Bumped v7.3.0

* Updated documentation genertation script to build small code snippets

* Updated docs reference

* Removed slm doc

* Add commas and remove empty objects

.buildkite/Dockerfile

@@ -1,14 +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 . .
-RUN npm install --production=false

.buildkite/certs/ca.crt

@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDSjCCAjKgAwIBAgIVAJQLm8V2LcaCTHUcoIfO+KL63nG3MA0GCSqGSIb3DQEB
-CwUAMDQxMjAwBgNVBAMTKUVsYXN0aWMgQ2VydGlmaWNhdGUgVG9vbCBBdXRvZ2Vu
-ZXJhdGVkIENBMB4XDTIwMDIyNjA1NTA1N1oXDTIzMDIyNTA1NTA1N1owNDEyMDAG
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-AEniIqcFif4G72nDih2LlbhpUe/+/MTryj8ZTkFTzI+eMmbQi5FFMaH+kwufmdt/
-5/w8YazO18SxxJUlzMqzfNUrhM8vvvVdxgboU7PWhk28wZHCMHQovomHmzclhRpF
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-SCCcQIe7f6NDpIRIBlty1C9IaEHj7edyHjF6rtYb
------END CERTIFICATE-----

.buildkite/certs/ca.key

@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEpgIBAAKCAQEA2Mmo5D7xrVDhOTNTqMEHwZFla1o6NfiyMc4AnkR6dGM7S7XV
-SdLJNsaEq7drmacXD3qXcjrHi04xSXsdQ9sgkQBJ4iKnBYn+Bu9pw4odi5W4aVHv
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-binGA+uwsWwUttwXhhYAo+LYja5sTvEuWH/ObwIDAQABAoIBAQC8QDGnMnmPdWJ+
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-tB9brOxv0ui3qGMuBsBoDKbkNnwXyOXLyFg7O+H4l016A3mLQzJM+NGV
------END RSA PRIVATE KEY-----

.buildkite/certs/testnode.crt

@@ -1,21 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDYjCCAkqgAwIBAgIVAIClHav09e9XGWJrnshywAjUHTnXMA0GCSqGSIb3DQEB
-CwUAMDQxMjAwBgNVBAMTKUVsYXN0aWMgQ2VydGlmaWNhdGUgVG9vbCBBdXRvZ2Vu
-ZXJhdGVkIENBMB4XDTIzMDMyODE3MDIzOVoXDTI2MDMyNzE3MDIzOVowEzERMA8G
-A1UEAxMIaW5zdGFuY2UwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCV
-+t5/g6u2r3awCtzqp17KG0hRxzkVoJoF8DYzVh+Rv9ymxQW0C/U8dQihAjkZHaIA
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-MpQ4r7Kc3WCsMB8GA1UdIwQYMBaAFJYCWKn16g+acbing4Vl45QGUBs0MDsGA1Ud
-EQQ0MDKCCWxvY2FsaG9zdIIIaW5zdGFuY2WHBH8AAAGHEAAAAAAAAAAAAAAAAAAA
-AAGCA2VzMTAJBgNVHRMEAjAAMA0GCSqGSIb3DQEBCwUAA4IBAQBtX3RQ5ATpfORM
-lrnhaUPGOWkjnb3p3BrdAWUaWoh136QhaXqxKiALQQhTtTerkXOcuquy9MmAyYvS
-9fDdGvLCAO8pPCXjnzonCHerCLGdS7f/eqvSFWCdy7LPHzTAFYfVWVvbZed+83TL
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-pDFmri7IfOucuvalXJ6xiHPr9RDbuxEXs0u8mteT5nFQo7EaEGdHpg1pNGbfBOzP
-lmj/dRS9
------END CERTIFICATE-----

.buildkite/certs/testnode.key

@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEAlfref4Ortq92sArc6qdeyhtIUcc5FaCaBfA2M1Yfkb/cpsUF
-tAv1PHUIoQI5GR2iAJ+PZUsjS5MFrZqkID3IpleHel7k2MdmoQ4sV2LY5qDksB+X
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-1B6WRSemRZkt9tO+B5fpmaEU/xrW51bSIPgiV7Fk4Rd/y+IgSJr/q5GPTCl+X8jC
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-+WAtYM12X/W5s/wUP94juaBI4u4iZH2EZodlixEdZUCTXgq43WsDUhxX05s7cE+p
-H5DuSCHtoo2WHvGKAposwRDm2f3YVWQ2Xyb2ahNt69LYHHWrO+XQ60YYTa3r8Gn3
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-+2Jp1K0CgYEAw8BchALsD/+JuoXjinA14MH7PZjIsXyhtPk+c4pk42iMNyg1J8XF
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-oftUHvkHS0Vv/LicMEOufFGslb4T9aPJ7oyhoSlz9CfAutDWk/q/
------END RSA PRIVATE KEY-----

.buildkite/certs/testnode_san.crt

@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDVjCCAj6gAwIBAgIULh42yRefYlRRl1hvt055LrUH0HwwDQYJKoZIhvcNAQEL
-BQAwNDEyMDAGA1UEAxMpRWxhc3RpYyBDZXJ0aWZpY2F0ZSBUb29sIEF1dG9nZW5l
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-KjAogglsb2NhbGhvc3SHBH8AAAGHEAAAAAAAAAAAAAAAAAAAAAGCA2VzMTAJBgNV
-HRMEAjAAMA0GCSqGSIb3DQEBCwUAA4IBAQC+pauqM2wJjQaHyHu+kIm59P4b/5Oj
-IH1cYCQfMB7Y2UMLxp0ew+f7o7zzE2DA52YYFDWy6J5DVWtSBPyeFGgX+RH+aA+9
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-YsrUSqdL6zvFZyUcilxDUUabNcA+GgeGZ2lAEA90F8vwi62QwRXo3Iv1Hz+6xc43
-nFofDK9D8/qkrUD9iuhpx1974QwPhwWyjn9RZRpbZA4ngRL+szdRXR4N
------END CERTIFICATE-----

.buildkite/certs/testnode_san.key

@@ -1,27 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIEogIBAAKCAQEAhQ+3brs03bXP7e6RqN6Px6iNJfA/rMfHLsJQCn6xDttOrZcI
-rGRhfcJb1OFxLhxX2YtrJh1YRidsQMZg9AOjtaTciHk4RdMxlv/I0THkPhLaUYw5
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-PP/qv0cUOBYh3LzF3T/yq4slq7Z9YgnOJYdFM8aZgqNNjc09KEJvE5JOLeiNu9Ff
-768Nugg+2HM5MCo7SN9FYCfZLOcbMFCCM2FDcnMAV9A512vzD08xryuT8dNPZ6yZ
-DfhK2hQRrb2lrpr3gwSrcGRRu3THqvq7X1RIjpLV3teDMeP8rQPAlpj8fmP+kdVV
-5y1ihiDIo87McihG9FMavJtBDXQkUEuVw6eIeir8L/zHHD/ZwhYjNHZGWbrB88sz
-CkJkfWh/FlA63tCVdJzkmnERALLTVy9mR0Sq6sUlnFhFNO2BRdWgYLrcp9McfTJC
-e8+WsSECgYEAuwQ3nAaFL0jqYu1AREyKT/f3WUenf2UsX7dwwV2/yFtQvkzW7ji4
-uZLnfUnZBojtHf35dRo+hDgtvhZhgZNAuPPsbOl/EIMTcbChEqV/3CSTFlhLFM1d
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-sSkFrY3pdS19edq60nuft64kswKRUUkamCXTXTECgYBdoSfiMpV9bekC7DsPtq5M
-iR3KEgi2zEViCmomNTRuL+GF1NyKWdWJ+xVwcYd5MRZdvKimyyPfeGzWTUg14i42
-KtEEWgZmkukqMz8BIeCYq6sENeIpIQQgqv3PjU+Bi5r1S4Y7wsFPNRakkD4aaB6r
-1rCppWcwZMeoxwEUoO2aswKBgBdDIIdWJi3EpAY5SyWrkEZ0UMdiZC4p7nE33ddB
-IJ5CtdU9BXFcc652ZYjX/58FaCABvZ2F8LhDu92SwOusGfmNIxIjWL1dO2jywA1c
-8wmZKd7P/M7nbdMz45fMzs9+d1zwbWfK53C8+R4AC1BuwQF0zHc3BHTgVRLelUjt
-O8thAoGAdO2gHIqEsZzTgbvLbsh52eVbumjfNGnrnEv1fjb+o+/wAol8dymcmzbL
-bZCRzoyA0qwU9kdPFgX46H6so6o1tUM2GQtVFoT6kDnPv7EkLQK0C4cDh6OOHxDU
-NPvr/9fHhQd9EDWDvS1JnVMAdKDO6ELp3SoKGGmCXR2QplnqWAk=
------END RSA PRIVATE KEY-----

