-# send data to output parameters
-echo "$comment" > /tmp/pr_body
-echo "PR_DRAFT=$has_rejects" >> "$GITHUB_OUTPUT"

.github/workflows/serverless-patch.yml

@@ -1,53 +0,0 @@
----
-name: Apply PR changes to serverless
-on:
-  pull_request_target:
-    types:
-      - closed
-      - labeled
-
-jobs:
-  apply-patch:
-    name: Apply patch
-    runs-on: ubuntu-latest
-    # Only react to merged PRs for security reasons.
-    # See https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target.
-    if: >
-      github.event.pull_request.merged
-      && (
-        (
-          github.event.action == 'closed'
-          && contains(github.event.pull_request.labels.*.name, 'apply-to-serverless')
-        )
-        ||
-        (
-          github.event.action == 'labeled'
-          && github.event.label.name == 'apply-to-serverless'
-        )
-      )
-    steps:
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
-          repository: elastic/elasticsearch-js
-          ref: main
-          path: stack
-          fetch-depth: 0
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
-          repository: elastic/elasticsearch-serverless-js
-          ref: main
-          path: serverless
-      - name: Apply patch from stack to serverless
-        id: apply-patch
-        run: $GITHUB_WORKSPACE/stack/.github/workflows/serverless-patch.sh
-      - uses: peter-evans/create-pull-request@67ccf781d68cd99b580ae25a5c18a1cc84ffff1f # v7
-        with:
-          token: ${{ secrets.GH_TOKEN }}
-          path: serverless
-          title: "Apply patch from elastic/elasticsearch-js#${{ github.event.pull_request.number }}"
-          commit-message: "Apply patch from elastic/elasticsearch-js#${{ github.event.pull_request.number }}"
-          body-path: /tmp/pr_body
-          draft: "${{ steps.apply-patch.outputs.PR_DRAFT }}"
-          add-paths: ":!*.rej"

.github/workflows/stale.yml

@@ -1,21 +0,0 @@
----
-name: "Close stale issues and PRs"
-on:
-  schedule:
-    - cron: "30 1 * * *"
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639 # v9
-        with:
-          stale-issue-label: stale
-          stale-pr-label: stale
-          days-before-stale: 90
-          days-before-close: 14
-          exempt-issue-labels: "good first issue,tracking"
-          close-issue-label: closed-stale
-          close-pr-label: closed-stale
-          stale-issue-message: "This issue is stale because it has been open 90 days with no activity. Remove the `stale` label, or leave a comment, or this will be closed in 14 days."
-          stale-pr-message: "This pull request is stale because it has been open 90 days with no activity. Remove the `stale` label, or leave a comment, or this will be closed in 14 days."

.gitignore

@@ -45,9 +45,6 @@ jspm_packages
 # vim swap files
 *.swp
 
-#Jetbrains editor folder
-.idea
-
 package-lock.json
 
 # elasticsearch repo or binary files
@@ -56,15 +53,3 @@ elasticsearch*
 test/benchmarks/macro/fixtures/*
 
 *-junit.xml
-
-.cache
-
-test/bundlers/**/bundle.js
-test/bundlers/parcel-test/.parcel-cache
-
-lib
-junit-output
-bun.lockb
-test-results
-processinfo
-.tap

.npmignore

@@ -64,13 +64,9 @@ test
 scripts
 
 # ci configuration
+.ci
 .travis.yml
-.buildkite
 certs
 .github
 CODE_OF_CONDUCT.md
 CONTRIBUTING.md
-
-src
-bun.lockb
-.tap

CHANGELOG.md

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

CONTRIBUTING.md

@@ -8,7 +8,7 @@ improving the documentation,
 submitting bug reports and feature requests or writing code.
 
 ## Repository structure
-The `main` branch is considered unstable, and it's compatible with Elasticsearch main. Unless you are patching an issue, new features should always be sent to the `main` branch, in case of a bugfix, it depends if the bug affects all the release lines.<br/>
+The `master` branch is considered unstable, and it's compatible with Elasticsearch master. Unless you are patching an issue, new features should always be sent to the `master` branch, in case of a bugfix, it depends if the bug affects all the release lines.<br/>
 There is a branch for every supported release line, such as `7.x` or `6.x`. We release bugfixes as soon as possible, while minor and major releases are published at the same time of the Elastic Stack.
 