.buildkite/functions/cleanup.sh

@@ -1,67 +0,0 @@
-#!/usr/bin/env bash
-#
-# Shared cleanup routines between different steps
-#
-# Please source .ci/functions/imports.sh as a whole not just this file
-#
-# Version 1.0.0
-# - Initial version after refactor
-
-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 "$1") || true
-  fi
-}
-function container_running {
-  if [[ "$(docker ps -q -f name=$1)" ]]; then
-    return 0;
-    else return 1;
-  fi
-}
-function cleanup_node {
-  if container_running "$1"; then
-    echo -e "\033[34;1mINFO:\033[0m Removing container $1\033[0m"
-    (docker container rm --force --volumes "$1") || true
-  fi
-  if [[ -n "$1" ]]; then
-    echo -e "\033[34;1mINFO:\033[0m Removing volume $1-${suffix}-data\033[0m"
-    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 "$1") || true
-  fi
-}
-
-function cleanup_trap {
-  status=$?
-  set +x
-  if [[ "$DETACH" != "true" ]]; then
-    echo -e "\033[34;1mINFO:\033[0m clean the network if not detached (start and exit)\033[0m"
-    cleanup_all_in_network "$1"
-  fi
-  # status is 0 or SIGINT
-  if [[ "$status" == "0" || "$status" == "130" ]]; then
-    echo -e "\n\033[32;1mSUCCESS run-tests\033[0m"
-    exit 0
-  else
-    echo -e "\n\033[31;1mFAILURE during run-tests\033[0m"
-    exit ${status}
-  fi
-};
-function cleanup_all_in_network {
-
-  if [[ -z "$(docker network ls -q -f name="^$1\$")" ]]; then
-    echo -e "\033[34;1mINFO:\033[0m $1 is already deleted\033[0m"
-    return 0
-  fi
-  containers=$(docker network inspect -f '{{ range $key, $value := .Containers }}{{ printf "%s\n" .Name}}{{ end }}' $1)
-  while read -r container; do
-    cleanup_node "$container"
-  done <<< "$containers"
-  cleanup_network $1
-  echo -e "\033[32;1mSUCCESS:\033[0m Cleaned up and exiting\033[0m"
-};

.buildkite/functions/imports.sh

@@ -1,60 +0,0 @@
-#!/usr/bin/env bash
-#
-# Sets up all the common variables and imports relevant functions
-#
-# Version 1.0.1
-# - Initial version after refactor
-# - Validate STACK_VERSION asap
-
-function require_stack_version() {
-  if [[ -z $STACK_VERSION ]]; then
-    echo -e "\033[31;1mERROR:\033[0m Required environment variable [STACK_VERSION] not set\033[0m"
-    exit 1
-  fi
-}
-
-require_stack_version
-
-if [[ -z $es_node_name ]]; then
-  # only set these once
-  set -euo pipefail
-  export TEST_SUITE=${TEST_SUITE-free}
-  export RUNSCRIPTS=${RUNSCRIPTS-}
-  export DETACH=${DETACH-false}
-  export CLEANUP=${CLEANUP-false}
-
-  export es_node_name=instance
-  export elastic_password=changeme
-  export elasticsearch_image=elasticsearch
-  export elasticsearch_scheme="https"
-  if [[ $TEST_SUITE != "platinum" ]]; then
-    export elasticsearch_scheme="http"
-  fi
-  export elasticsearch_url=${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}"
-
-  export suffix=rest-test
-  export moniker=$(echo "$elasticsearch_container" | tr -C "[:alnum:]" '-')
-  export network_name=${moniker}${suffix}
-
-  export ssl_cert="${script_path}/certs/testnode.crt"
-  export ssl_key="${script_path}/certs/testnode.key"
-  export ssl_ca="${script_path}/certs/ca.crt"
-
-fi
-
-  export script_path=$(dirname $(realpath -s $0))
-  source $script_path/functions/cleanup.sh
-  source $script_path/functions/wait-for-container.sh
-  trap "cleanup_trap ${network_name}" EXIT
-
-
-if [[ "$CLEANUP" == "true" ]]; then
-  cleanup_all_in_network $network_name
-  exit 0
-fi
-
-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"
-

.buildkite/functions/wait-for-container.sh

@@ -1,36 +0,0 @@
-#!/usr/bin/env bash
-#
-# Exposes a routine scripts can call to wait for a container if that container set up a health command
-#
-# Please source .ci/functions/imports.sh as a whole not just this file
-#
-# Version 1.0.1
-# - Initial version after refactor
-# - Make sure wait_for_contiainer is silent
-
-function wait_for_container {
-  set +x
-  until ! container_running "$1" || (container_running "$1" && [[ "$(docker inspect -f "{{.State.Health.Status}}" ${1})" != "starting" ]]); do
-    echo ""
-    docker inspect -f "{{range .State.Health.Log}}{{.Output}}{{end}}" ${1}
-    echo -e "\033[34;1mINFO:\033[0m waiting for node $1 to be up\033[0m"
-    sleep 2;
-  done;
-
-  # Always show logs if the container is running, this is very useful both on CI as well as while developing
-  if container_running $1; then
-    docker logs $1
-  fi
-
-  if ! container_running $1 || [[ "$(docker inspect -f "{{.State.Health.Status}}" ${1})" != "healthy" ]]; then
-    cleanup_all_in_network $2
-    echo
-    echo -e "\033[31;1mERROR:\033[0m Failed to start $1 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"
-    return 1
-  else
-    echo
-    echo -e "\033[32;1mSUCCESS:\033[0m Detached and healthy: ${1} on docker network: ${network_name}\033[0m"
-    return 0
-  fi
-}

.buildkite/pipeline.yml

@@ -1,31 +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: 8.8.0-SNAPSHOT
-    matrix:
-      setup:
-        suite:
-          - "free"
-          - "platinum"
-        nodejs:
-          - "14"
-          - "16"
-          - "18"
-          - "20"
-    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#v2.4.1:
-          artifacts: "junit-output/junit-*.xml"
-          job-uuid-file-pattern: 'junit-(.*).xml'
-          fail-build-on-error: true

.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

@@ -1,152 +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
-sudo sysctl -w vm.max_map_count=262144
-
-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

@@ -1,13 +1,9 @@
-ARG NODE_JS_VERSION=18
+ARG NODE_JS_VERSION=10
 FROM node:${NODE_JS_VERSION}
 
 # Create app directory
 WORKDIR /usr/src/app
 
-RUN apt-get clean -y
-RUN apt-get update -y
-RUN apt-get install -y zip
-
 # Install app dependencies
 COPY package*.json ./
 RUN npm install

.ci/certs/ca.crt

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

.ci/certs/testnode.crt

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----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+LaEqOhwrzNynwgGpYAr7Rfgv4AflltYIIav4PZT03P7fbyAAf8s=
+-----END CERTIFICATE-----