 Usually for every release line there will be a *published* version and a *next* version. Eg: the `7.x` branch contains the version published on npm, and bugfixes should be sent there, while `7.2` *(assuming that 7.1.x is released)* contains the next version, and new features should be sent there.
@@ -31,7 +31,7 @@ Once your changes are ready to submit for review:
 1. Test your changes
 
     Run the test suite to make sure that nothing is broken.
-    Usually running `npm test` is enough; our CI will take care of running the integration tests. If you want to run the integration tests yourself, see [the *Testing* section](#testing) below.
+    Usually run `npm test` is enough, our CI will take care of running the integration test. If you want to run the integration test yourself, see the *Testing* section below.
 
 2. Submit a pull request
 
@@ -58,50 +58,36 @@ Once your changes are ready to submit for review:
 
 ### Code generation
 
-The entire content of the `src/api/` directory is automatically generated from [the Elasticsearch specification](https://github.com/elastic/elasticsearch-specification), as is the `docs/reference.asciidoc` file.
-This code generation is done using a separate repository that is not currently available to the public.
-
-If you find discrepancies between this client's API code and what you see when actually interacting with an Elasticsearch API, you can open a pull request here to fix it.
-For API fixes, it's likely a change will need to be made to the specification as well, to ensure your fix is not undone by the code generation process.
-We will do our best to make sure this is addressed when reviewing and merging your changes.
-
-PRs to improve the specification are also welcome!
-It is implemented in TypeScript, so JavaScript devs should be able to understand it fairly easily.
-Spec fixes are particularly helpful, as they will be reflected in ALL official Elasticsearch clients, not just this one.
+The entire content of the API folder is generated as well as the `docs/reference.asciidoc` file.<br/>
+If you want to run the code generation you should run the following command:
+```sh
+node scripts/generate --tag <tag name>
+# or
+node scripts/generate --branch <branch name>
+```
+Then you should copy the content of `api/generated.d.ts` into the `index.d.ts` file *(automate this step would be a nice pr!)*.
 
 ### Testing
-
-There are a few different test scripts.
-Usually during development you only need to run `npm test`, but if you want you can run just a part of the suite:
+There are different test scripts, usually during development you only need to run `npm test`, but if you want you can run just a part of the suite, following you will find all the testing scripts and what they do.
 
 | Script | Description |
 |---|---|
 | `npm run test:unit` | Runs the content of the `test/unit` folder. |
-| `npm run test:coverage-100` | Runs unit tests enforcing 100% coverage. |
-| `npm run test:coverage-report` | Runs unit tests and generates an `lcov` coverage report. |
-| `npm run test:coverage-ui` | Runs unit tests and generates an HTML coverage report. |
-| `npm run test:integration` | Runs the integration test runner.<br/>**Note: requires a living instance of Elasticsearch.** |
-| `npm run lint` | Run the [linter](https://github.com/standard/ts-standard). |
-| `npm run lint:fix` | Fixes linter errors. |
-| `npm run license-checker` | Checks that all dependencies have acceptable open source licenses. |
-
-| `npm test` | Runs `lint` and `test:unit`. |
+| `npm run test:behavior` | Runs the content of the `test/behavior` folder. |
+| `npm run test:types` | Runs the content of the `test/types` folder. |
+| `npm run test:unit -- --cov --coverage-report=html` | Runs the content of the `test/unit` folder and calculates the code coverage. |
+| `npm run test:integration` | Runs the integration test runner.<br/>*Note: it requires a living instance of Elasticsearch.* |
+| `npm run lint` | Run the [linter](https://standardjs.com/). |
+| `npm run lint:fix` | Fixes the lint errors. |
+| `npm test` | Runs lint, unit, behavior, and types test. |
 
 #### Integration test
+The integration test are generated on the fly by the runner you will find inside `test/integration`, once you execute it, it will clone the Elasticsearch repository and checkout the correct version to grab the [OSS yaml files](https://github.com/elastic/elasticsearch/tree/master/rest-api-spec/src/main/resources/rest-api-spec/test) and the [Elastic licensed yaml files](https://github.com/elastic/elasticsearch/tree/master/x-pack/plugin/src/test/resources/rest-api-spec/test) that will be used for generating the test.
 
-The integration tests are generated on the fly by the runner you will find inside `test/integration`.
-Once you execute it, it will fetch the [YAML REST test files](https://github.com/elastic/elasticsearch/tree/main/rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test) from our artifacts API.
-These are used to generate the integration tests.
-
-Usually this step is executed by CI since it takes some time, but you can easily run this yourself!
-Just follow this steps:
-1. Boot a fresh Elasticsearch instance, which can be done in a Docker container by running `STACK_VERSION=8.10.0 DETACH=true .buildkite/run-elasticsearch.sh`, where `STACK_VERSION` and `DETACH` environment variables can be adjusted to your needs. A `TEST_SUITE` env var can also be set to `free` or `platinum`, and defaults to `free`.
-1. Run `npm run test:integration` to run the whole suite, or `npm run test:integration -- --bail` to stop after the first failure.
-1. Grab a coffee, it will take some time. ;)
-
-This suite is very large, and not all tests will pass.
-This is fine.
-This suite is mostly used to identify notable changes in success/fail rate over time as we make changes to the client.
+Usually this step is executed by CI since it takes some time, but you can easily run this yourself! Just follow this steps:
+1. Boot an Elasticsearch instance, you can do that by running `./scripts/es-docker.sh` or `./scripts/es-docker-platinum.sh`, the first one will work only with the OSS APIs, while the second will work also with the Elastic licensed APIs;
+1. If you are running the OSS test, you should use `npm run test:integration`, otherwise use `TEST_ES_SERVER=https://elastic:changeme@localhost:9200 npm run test:integration`. You can also pass a `-b` parameter if you want the test to bail out at the first failure: `npm run test:integration -- -b`;
+1. Grab a coffee, it will take some time ;)
 
 ### Releasing
 

NOTICE.txt

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

README.md

@@ -2,91 +2,39 @@
 
 # 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://badge.buildkite.com/15e4246eb268ea78f6e10aa90bce38c1abb0a4489e79f5a0ac.svg)](https://buildkite.com/elastic/elasticsearch-javascript-client-integration-tests/builds?branch=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)
-
-**[Download the latest version of Elasticsearch](https://www.elastic.co/downloads/elasticsearch)**
-or
-**[sign-up](https://cloud.elastic.co/registration?elektra=en-ess-sign-up-page)**
-**for a free trial of Elastic Cloud**.
+[![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.
 
-## Installation
+---
 
-Refer to the [Installation section](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_installation)
-of the getting started documentation.
+**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).
 
-## Connecting
+---
 
-Refer to the [Connecting section](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_connecting)
-of the getting started documentation.
+## Features
+- One-to-one mapping with REST API.
+- Generalized, pluggable architecture.
+- Configurable, automatic discovery of cluster nodes.
+- Persistent, Keep-Alive connections.
+- Load balancing across all available nodes.
+- Child client support.
+- TypeScript support out of the box.
 
-## Compatibility
-
-The Elasticsearch client is compatible with currently maintained JS versions.
-
-Language clients are forward compatible; meaning that clients support
-communicating with greater or equal minor versions of Elasticsearch without
-breaking. It does not mean that the client automatically supports new features
-of newer Elasticsearch versions; it is only possible after a release of a new
-client version. For example, a 8.12 client version won't automatically support
-the new features of the 8.13 version of Elasticsearch, the 8.13 client version
-is required for that. Elasticsearch language clients are only backwards
-compatible with default distributions and without guarantees made.
-
-| Elasticsearch Version | Elasticsearch-JS Branch  | Supported |
-| --------------------- | ------------------------ | --------- |
-| main                  | main                     |           |
-| 8.x                   | 8.x                      | 8.x       |
-| 7.x                   | 7.x                      | 7.17      |
-
-## Usage
-
-* [Creating an index](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_creating_an_index)
-* [Indexing a document](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_indexing_documents)
-* [Getting documents](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_getting_documents)
-* [Searching documents](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_searching_documents)
-* [Updating documents](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_updating_documents)
-* [Deleting documents](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_deleting_documents)
-* [Deleting an index](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/getting-started-js.html#_deleting_an_index)
-
-### Node.js support
-
-NOTE: The minimum supported version of Node.js is `v18`.
-
-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)     |
-| `16.x`          | `September 2023` | `8.11` (late 2023)     |
+## Install
+```
+npm install @elastic/elasticsearch
+```
 