.ci/certs/testnode.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpQIBAAKCAQEAl5PI7LoQBJxnGtQsqMd49yKLPfyCuK8KuEUVX51OFpEJyXcO
+EPNv0SfLmrmITDda8tBGqZ/TWOdw0iFqhxO3rpWq95doy5tsTw7Qtwbp7iSkU74m
+2dUXwlMBFNz67H/W4PqE7VUb8ci0ztZCtDGHiF8Ha7UBfZhC2ioS1dcQL5QdZ+Xh
+DO7NeMGcoKQ78v3/pN/I0VBZfEqciJOzxeb2wSGFIIEk+UtNC74xfi9HZTCPldmZ
++UNSv5lN6eX2pjEvpvdJaGH+oSXgYCPX61Ltlk7ETTbfuZSHcggVhJZJoybwrab8
+FgeQs1YvkHV0yJzSWy+ixKhitC4J5/gdAwKK2wIDAQABAoIBAQCRFTJna/xy/WUu
+59FLR4qAOj8++JgCwACpue4oU7/vl6nffSYokWoAr2+RzG4qTX2vFi3cpA8+dGCn
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+ZCb6pMHOhO7saBdiKMAsY8MdjTl/33AduuE6ztqv+L92xTr2g4QlbT1KvWlEgppU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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: ${CODECOV_TOKEN}
+    environment:
+      - "TEST_ES_SERVER=http://elasticsearch-oss:9200"
+    volumes:
+      - ..:/usr/src/app
+      # This will mount the node_modules directory
+      # to the host machine using the buildtime directory.
+      - /usr/src/app/node_modules
+      - esvol:/tmp
+    networks:
+      - esnet-oss
+    depends_on:
+      - elasticsearch-oss
+
+  elasticsearch-oss:
+    image: docker.elastic.co/elasticsearch/elasticsearch:${ELASTICSEARCH_VERSION:-8.0.0-SNAPSHOT}
+    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:-8.0.0-SNAPSHOT}
+    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/jobs/defaults.yml

@@ -0,0 +1,70 @@
+---
+
+##### 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: ELASTICSEARCH_VERSION
+    - axis:
+        type: yaml
+        filename: .ci/test-matrix.yml
+        name: NODE_JS_VERSION
+    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+7.3.yml

@@ -0,0 +1,14 @@
+---
+- job:
+    name: elastic+elasticsearch-js+7.3
+    display-name: 'elastic / elasticsearch-js # 7.3'
+    description: Testing the elasticsearch-js 7.3 branch.
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/7.3
+        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+jenkins-pipelines.yml

@@ -0,0 +1,54 @@
+---
+- job:
+    name: elastic+elasticsearch-js+jenkins-pipelines
+    display-name: 'elastic / elasticsearch-js # jenkins-pipelines'
+    description: Testing the elasticsearch-js jenkins-pipelines branch.
+    project-type: multibranch
+    logrotate:
+      daysToKeep: 30
+      numToKeep: 100
+    number-to-keep: '5'
+    days-to-keep: '1'
+    concurrent: true
+    node: linux
+    script-path: Jenkinsfile
+    scm:
+    - github:
+        branch-discovery: all
+        discover-pr-forks-strategy: merge-current
+        discover-pr-forks-trust: permission
+        discover-pr-origin: merge-current
+        discover-tags: true
+        repo: elasticsearch-js
+        repo-owner: elastic
+        credentials-id: 2a9602aa-ab9f-4e52-baf3-b71ca88469c7-UserAndToken
+        ssh-checkout:
+          credentials: f6c7695a-671e-4f4f-a331-acdce44ff9ba
+        build-strategies:
+        - tags:
+            ignore-tags-older-than: -1
+            ignore-tags-newer-than: -1
+        - regular-branches: true
+        - change-request:
+            ignore-target-only-changes: false
+        clean:
+          after: true
+          before: true
+        prune: true
+        shallow-clone: true
+        depth: 3
+        do-not-fetch-tags: true
+        submodule:
+          disable: false
+          recursive: true
+          parent-credentials: true
+          timeout: 100
+        timeout: '15'
+        use-author: true
+        wipe-workspace: 'True'
+    periodic-folder-trigger: 1d
+    prune-dead-branches: true
+    publishers:
+    - email:
+        recipients: infra-root+build@elastic.co
+

.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/make.mjs

@@ -1,127 +0,0 @@
-/*
- * Licensed to Elasticsearch B.V. under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch B.V. licenses this file to you under
- * the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/* global $ argv */
-
-'use strict'
-
-import 'zx/globals'
-
-import { readFile, writeFile } from 'fs/promises'
-import assert from 'assert'
-import { join } from 'desm'
-import semver from 'semver'
-
-assert(typeof argv.task === 'string', 'Missing task parameter')
-
-switch (argv.task) {
-  case 'release':
-    release(argv._).catch(onError)
-    break
-  case 'bump':
-    bump(argv._).catch(onError)
-    break
-  case 'codegen':
-    codegen(argv._).catch(onError)
-    break
-  default:
-    console.log(`Unknown task: ${argv.task}`)
-    process.exit(1)
-}
-
-async function release (args) {
-  assert(args.length === 2, 'Release task expects two parameters')
-  let [version, outputFolder] = args
-
-  if (process.env.WORKFLOW === 'snapshot' && !version.endsWith('SNAPSHOT')) {
-    version = `${version}-SNAPSHOT`
-  }
-
-  await bump([version])
-
-  const packageJson = JSON.parse(await readFile(
-    join(import.meta.url, '..', 'package.json'),
-    'utf8'
-  ))
-
-  await $`npm run build`
-  await $`npm pack`
-  await $`zip elasticsearch-js-${version}.zip elastic-elasticsearch-${packageJson.version}.tgz`
-  await $`rm elastic-elasticsearch-${packageJson.version}.tgz`
-  await $`mv ${join(import.meta.url, '..', `elasticsearch-js-${version}.zip`)} ${join(import.meta.url, '..', outputFolder, `elasticsearch-js-${version}.zip`)}`
-}
-
-async function bump (args) {
-  assert(args.length === 1, 'Bump task expects one parameter')
-  const [version] = args
-  const packageJson = JSON.parse(await readFile(
-    join(import.meta.url, '..', 'package.json'),
-    'utf8'
-  ))
-
-  const cleanVersion = semver.clean(version.includes('SNAPSHOT') ? version.split('-')[0] : version)
-  assert(semver.valid(cleanVersion))
-  packageJson.version = cleanVersion
-  packageJson.versionCanary = `${cleanVersion}-canary.0`
-
-  await writeFile(
-    join(import.meta.url, '..', 'package.json'),
-    JSON.stringify(packageJson, null, 2),
-    'utf8'
-  )
-
-  const pipeline = await readFile(join(import.meta.url, '..', '.buildkite', 'pipeline.yml'))
-  await writeFile(
-    join(import.meta.url, '..', '.buildkite', 'pipeline.yml'),
-    pipeline.replace(/STACK_VERSION: [0-9]+[0-9\.]*[0-9](?:\-SNAPSHOT)?/, `STACK_VERSION: - ${cleanVersion}-SNAPSHOT`), // eslint-disable-line
-    '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
-
-  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`
-}
-
-function onError (err) {
-  console.log(err)
-  process.exit(1)
-}