 ### 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`          |
@@ -98,76 +46,151 @@ 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).
+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.
 
 ## 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)
-* [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)
-* [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)
-* [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)
-* [Examples](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/examples.html)
+- [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-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)
+- [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-client.html)
+- [Extend the client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/extend-client.html)
+- [Typescript support](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/typescript.html)
+- [Examples](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/examples.html)
+
+## 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: { foo: 'bar' }
+})
+
+// callback API
+client.search({
+  index: 'my-index',
+  body: { foo: 'bar' }
+}, (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({ node: 'http://localhost:9200' })
+
+async function run () {
+  // Let's start by indexing some data
+  await client.index({
+    index: 'game-of-thrones',
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      character: 'Ned Stark',
+      quote: 'Winter is coming.'
+    }
+  })
+
+  await client.index({
+    index: 'game-of-thrones',
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      character: 'Daenerys Targaryen',
+      quote: 'I am the blood of the dragon.'
+    }
+  })
+
+  await client.index({
+    index: 'game-of-thrones',
+    // 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.'
+    }
+  })
+
+  // here we are forcing an index refresh, otherwise we will not
+  // get any result in the consequent search
+  await client.indices.refresh({ index: 'game-of-thrones' })
+
+  // Let's search!
+  const { body } = await client.search({
+    index: 'game-of-thrones',
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      query: {
+        match: { quote: 'winter' }
+      }
+    }
+  })
+
+  console.log(body.hits.hits)
+}
+
+run().catch(console.log)
+```
 
 ## Install multiple versions
 If you are using multiple versions of Elasticsearch, you need to use multiple versions of the client. In the past, install multiple versions of the same package was not possible, but with `npm v6.9`, you can do that via aliasing.
 