.ci/make.sh

@@ -1,187 +0,0 @@
-#!/usr/bin/env bash
-# ------------------------------------------------------- #
-#
-# Build entry script for elasticsearch-js
-#
-# Must be called: ./.ci/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              : generate endpoints
-# docsgen    <VERSION> : generate documentation
-# examplegen           : generate the doc examples
-# clean                : clean workspace
-#
-# ------------------------------------------------------- #
-
-# ------------------------------------------------------- #
-# Bootstrap
-# ------------------------------------------------------- #
-script_path=$(dirname "$(realpath -s "$0")")
-repo=$(realpath "$script_path/../")
-generator=$(realpath "$script_path/../../elastic-client-generator-js")
-
-# shellcheck disable=SC1090
-CMD=$1
-TASK=$1
-TASK_ARGS=()
-VERSION=$2
-STACK_VERSION=$VERSION
-set -euo pipefail
-
-product="elastic/elasticsearch-js"
-output_folder=".ci/output"
-codegen_folder=".ci/output"
-OUTPUT_DIR="$repo/${output_folder}"
-# REPO_BINDING="${OUTPUT_DIR}:/sln/${output_folder}"
-NODE_JS_VERSION=18
-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 artefact $VERSION\033[0m"
-        TASK=release
-        TASK_ARGS=("$VERSION" "$output_folder")
-        ;;
-    codegen)
-        if [ -v $VERSION ]; then
-            echo -e "\033[31;1mTARGET: codegen -> missing version parameter\033[0m"
-            exit 1
-        fi
-        echo -e "\033[36;1mTARGET: codegen API v$VERSION\033[0m"
-        TASK=codegen
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION")
-        ;;
-    docsgen)
-        if [ -v $VERSION ]; then
-            echo -e "\033[31;1mTARGET: docsgen -> missing version parameter\033[0m"
-            exit 1
-        fi
-        echo -e "\033[36;1mTARGET: generate docs for $VERSION\033[0m"
-        TASK=codegen
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION" "$codegen_folder")
-        ;;
-    examplesgen)
-        echo -e "\033[36;1mTARGET: generate examples\033[0m"
-        TASK=codegen
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION" "$codegen_folder")
-        ;;
-    bump)
-        if [ -v $VERSION ]; then
-            echo -e "\033[31;1mTARGET: bump -> missing version parameter\033[0m"
-            exit 1
-        fi
-        echo -e "\033[36;1mTARGET: bump to version $VERSION\033[0m"
-        TASK=bump
-        # VERSION is BRANCH here for now
-        TASK_ARGS=("$VERSION")
-        ;;
-    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 $product container\033[0m"
-
-docker build \
-  --file .ci/Dockerfile \
-  --tag "$product" \
-  --build-arg NODE_JS_VERSION="$NODE_JS_VERSION" \
-  .
-
-# ------------------------------------------------------- #
-# Run the Container
-# ------------------------------------------------------- #
-
-echo -e "\033[34;1mINFO: running $product container\033[0m"
-
-docker run \
-  --volume "$repo:/usr/src/app" \
-  --volume "$generator:/usr/src/elastic-client-generator-js" \
-  --volume /usr/src/app/node_modules \
-  -u "$(id -u):$(id -g)" \
-  --env "WORKFLOW=$WORKFLOW" \
-  --name make-elasticsearch-js \
-  --rm \
-  $product \
-  node .ci/make.mjs --task $TASK "${TASK_ARGS[@]}"
-
-# ------------------------------------------------------- #
-# Post Command tasks & checks
-# ------------------------------------------------------- #
-
-if [[ "$CMD" == "assemble" ]]; then
-	if compgen -G ".ci/output/*" > /dev/null; then
-		echo -e "\033[32;1mTARGET: successfully assembled client v$VERSION\033[0m"
-	else
-		echo -e "\033[31;1mTARGET: assemble failed, empty workspace!\033[0m"
-		exit 1
-	fi
-fi
-
-if [[ "$CMD" == "bump" ]]; then
-  if [ -n "$(git status --porcelain)" ]; then 
-		echo -e "\033[32;1mTARGET: successfully bumped client v$VERSION\033[0m"
-  else 
-		echo -e "\033[31;1mTARGET: failed bumped client v$VERSION\033[0m"
-    exit 1
-  fi
-fi
-
-if [[ "$CMD" == "codegen" ]]; then
-  if [ -n "$(git status --porcelain)" ]; then 
-		echo -e "\033[32;1mTARGET: successfully generated client v$VERSION\033[0m"
-  else 
-		echo -e "\033[31;1mTARGET: failed generating client v$VERSION\033[0m"
-    exit 1
-  fi
-fi
-
-if [[ "$CMD" == "docsgen" ]]; then
-    echo "TODO"
-fi
-
-if [[ "$CMD" == "examplesgen" ]]; then
-    echo "TODO"
-fi

.ci/run-tests

@@ -0,0 +1,110 @@
+#!/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
+#   - $NODE_JS_VERSION
+#
+
+set -eo pipefail
+
+set +x
+export VAULT_TOKEN=$(vault write -field=token auth/approle/login role_id="$VAULT_ROLE_ID" secret_id="$VAULT_SECRET_ID")
+export CODECOV_TOKEN=$(vault read -field=token secret/clients-ci/elasticsearch-js/codecov)
+unset VAULT_ROLE_ID VAULT_SECRET_ID VAULT_TOKEN
+set -x
+
+function cleanup {
+  docker container rm --force --volumes elasticsearch-oss > /dev/null 2>&1 || true
+  docker container rm --force --volumes elasticsearch-platinum > /dev/null 2>&1 || true
+  docker container rm --force --volumes elasticsearch-js-oss > /dev/null 2>&1 || true
+  docker container rm --force --volumes elasticsearch-js-platinum > /dev/null 2>&1 || true
+  docker network rm esnet-oss > /dev/null
+  docker network rm esnet-platinum > /dev/null
+}
+
+trap cleanup EXIT
+
+# create network and volume
+docker network create esnet-oss
+docker network create esnet-platinum
+
+# create client image
+docker build \
+  --file .ci/Dockerfile \
+  --tag elastic/elasticsearch-js \
+  --build-arg NODE_JS_VERSION=${NODE_JS_VERSION} \
+  .
+
+# run elasticsearch oss
+docker run \
+  --rm \
+  --env "node.attr.testattr=test" \
+  --env "path.repo=/tmp" \
+  --env "repositories.url.allowed_urls=http://snapshot.*" \
+  --env "discovery.type=single-node" \
+  --network=esnet-oss \
+  --name=elasticsearch-oss \
+  --detach \
+  docker.elastic.co/elasticsearch/elasticsearch-oss:${ELASTICSEARCH_VERSION}
+
+# run elasticsearch platinum
+repo=$(pwd)
+testnodecrt="/.ci/certs/testnode.crt"
+testnodekey="/.ci/certs/testnode.key"
+cacrt="/.ci/certs/ca.crt"
+
+docker run \
+  --rm \
+  --env "node.attr.testattr=test" \
+  --env "path.repo=/tmp" \
+  --env "repositories.url.allowed_urls=http://snapshot.*" \
+  --env "discovery.type=single-node" \
+  --env "ES_JAVA_OPTS=-Xms1g -Xmx1g" \
+  --env "ELASTIC_PASSWORD=changeme" \
+  --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.key=certs/testnode.key" \
+  --env "xpack.security.transport.ssl.certificate=certs/testnode.crt" \
+  --env "xpack.security.transport.ssl.certificate_authorities=certs/ca.crt" \
+  --volume "$repo$testnodecrt:/usr/share/elasticsearch/config/certs/testnode.crt" \
+  --volume "$repo$testnodekey:/usr/share/elasticsearch/config/certs/testnode.key" \
+  --volume "$repo$cacrt:/usr/share/elasticsearch/config/certs/ca.crt" \
+  --network=esnet-platinum \
+  --name=elasticsearch-platinum \
+  --detach \
+  docker.elastic.co/elasticsearch/elasticsearch:${ELASTICSEARCH_VERSION}
+
+# run the client unit and oss integration test
+docker run \
+  --network=esnet-oss \
+  --env "TEST_ES_SERVER=http://elasticsearch-oss:9200" \
+  --env "CODECOV_TOKEN" \
+  --volume $repo:/usr/src/app \
+  --volume /usr/src/app/node_modules \
+  --name elasticsearch-js-oss \
+  --rm \
+  elastic/elasticsearch-js \
+  npm run ci
+
+# run the client platinium integration test
+docker run \
+  --network=esnet-platinum \
+  --env "TEST_ES_SERVER=https://elastic:changeme@elasticsearch-platinum:9200" \
+  --volume $repo:/usr/src/app \
+  --volume /usr/src/app/node_modules \
+  --name elasticsearch-js-platinum \
+  --rm \
+  elastic/elasticsearch-js \
+  npm run test:integration
+

.ci/test-matrix.yml

@@ -0,0 +1,10 @@
+---
+ELASTICSEARCH_VERSION:
+  - 7.3.0
+
+NODE_JS_VERSION:
+  - 12
+  - 10
+  - 8
+
+exclude: ~

.codecov.yml

@@ -3,7 +3,7 @@ comment: off
 coverage:
   precision: 2
   round: down
-  range: "95...100"
+  range: "90...100"
 
   status:
     project: yes

.github/ISSUE_TEMPLATE/regression.md

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

.github/stale.yml

@@ -10,7 +10,6 @@ exemptLabels:
   - "feature request"
   - "bug"
   - "todo"
-  - "good first issue"
 
 # Label to use when marking an issue as stale
 staleLabel: stale

.github/workflows/backport.yml

@@ -1,16 +0,0 @@
-name: Backport
-on:
-  pull_request:
-    types:
-      - closed
-      - labeled
-
-jobs:
-  backport:
-    runs-on: ubuntu-latest
-    name: Backport
-    steps:
-      - name: Backport
-        uses: tibdex/backport@v2
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/nodejs.yml

@@ -1,57 +0,0 @@
-name: Node CI
-
-on: [push, pull_request]
-
-jobs:
-  test:
-    name: Test
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      matrix:
-        node-version: [14.x, 16.x, 18.x, 20.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: Lint
-      run: |
-        npm run lint
-
-    - name: Unit test
-      run: |
-        npm run test:unit
-
-  license:
-    name: License check
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        node-version: [20.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: License checker
-      run: |
-        npm run license-checker

.gitignore

@@ -45,9 +45,6 @@ jspm_packages
 # vim swap files
 *.swp
 
-#Jetbrains editor folder
-.idea
-
 package-lock.json
 
 # elasticsearch repo or binary files
@@ -56,10 +53,3 @@ elasticsearch*
 test/benchmarks/macro/fixtures/*
 
 *-junit.xml
-
-.cache
-
-test/bundlers/**/bundle.js
-test/bundlers/parcel-test/.parcel-cache
-
-lib

.npmignore

@@ -70,5 +70,3 @@ certs
 .github
 CODE_OF_CONDUCT.md
 CONTRIBUTING.md
-
-src

.travis.yml

@@ -0,0 +1,22 @@
+language: node_js
+
+node_js:
+  - "12"
+  - "10"
+  - "8"
+
+os:
+  - windows
+  - linux
+
+install:
+  - npm install
+
+script:
+  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then npm run license-checker; fi
+  - npm run test
+
+notifications:
+  email:
+    on_success: never
+    on_failure: always

CHANGELOG.md

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

LICENSE

@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2020 Elastic and contributors
+   Copyright [yyyy] [name of copyright owner]
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

Makefile

@@ -1,11 +0,0 @@
-.PHONY: integration-setup
-integration-setup: integration-cleanup
-	DETACH=true .ci/run-elasticsearch.sh
-
-.PHONY: integration-cleanup
-integration-cleanup:
-	docker container rm --force --volumes instance || true
-
-.PHONY: integration
-integration: integration-setup
-	npm run test:integration

NOTICE.txt

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

README.md

@@ -2,10 +2,16 @@
 
 # Elasticsearch Node.js client
 
-[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](http://standardjs.com/)  [![Build Status](https://clients-ci.elastic.co/buildStatus/icon?job=elastic%2Belasticsearch-js%2Bmain)](https://clients-ci.elastic.co/view/JavaScript/job/elastic+elasticsearch-js+main/)  [![Node CI](https://github.com/elastic/elasticsearch-js/actions/workflows/nodejs.yml/badge.svg)](https://github.com/elastic/elasticsearch-js/actions/workflows/nodejs.yml)  [![codecov](https://codecov.io/gh/elastic/elasticsearch-js/branch/master/graph/badge.svg)](https://codecov.io/gh/elastic/elasticsearch-js)  [![NPM downloads](https://img.shields.io/npm/dm/@elastic/elasticsearch.svg?style=flat)](https://www.npmjs.com/package/@elastic/elasticsearch)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](http://standardjs.com/)  [![Build Status](https://clients-ci.elastic.co/job/elastic+elasticsearch-js+master/badge/icon)](https://clients-ci.elastic.co/job/elastic+elasticsearch-js+master/)  [![codecov](https://codecov.io/gh/elastic/elasticsearch-js/branch/master/graph/badge.svg)](https://codecov.io/gh/elastic/elasticsearch-js)  [![NPM downloads](https://img.shields.io/npm/dm/@elastic/elasticsearch.svg?style=flat)](https://www.npmjs.com/package/@elastic/elasticsearch)
 
 The official Node.js client for Elasticsearch.
 