 The command you must run to install different version of the client is:
-
 ```sh
 npm install <alias>@npm:@elastic/elasticsearch@<version>
 ```
-
-So for example if you need to install `7.x` and `6.x`, you will run:
-
+So for example if you need to install `7.x` and `6.x`, you will run
 ```sh
 npm install es6@npm:@elastic/elasticsearch@6
 npm install es7@npm:@elastic/elasticsearch@7
 ```
-
 And your `package.json` will look like the following:
-
 ```json
 "dependencies": {
   "es6": "npm:@elastic/elasticsearch@^6.7.0",
   "es7": "npm:@elastic/elasticsearch@^7.0.0"
 }
 ```
-
 You will require the packages from your code by using the alias you have defined.
-
 ```js
 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/bulk.js

@@ -0,0 +1,127 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [bulk](http://www.elastic.co/guide/en/elasticsearch/reference/master/docs-bulk.html) request
+   *
+   * @param {string} index - Default index for items which don't provide one
+   * @param {string} type - Default document type for items which don't provide one
+   * @param {string} wait_for_active_shards - Sets the number of shard copies that must be active before proceeding with the bulk operation. Defaults to 1, meaning the primary shard only. Set to `all` for all shard copies, otherwise set to any non-negative value less than or equal to the total number of copies for the shard (number of replicas + 1)
+   * @param {enum} refresh - If `true` then refresh the effected shards to make this operation visible to search, if `wait_for` then wait for a refresh to make this operation visible to search, if `false` (the default) then do nothing with refreshes.
+   * @param {string} routing - Specific routing value
+   * @param {time} timeout - Explicit operation timeout
+   * @param {string} type - Default document type for items which don't provide one
+   * @param {list} fields - Default comma-separated list of fields to return in the response for updates, can be overridden on each sub-request
+   * @param {list} _source - True or false to return the _source field or not, or default list of fields to return, can be overridden on each sub-request
+   * @param {list} _source_excludes - Default list of fields to exclude from the returned _source field, can be overridden on each sub-request
+   * @param {list} _source_includes - Default list of fields to extract and return from the _source field, can be overridden on each sub-request
+   * @param {string} pipeline - The pipeline id to preprocess incoming documents with
+   * @param {object} body - The operation definition and data (action-data pairs), separated by newlines
+   */
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards',
+    'refresh',
+    'routing',
+    'timeout',
+    'type',
+    'fields',
+    '_source',
+    '_source_excludes',
+    '_source_exclude',
+    '_source_includes',
+    '_source_include',
+    'pipeline',
+    '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',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_bulk'
+    } else if ((index) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + '_bulk'
+    } else {
+      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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.aliases](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-alias.html) request
+   *
+   * @param {list} name - A comma-separated list of alias names to return
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      path = '/' + '_cat' + '/' + 'aliases' + '/' + encodeURIComponent(name)
+    } else {
+      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 +1,107 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.allocation](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-allocation.html) request
+   *
+   * @param {list} node_id - A comma-separated list of node IDs or names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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, nodeId, node_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((node_id || nodeId) != null) {
+      path = '/' + '_cat' + '/' + 'allocation' + '/' + encodeURIComponent(node_id || nodeId)
+    } else {
+      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 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.count](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-count.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'count' + '/' + encodeURIComponent(index)
+    } else {
+      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 +1,109 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.fielddata](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-fielddata.html) request
+   *
+   * @param {list} fields - A comma-separated list of fields to return the fielddata size
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   * @param {list} fields - A comma-separated list of fields to return in the output
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'fields',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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, fields, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((fields) != null) {
+      path = '/' + '_cat' + '/' + 'fielddata' + '/' + encodeURIComponent(fields)
+    } else {
+      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 +1,102 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.health](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-health.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} ts - Set to false to disable timestamping
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'ts',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,89 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.help](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat.html) request
+   *
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   */
+
+  const acceptedQuerystring = [
+    'help',
+    's',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,111 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.indices](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-indices.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {enum} health - A health status ("green", "yellow", or "red" to filter only indices matching the specified health status
+   * @param {boolean} help - Return help information
+   * @param {boolean} pri - Set to true to return stats only for primary shards
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'health',
+    'help',
+    'pri',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'indices' + '/' + encodeURIComponent(index)
+    } else {
+      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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.master](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-master.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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.nodeattrs.js

@@ -0,0 +1,100 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.nodeattrs](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-nodeattrs.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.nodes](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-nodes.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} full_id - Return the full node ID instead of the shortened version (default: false)
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'full_id',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    fullId: 'full_id',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,100 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.pending_tasks](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-pending-tasks.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.plugins](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-plugins.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.recovery](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-recovery.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'recovery' + '/' + encodeURIComponent(index)
+    } else {
+      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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.repositories](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-repositories.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,102 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.segments](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-segments.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'segments' + '/' + encodeURIComponent(index)
+    } else {
+      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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.shards](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-shards.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'shards' + '/' + encodeURIComponent(index)
+    } else {
+      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 +1,106 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.snapshots](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-snapshots.html) request
+   *
+   * @param {list} repository - Name of repository from which to fetch the snapshot information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} ignore_unavailable - Set to true to ignore unavailable snapshots
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'ignore_unavailable',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    ignoreUnavailable: 'ignore_unavailable',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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, repository, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((repository) != null) {
+      path = '/' + '_cat' + '/' + 'snapshots' + '/' + encodeURIComponent(repository)
+    } else {
+      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 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.tasks](http://www.elastic.co/guide/en/elasticsearch/reference/master/tasks.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {list} node_id - A comma-separated list of node IDs or names to limit the returned information; use `_local` to return information from the node you're connecting to, leave empty to get information from all nodes
+   * @param {list} actions - A comma-separated list of actions that should be returned. Leave empty to return all.
+   * @param {boolean} detailed - Return detailed task information (default: false)
+   * @param {number} parent_task - Return tasks with specified parent task id. Set to -1 to return all.
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'node_id',
+    'actions',
+    'detailed',
+    'parent_task',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    nodeId: 'node_id',
+    parentTask: 'parent_task',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.templates](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-templates.html) request
+   *
+   * @param {string} name - A pattern that returned template names must match
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      path = '/' + '_cat' + '/' + 'templates' + '/' + encodeURIComponent(name)
+    } else {
+      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 agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cat.thread_pool](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-thread-pool.html) request
+   *
+   * @param {list} thread_pool_patterns - A comma-separated list of regular-expressions to filter the thread pools in the output
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} size - The multiplier in which to display values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'size',
+    '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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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, threadPoolPatterns, thread_pool_patterns, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((thread_pool_patterns || threadPoolPatterns) != null) {
+      path = '/' + '_cat' + '/' + 'thread_pool' + '/' + encodeURIComponent(thread_pool_patterns || threadPoolPatterns)
+    } else {
+      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/ccr.delete_auto_follow_pattern.js

@@ -0,0 +1,81 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.delete_auto_follow_pattern](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-delete-auto-follow-pattern.html) request
+   *
+   * @param {string} name - The name of the auto follow pattern.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'DELETE'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,87 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.follow](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-put-follow.html) request
+   *
+   * @param {string} index - The name of the follower index
+   * @param {string} wait_for_active_shards - Sets the number of shard copies that must be active before returning. Defaults to 0. Set to `all` for all shard copies, otherwise set to any non-negative value less than or equal to the total number of copies for the shard (number of replicas + 1)
+   * @param {object} body - The name of the leader index and other optional ccr related parameters
+   */
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards'
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'PUT'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,75 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.follow_info](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-follow-info.html) request
+   *
+   * @param {list} index - A comma-separated list of index patterns; use `_all` to perform the operation on all indices
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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 = {}
+    }
+
+    // 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,75 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.follow_stats](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-follow-stats.html) request
+   *
+   * @param {list} index - A comma-separated list of index patterns; use `_all` to perform the operation on all indices
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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 = {}
+    }
+
+    // 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,86 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.forget_follower](http://www.elastic.co/guide/en/elasticsearch/reference/current) request
+   *
+   * @param {string} index - the name of the leader index for which specified follower retention leases should be removed
+   * @param {object} body - the name and UUID of the follower index, the name of the cluster containing the follower index, and the alias from the perspective of that cluster for the remote cluster containing the leader index
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,79 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.get_auto_follow_pattern](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-auto-follow-pattern.html) request
+   *
+   * @param {string} name - The name of the auto follow pattern.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
+    } else {
+      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_follow.js

@@ -0,0 +1,81 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.pause_follow](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-pause-follow.html) request
+   *
+   * @param {string} index - The name of the follower index that should pause following its leader index.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,86 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.put_auto_follow_pattern](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-put-auto-follow-pattern.html) request
+   *
+   * @param {string} name - The name of the auto follow pattern.
+   * @param {object} body - The specification of the auto follow pattern
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'PUT'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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_follow.js

@@ -0,0 +1,82 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.resume_follow](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-resume-follow.html) request
+   *
+   * @param {string} index - The name of the follow index to resume following.
+   * @param {object} body - The name of the leader index and other optional ccr related parameters
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,74 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.stats](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-stats.html) request
+   *
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,81 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [ccr.unfollow](http://www.elastic.co/guide/en/elasticsearch/reference/current) request
+   *
+   * @param {string} index - The name of the follower index that should be turned into a regular index.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,85 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [clear_scroll](http://www.elastic.co/guide/en/elasticsearch/reference/master/search-request-scroll.html) request
+   *
+   * @param {list} scroll_id - A comma-separated list of scroll IDs to clear
+   * @param {object} body - A comma-separated list of scroll IDs to clear if none was specified via the scroll_id parameter
+   */
+
+  const acceptedQuerystring = [
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'DELETE'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((scroll_id || scrollId) != null) {
+      path = '/' + '_search' + '/' + 'scroll' + '/' + encodeURIComponent(scroll_id || scrollId)
+    } else {
+      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/cluster.allocation_explain.js

@@ -0,0 +1,86 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.allocation_explain](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-allocation-explain.html) request
+   *
+   * @param {boolean} include_yes_decisions - Return 'YES' decisions in explanation (default: false)
+   * @param {boolean} include_disk_info - Return information about disk usage and shard sizes (default: false)
+   * @param {object} body - The index, shard, and primary flag to explain. Empty means 'explain the first unassigned shard'
+   */
+
+  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'
+  }
+
+  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)
+
+    if (method == null) {
+      method = body == null ? 'GET' : 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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.get_settings.js

@@ -0,0 +1,96 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.get_settings](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-update-settings.html) request
+   *
+   * @param {boolean} flat_settings - Return settings in flat format (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {boolean} include_defaults - Whether to return all default clusters setting.
+   */
+
+  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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,117 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.health](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-health.html) request
+   *
+   * @param {list} index - Limit the information returned to a specific index
+   * @param {enum} level - Specify the level of detail for returned information
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {string} wait_for_active_shards - Wait until the specified number of shards is active
+   * @param {string} wait_for_nodes - Wait until the specified number of nodes is available
+   * @param {enum} wait_for_events - Wait until all currently queued events with the given priority are processed
+   * @param {boolean} wait_for_no_relocating_shards - Whether to wait until there are no relocating shards in the cluster
+   * @param {boolean} wait_for_no_initializing_shards - Whether to wait until there are no initializing shards in the cluster
+   * @param {enum} wait_for_status - Wait until cluster is in a specific state
+   */
+
+  const acceptedQuerystring = [
+    '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 = {
+    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'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cluster' + '/' + 'health' + '/' + encodeURIComponent(index)
+    } else {
+      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 +1,90 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.pending_tasks](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-pending.html) request
+   *
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Specify timeout for connection to master
+   */
+
+  const acceptedQuerystring = [
+    'local',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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.put_settings.js

@@ -0,0 +1,94 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.put_settings](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-update-settings.html) request
+   *
+   * @param {boolean} flat_settings - Return settings in flat format (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {object} body - The settings to be updated. Can be either `transient` or `persistent` (survives cluster restart).
+   */
+
+  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'
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'PUT'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,85 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.remote_info](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-remote-info.html) request
+   *
+   */
+
+  const acceptedQuerystring = [
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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 = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a 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)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,95 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.reroute](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-reroute.html) request
+   *
+   * @param {boolean} dry_run - Simulate the operation only and return the resulting state
+   * @param {boolean} explain - Return an explanation of why the commands can or cannot be executed
+   * @param {boolean} retry_failed - Retries allocation of shards that are blocked due to too many subsequent allocation failures
+   * @param {list} metric - Limit the information returned to the specified metrics. Defaults to all but metadata
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {object} body - The definition of `commands` to perform (`move`, `cancel`, `allocate`)
+   */
+
+  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'
+  }
+
+  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)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    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 +1,122 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'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
+  /**
+   * Perform a [cluster.state](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-state.html) request
+   *
+   * @param {list} index - A comma-separated list of index names; use `_all` or empty string to perform the operation on all indices
+   * @param {list} metric - Limit the information returned to the specified metrics
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Specify timeout for connection to master
+   * @param {boolean} flat_settings - Return settings in flat format (default: false)
+   * @param {number} wait_for_metadata_version - Wait for the metadata version to be equal or greater than the specified metadata version
+   * @param {time} wait_for_timeout - The maximum time to wait for wait_for_metadata_version before timing out
+   * @param {boolean} ignore_unavailable - Whether specified concrete indices should be ignored when unavailable (missing or closed)
+   * @param {boolean} allow_no_indices - Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)
+   * @param {enum} expand_wildcards - Whether to expand wildcard expression to concrete indices that are open, closed or both.
+   */
+
+  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'
+  }
+
+  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 parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // 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, index, metric, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((metric) != null && (index) != null) {
+      path = '/' + '_cluster' + '/' + 'state' + '/' + encodeURIComponent(metric) + '/' + encodeURIComponent(index)
+    } else if ((metric) != null) {
+      path = '/' + '_cluster' + '/' + 'state' + '/' + encodeURIComponent(metric)
+    } else {
+      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