+---
+
+**Note:** In the past months we have worked on the new Elasticsearch Node.js client and you can use it by following the instructions below. If you're going to use the legacy one or report an issue, however, please check out [elastic/elasticsearch-js-legacy](https://github.com/elastic/elasticsearch-js-legacy).
+
+---
+
 ## Features
 - One-to-one mapping with REST API.
 - Generalized, pluggable architecture.
@@ -20,42 +26,15 @@ The official Node.js client for Elasticsearch.
 npm install @elastic/elasticsearch
 ```
 
-### Node.js support
-
-NOTE: The minimum supported version of Node.js is `v14`.
-
-The client versioning follows the Elastic Stack versioning, this means that
-major, minor, and patch releases are done following a precise schedule that
-often does not coincide with the [Node.js release](https://nodejs.org/en/about/releases/) times.
-
-To avoid support insecure and unsupported versions of Node.js, the
-client **will drop the support of EOL versions of Node.js between minor releases**.
-Typically, as soon as a Node.js version goes into EOL, the client will continue
-to support that version for at least another minor release. If you are using the client
-with a version of Node.js that will be unsupported soon, you will see a warning
-in your logs (the client will start logging the warning with two minors in advance).
-
-Unless you are **always** using a supported version of Node.js, 
-we recommend defining the client dependency in your
-`package.json` with the `~` instead of `^`. In this way, you will lock the
-dependency on the minor release and not the major. (for example, `~7.10.0` instead
-of `^7.10.0`).
-
-| Node.js Version | Node.js EOL date | End of support         |
-| --------------- |------------------| ---------------------- |
-| `8.x`           | `December 2019`  | `7.11` (early 2021)    |
-| `10.x`          | `April 2021`     | `7.12` (mid 2021)      |
-| `12.x`          | `April 2022`     | `8.2` (early 2022)     |
-| `14.x`          | `April 2023`     | `8.8` (early 2023)     |
-
 ### Compatibility
 
-Language clients are forward compatible; meaning that clients support communicating with greater or equal minor versions of Elasticsearch.
-Elasticsearch language clients are only backwards compatible with default distributions and without guarantees made.
+The minimum supported version of Node.js is `v8`.
+
+The library is compatible with all Elasticsearch versions since 5.x, and you should use the same major version of the Elasticsearch instance that you are using.
 
 | Elasticsearch Version | Client Version |
 | --------------------- |----------------|
-| `8.x`                 | `8.x`          |
+| `master`              | `master`       |
 | `7.x`                 | `7.x`          |
 | `6.x`                 | `6.x`          |
 | `5.x`                 | `5.x`          |
@@ -68,38 +47,70 @@ npm install @elastic/elasticsearch@<major>
 #### Browser
 
 WARNING: There is no official support for the browser environment. It exposes your Elasticsearch instance to everyone, which could lead to security issues.
-We recommend that you write a lightweight proxy that uses this client instead, you can see a proxy example [here](./docs/examples/proxy).
+We recommend that you write a lightweight proxy that uses this client instead.
 
 ## Documentation
 
 - [Introduction](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/introduction.html)
-- [Usage](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-connecting.html#client-usage)
+- [Usage](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-usage.html)
 - [Client configuration](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-configuration.html)
 - [API reference](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/api-reference.html)
-- [Authentication](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-connecting.html#authentication)
+- [Breaking changes coming from the old client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/breaking-changes.html)
+- [Authentication](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/auth-reference.html)
 - [Observability](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/observability.html)
-- [Creating a child client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/child.html)
-- [Client helpers](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-helpers.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)
-- [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)
 
 ## 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({
-  cloud: { id: '<cloud-id>' },
-  auth: { apiKey: 'base64EncodedKey' }
-})
+const client = new Client({ node: 'http://localhost:9200' })
 
 async function run () {
   // Let's start by indexing some data
   await client.index({
     index: 'game-of-thrones',
-    document: {
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
       character: 'Ned Stark',
       quote: 'Winter is coming.'
     }
@@ -107,7 +118,8 @@ async function run () {
 
   await client.index({
     index: 'game-of-thrones',
-    document: {
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
       character: 'Daenerys Targaryen',
       quote: 'I am the blood of the dragon.'
     }
@@ -115,7 +127,8 @@ async function run () {
 
   await client.index({
     index: 'game-of-thrones',
-    document: {
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
       character: 'Tyrion Lannister',
       quote: 'A mind needs books like a sword needs a whetstone.'
     }
@@ -126,14 +139,17 @@ async function run () {
   await client.indices.refresh({ index: 'game-of-thrones' })
 
   // Let's search!
-  const result= await client.search({
+  const { body } = await client.search({
     index: 'game-of-thrones',
-    query: {
-      match: { quote: 'winter' }
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      query: {
+        match: { quote: 'winter' }
+      }
     }
   })
 
-  console.log(result.hits.hits)
+  console.log(body.hits.hits)
 }
 
 run().catch(console.log)
@@ -163,24 +179,18 @@ You will require the packages from your code by using the alias you have defined
 const { Client: Client6 } = require('es6')
 const { Client: Client7 } = require('es7')
 
-const client6 = new Client6({
-  cloud: { id: '<cloud-id>' },
-  auth: { apiKey: 'base64EncodedKey' }
-})
-const client7 = new Client7({
-  cloud: { id: '<cloud-id>' },
-  auth: { apiKey: 'base64EncodedKey' }
-})
+const client6 = new Client6({ node: 'http://localhost:9200' })
+const client7 = new Client7({ node: 'http://localhost:9201' })
 
-client6.info().then(console.log, console.log)
-client7.info().then(console.log, console.log)
+client6.info(console.log)
+client7.info(console.log)
 ```
 
-Finally, if you want to install the client for the next version of Elasticsearch *(the one that lives in Elasticsearch’s main branch)*, you can use the following command:
+Finally, if you want to install the client for the next version of Elasticsearch *(the one that lives in Elasticsearch’s master branch)*, you can use the following command:
 ```sh
-npm install esmain@github:elastic/elasticsearch-js
+npm install esmaster@github:elastic/elasticsearch-js
 ```
 
 ## License
 
-This software is licensed under the [Apache License 2.0](./LICENSE).
+This software is licensed under the [Apache 2 license](./LICENSE).

api/api/bulk.js

@@ -0,0 +1,125 @@
+// 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} _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',
+    '_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 +1,114 @@
+// 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
+   * @param {boolean} include_unloaded_segments - If set to true segment stats will include stats for segments that are not currently loaded into memory
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'health',
+    'help',
+    'pri',
+    's',
+    'v',
+    'include_unloaded_segments',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    includeUnloadedSegments: 'include_unloaded_segments',
+    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 +1,81 @@
+// 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 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 = {}
+    }
+
+    // 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 = '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-body.html#request-body-search-scroll) 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 +1,120 @@
+// 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} expand_wildcards - Whether to expand wildcard expression to concrete indices that are open, closed or both.
+   * @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 = [
+    'expand_wildcards',
+    'level',
+    'local',
+    'master_timeout',
+    'timeout',
+    'wait_for_active_shards',
+    'wait_for_nodes',
+    'wait_for_events',
+    'wait_for_no_relocating_shards',
+    'wait_for_no_initializing_shards',
+    'wait_for_status',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    expandWildcards: 'expand_wildcards',
+    masterTimeout: 'master_timeout',
+    waitForActiveShards: 'wait_for_active_shards',
+    waitForNodes: 'wait_for_nodes',
+    waitForEvents: 'wait_for_events',
+    waitForNoRelocatingShards: 'wait_for_no_relocating_shards',
+    waitForNoInitializingShards: 'wait_for_no_initializing_shards',
+    waitForStatus: 'wait_for_status',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  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

api/api/cluster.stats.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 buildClusterStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.stats](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-stats.html) request
+   *
+   * @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 {boolean} flat_settings - Return settings in flat format (default: false)
+   * @param {time} timeout - Explicit operation timeout
+   */
+
+  const acceptedQuerystring = [
+    'flat_settings',
+    'timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    flatSettings: 'flat_settings',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterStats (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // 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 = '/' + '_cluster' + '/' + 'stats' + '/' + 'nodes' + '/' + encodeURIComponent(node_id || nodeId)
+    } else {
+      path = '/' + '_cluster' + '/' + 'stats'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterStats

api/api/count.js

@@ -0,0 +1,130 @@
+// 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 buildCount (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [count](http://www.elastic.co/guide/en/elasticsearch/reference/master/search-count.html) request
+   *
+   * @param {list} index - A comma-separated list of indices to restrict the results
+   * @param {list} type - A comma-separated list of types to restrict the results
+   * @param {boolean} ignore_unavailable - Whether specified concrete indices should be ignored when unavailable (missing or closed)
+   * @param {boolean} ignore_throttled - Whether specified concrete, expanded or aliased indices should be ignored when throttled
+   * @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.
+   * @param {number} min_score - Include only documents with a specific `_score` value in the result
+   * @param {string} preference - Specify the node or shard the operation should be performed on (default: random)
+   * @param {list} routing - A comma-separated list of specific routing values
+   * @param {string} q - Query in the Lucene query string syntax
+   * @param {string} analyzer - The analyzer to use for the query string
+   * @param {boolean} analyze_wildcard - Specify whether wildcard and prefix queries should be analyzed (default: false)
+   * @param {enum} default_operator - The default operator for query string query (AND or OR)
+   * @param {string} df - The field to use as default where no field prefix is given in the query string
+   * @param {boolean} lenient - Specify whether format-based query failures (such as providing text to a numeric field) should be ignored
+   * @param {number} terminate_after - The maximum count for each shard, upon reaching which the query execution will terminate early
+   * @param {object} body - A query to restrict the results specified with the Query DSL (optional)
+   */
+
+  const acceptedQuerystring = [
+    'ignore_unavailable',
+    'ignore_throttled',
+    'allow_no_indices',
+    'expand_wildcards',
+    'min_score',
+    'preference',
+    'routing',
+    'q',
+    'analyzer',
+    'analyze_wildcard',
+    'default_operator',
+    'df',
+    'lenient',
+    'terminate_after',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    ignoreUnavailable: 'ignore_unavailable',
+    ignoreThrottled: 'ignore_throttled',
+    allowNoIndices: 'allow_no_indices',
+    expandWildcards: 'expand_wildcards',
+    minScore: 'min_score',
+    analyzeWildcard: 'analyze_wildcard',
+    defaultOperator: 'default_operator',
+    terminateAfter: 'terminate_after',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function count (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // 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 = body == null ? 'GET' : 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_count'
+    } else if ((index) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + '_count'
+    } else {
+      path = '/' + '_count'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCount

api/api/create.js

@@ -0,0 +1,117 @@
+// 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 buildCreate (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [create](http://www.elastic.co/guide/en/elasticsearch/reference/master/docs-index_.html) request
+   *
+   * @param {string} id - Document ID
+   * @param {string} index - The name of the index
+   * @param {string} type - The type of the document
+   * @param {string} wait_for_active_shards - Sets the number of shard copies that must be active before proceeding with the index 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 affected 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 {number} version - Explicit version number for concurrency control
+   * @param {enum} version_type - Specific version type
+   * @param {string} pipeline - The pipeline id to preprocess incoming documents with
+   * @param {object} body - The document
+   */
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards',
+    'refresh',
+    'routing',
+    'timeout',
+    'version',
+    'version_type',
+    'pipeline',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards',
+    versionType: 'version_type',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function create (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, id, index, type, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'PUT'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null && (id) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_create'
+    } else {
+      path = '/' + encodeURIComponent(index) + '/' + '_create' + '/' + encodeURIComponent(id)
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCreate

api/api/data_frame.delete_data_frame_transform.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 buildDataFrameDeleteDataFrameTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [data_frame.delete_data_frame_transform](https://www.elastic.co/guide/en/elasticsearch/reference/current/delete-data-frame-transform.html) request
+   *
+   * @param {string} transform_id - The id of the transform to delete
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function dataFrameDeleteDataFrameTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+    if (params.body != null) {
+      const err = new ConfigurationError('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, transformId, transform_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 = ''
+
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameDeleteDataFrameTransform

api/api/data_frame.get_data_frame_transform.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 buildDataFrameGetDataFrameTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [data_frame.get_data_frame_transform](https://www.elastic.co/guide/en/elasticsearch/reference/current/get-data-frame-transform.html) request
+   *
+   * @param {string} transform_id - The id or comma delimited list of id expressions of the transforms to get, '_all' or '*' implies get all transforms
+   * @param {int} from - skips a number of transform configs, defaults to 0
+   * @param {int} size - specifies a max number of transforms to get, defaults to 100
+   * @param {boolean} allow_no_match - Whether to ignore if a wildcard expression matches no data frame transforms. (This includes `_all` string or when no data frame transforms have been specified)
+   */
+
+  const acceptedQuerystring = [
+    'from',
+    'size',
+    'allow_no_match'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match'
+  }
+
+  return function dataFrameGetDataFrameTransform (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, transformId, transform_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 ((transform_id || transformId) != null) {
+      path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId)
+    } else {
+      path = '/' + '_data_frame' + '/' + 'transforms'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameGetDataFrameTransform

api/api/data_frame.get_data_frame_transform_stats.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 buildDataFrameGetDataFrameTransformStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [data_frame.get_data_frame_transform_stats](https://www.elastic.co/guide/en/elasticsearch/reference/current/get-data-frame-transform-stats.html) request
+   *
+   * @param {string} transform_id - The id of the transform for which to get stats. '_all' or '*' implies all transforms
+   * @param {number} from - skips a number of transform stats, defaults to 0
+   * @param {number} size - specifies a max number of transform stats to get, defaults to 100
+   * @param {boolean} allow_no_match - Whether to ignore if a wildcard expression matches no data frame transforms. (This includes `_all` string or when no data frame transforms have been specified)
+   */
+
+  const acceptedQuerystring = [
+    'from',
+    'size',
+    'allow_no_match'
+  ]
+
+  const snakeCase = {
+    allowNoMatch: 'allow_no_match'
+  }
+
+  return function dataFrameGetDataFrameTransformStats (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, transformId, transform_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 = ''
+
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_stats'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameGetDataFrameTransformStats

api/api/data_frame.preview_data_frame_transform.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 buildDataFramePreviewDataFrameTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [data_frame.preview_data_frame_transform](https://www.elastic.co/guide/en/elasticsearch/reference/current/preview-data-frame-transform.html) request
+   *
+   * @param {object} body - The definition for the data_frame transform to preview
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function dataFramePreviewDataFrameTransform (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 = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_data_frame' + '/' + 'transforms' + '/' + '_preview'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFramePreviewDataFrameTransform

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

api/api/data_frame.start_data_frame_transform.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 buildDataFrameStartDataFrameTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [data_frame.start_data_frame_transform](https://www.elastic.co/guide/en/elasticsearch/reference/current/start-data-frame-transform.html) request
+   *
+   * @param {string} transform_id - The id of the transform to start
+   * @param {time} timeout - Controls the time to wait for the transform to start
+   */
+
+  const acceptedQuerystring = [
+    'timeout'
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function dataFrameStartDataFrameTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+    if (params.body != null) {
+      const err = new ConfigurationError('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, transformId, transform_id, ...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 = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_start'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameStartDataFrameTransform

api/api/data_frame.stop_data_frame_transform.js

@@ -0,0 +1,91 @@
+// 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 buildDataFrameStopDataFrameTransform (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [data_frame.stop_data_frame_transform](https://www.elastic.co/guide/en/elasticsearch/reference/current/stop-data-frame-transform.html) request
+   *
+   * @param {string} transform_id - The id of the transform to stop
+   * @param {boolean} wait_for_completion - Whether to wait for the transform to fully stop before returning or not. Default to false
+   * @param {time} timeout - Controls the time to wait until the transform has stopped. Default to 30 seconds
+   * @param {boolean} allow_no_match - Whether to ignore if a wildcard expression matches no data frame transforms. (This includes `_all` string or when no data frame transforms have been specified)
+   */
+
+  const acceptedQuerystring = [
+    'wait_for_completion',
+    'timeout',
+    'allow_no_match'
+  ]
+
+  const snakeCase = {
+    waitForCompletion: 'wait_for_completion',
+    allowNoMatch: 'allow_no_match'
+  }
+
+  return function dataFrameStopDataFrameTransform (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['transform_id'] == null && params['transformId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: transform_id or transformId')
+      return handleError(err, callback)
+    }
+    if (params.body != null) {
+      const err = new ConfigurationError('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, transformId, transform_id, ...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 = '/' + '_data_frame' + '/' + 'transforms' + '/' + encodeURIComponent(transform_id || transformId) + '/' + '_stop'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDataFrameStopDataFrameTransform

api/api/delete.js

@@ -0,0 +1,120 @@
+// 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 buildDelete (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [delete](http://www.elastic.co/guide/en/elasticsearch/reference/master/docs-delete.html) request
+   *
+   * @param {string} id - The document ID
+   * @param {string} index - The name of the index
+   * @param {string} type - The type of the document
+   * @param {string} wait_for_active_shards - Sets the number of shard copies that must be active before proceeding with the delete 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 {number} if_seq_no - only perform the delete operation if the last operation that has changed the document has the specified sequence number
+   * @param {number} if_primary_term - only perform the delete operation if the last operation that has changed the document has the specified primary term
+   * @param {number} version - Explicit version number for concurrency control
+   * @param {enum} version_type - Specific version type
+   */
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards',
+    'refresh',
+    'routing',
+    'timeout',
+    'if_seq_no',
+    'if_primary_term',
+    'version',
+    'version_type',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards',
+    ifSeqNo: 'if_seq_no',
+    ifPrimaryTerm: 'if_primary_term',
+    versionType: 'version_type',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function _delete (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    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, id, index, type, ...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 ((index) != null && (type) != null && (id) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id)
+    } else {
+      path = '/' + encodeURIComponent(index) + '/' + '_doc' + '/' + encodeURIComponent(id)
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDelete

api/api/delete_by_query.js

@@ -0,0 +1,188 @@
+// 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 buildDeleteByQuery (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [delete_by_query](https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-delete-by-query.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
+   * @param {list} type - A comma-separated list of document types to search; leave empty to perform the operation on all types
+   * @param {string} analyzer - The analyzer to use for the query string
+   * @param {boolean} analyze_wildcard - Specify whether wildcard and prefix queries should be analyzed (default: false)
+   * @param {enum} default_operator - The default operator for query string query (AND or OR)
+   * @param {string} df - The field to use as default where no field prefix is given in the query string
+   * @param {number} from - Starting offset (default: 0)
+   * @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} conflicts - What to do when the delete by query hits version conflicts?
+   * @param {enum} expand_wildcards - Whether to expand wildcard expression to concrete indices that are open, closed or both.
+   * @param {boolean} lenient - Specify whether format-based query failures (such as providing text to a numeric field) should be ignored
+   * @param {string} preference - Specify the node or shard the operation should be performed on (default: random)
+   * @param {string} q - Query in the Lucene query string syntax
+   * @param {list} routing - A comma-separated list of specific routing values
+   * @param {time} scroll - Specify how long a consistent view of the index should be maintained for scrolled search
+   * @param {enum} search_type - Search operation type
+   * @param {time} search_timeout - Explicit timeout for each search request. Defaults to no timeout.
+   * @param {number} size - Deprecated, please use `max_docs` instead
+   * @param {number} max_docs - Maximum number of documents to process (default: all documents)
+   * @param {list} sort - A comma-separated list of <field>:<direction> pairs
+   * @param {list} _source - True or false to return the _source field or not, or a list of fields to return
+   * @param {list} _source_excludes - A list of fields to exclude from the returned _source field
+   * @param {list} _source_includes - A list of fields to extract and return from the _source field
+   * @param {number} terminate_after - The maximum number of documents to collect for each shard, upon reaching which the query execution will terminate early.
+   * @param {list} stats - Specific 'tag' of the request for logging and statistical purposes
+   * @param {boolean} version - Specify whether to return document version as part of a hit
+   * @param {boolean} request_cache - Specify if request cache should be used for this request or not, defaults to index level setting
+   * @param {boolean} refresh - Should the effected indexes be refreshed?
+   * @param {time} timeout - Time each individual bulk request should wait for shards that are unavailable.
+   * @param {string} wait_for_active_shards - Sets the number of shard copies that must be active before proceeding with the delete by query 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 {number} scroll_size - Size on the scroll request powering the delete by query
+   * @param {boolean} wait_for_completion - Should the request should block until the delete by query is complete.
+   * @param {number} requests_per_second - The throttle for this request in sub-requests per second. -1 means no throttle.
+   * @param {number} slices - The number of slices this task should be divided into. Defaults to 1 meaning the task isn't sliced into subtasks.
+   * @param {object} body - The search definition using the Query DSL
+   */
+
+  const acceptedQuerystring = [
+    'analyzer',
+    'analyze_wildcard',
+    'default_operator',
+    'df',
+    'from',
+    'ignore_unavailable',
+    'allow_no_indices',
+    'conflicts',
+    'expand_wildcards',
+    'lenient',
+    'preference',
+    'q',
+    'routing',
+    'scroll',
+    'search_type',
+    'search_timeout',
+    'size',
+    'max_docs',
+    'sort',
+    '_source',
+    '_source_excludes',
+    '_source_exclude',
+    '_source_includes',
+    '_source_include',
+    'terminate_after',
+    'stats',
+    'version',
+    'request_cache',
+    'refresh',
+    'timeout',
+    'wait_for_active_shards',
+    'scroll_size',
+    'wait_for_completion',
+    'requests_per_second',
+    'slices',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    analyzeWildcard: 'analyze_wildcard',
+    defaultOperator: 'default_operator',
+    ignoreUnavailable: 'ignore_unavailable',
+    allowNoIndices: 'allow_no_indices',
+    expandWildcards: 'expand_wildcards',
+    searchType: 'search_type',
+    searchTimeout: 'search_timeout',
+    maxDocs: 'max_docs',
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    terminateAfter: 'terminate_after',
+    requestCache: 'request_cache',
+    waitForActiveShards: 'wait_for_active_shards',
+    scrollSize: 'scroll_size',
+    waitForCompletion: 'wait_for_completion',
+    requestsPerSecond: 'requests_per_second',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function deleteByQuery (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // 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) + '/' + '_delete_by_query'
+    } else {
+      path = '/' + encodeURIComponent(index) + '/' + '_delete_by_query'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDeleteByQuery

api/api/delete_by_query_rethrottle.js

@@ -0,0 +1,97 @@
+// 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 buildDeleteByQueryRethrottle (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [delete_by_query_rethrottle](https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-delete-by-query.html) request
+   *
+   * @param {string} task_id - The task id to rethrottle
+   * @param {number} requests_per_second - The throttle to set on this request in floating sub-requests per second. -1 means set no throttle.
+   */
+
+  const acceptedQuerystring = [
+    'requests_per_second',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    requestsPerSecond: 'requests_per_second',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function deleteByQueryRethrottle (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['task_id'] == null && params['taskId'] == null) {
+      const err = new ConfigurationError('Missing required parameter: task_id or taskId')
+      return handleError(err, callback)
+    }
+    if (params['requests_per_second'] == null && params['requestsPerSecond'] == null) {
+      const err = new ConfigurationError('Missing required parameter: requests_per_second or requestsPerSecond')
+      return handleError(err, callback)
+    }
+    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, taskId, task_id, ...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 = '/' + '_delete_by_query' + '/' + encodeURIComponent(task_id || taskId) + '/' + '_rethrottle'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDeleteByQueryRethrottle

api/api/delete_script.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 buildDeleteScript (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [delete_script](http://www.elastic.co/guide/en/elasticsearch/reference/master/modules-scripting.html) request
+   *
+   * @param {string} id - Script ID
+   * @param {time} timeout - Explicit operation timeout
+   * @param {time} master_timeout - Specify timeout for connection to master
+   */
+
+  const acceptedQuerystring = [
+    'timeout',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function deleteScript (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+    if (params.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, 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 = ''
+
+    path = '/' + '_scripts' + '/' + encodeURIComponent(id)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildDeleteScript

api/api/exists.js

@@ -0,0 +1,128 @@
+// 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 buildExists (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [exists](http://www.elastic.co/guide/en/elasticsearch/reference/master/docs-get.html) request
+   *
+   * @param {string} id - The document ID
+   * @param {string} index - The name of the index
+   * @param {string} type - The type of the document (use `_all` to fetch the first document matching the ID across all types)
+   * @param {list} stored_fields - A comma-separated list of stored fields to return in the response
+   * @param {string} preference - Specify the node or shard the operation should be performed on (default: random)
+   * @param {boolean} realtime - Specify whether to perform the operation in realtime or search mode
+   * @param {boolean} refresh - Refresh the shard containing the document before performing the operation
+   * @param {string} routing - Specific routing value
+   * @param {list} _source - True or false to return the _source field or not, or a list of fields to return
+   * @param {list} _source_excludes - A list of fields to exclude from the returned _source field
+   * @param {list} _source_includes - A list of fields to extract and return from the _source field
+   * @param {number} version - Explicit version number for concurrency control
+   * @param {enum} version_type - Specific version type
+   */
+
+  const acceptedQuerystring = [
+    'stored_fields',
+    'preference',
+    'realtime',
+    'refresh',
+    'routing',
+    '_source',
+    '_source_excludes',
+    '_source_exclude',
+    '_source_includes',
+    '_source_include',
+    'version',
+    'version_type',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    storedFields: 'stored_fields',
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    versionType: 'version_type',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function exists (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['id'] == null) {
+      const err = new ConfigurationError('Missing required parameter: id')
+      return handleError(err, callback)
+    }
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params.body != null) {
+      const err = new ConfigurationError('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, id, index, type, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'HEAD'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null && (id) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id)
+    } else {
+      path = '/' + encodeURIComponent(index) + '/' + '_doc' + '/' + encodeURIComponent(id)
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildExists