Bumped v6.8.6

* ApiKey should take precedence over basic auth

* Updated docs

* Updated test

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

.backportrc.json

@@ -1,8 +0,0 @@
-{
-  "upstream": "elastic/elasticsearch-js",
-  "branches": [
-    { "name": "15.x", "checked": true },
-    "14.x"
-  ],
-  "labels": ["backport"]
-}

.ci/Dockerfile

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

.ci/certs/ca.crt

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDSjCCAjKgAwIBAgIVAJQLm8V2LcaCTHUcoIfO+KL63nG3MA0GCSqGSIb3DQEB
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+-----END CERTIFICATE-----

.ci/certs/ca.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpgIBAAKCAQEA2Mmo5D7xrVDhOTNTqMEHwZFla1o6NfiyMc4AnkR6dGM7S7XV
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+-----END RSA PRIVATE KEY-----

.ci/certs/testnode.crt

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDIzCCAgugAwIBAgIVAMTO6uVx9dLox2t0lY4IcBKZXb5WMA0GCSqGSIb3DQEB
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+-----END CERTIFICATE-----

.ci/certs/testnode.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEogIBAAKCAQEAymC0zopFRDYjf6mLqTrKF3e1WGJ68snwgv3SuBQtmqM5G6ox
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+-----END RSA PRIVATE KEY-----

.ci/certs/testnode_san.crt

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

.ci/certs/testnode_san.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEogIBAAKCAQEAhQ+3brs03bXP7e6RqN6Px6iNJfA/rMfHLsJQCn6xDttOrZcI
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+NPvr/9fHhQd9EDWDvS1JnVMAdKDO6ELp3SoKGGmCXR2QplnqWAk=
+-----END RSA PRIVATE KEY-----

.ci/docker-compose.yml

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

.ci/docker/Dockerfile

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

.ci/functions/cleanup.sh

@@ -0,0 +1,67 @@
+#!/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"
+};

.ci/functions/imports.sh

@@ -0,0 +1,60 @@
+#!/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-oss}
+  export RUNSCRIPTS=${RUNSCRIPTS-}
+  export DETACH=${DETACH-false}
+  export CLEANUP=${CLEANUP-false}
+
+  export es_node_name=instance
+  export elastic_password=changeme
+  export elasticsearch_image=elasticsearch
+  export elasticsearch_url=https://elastic:${elastic_password}@${es_node_name}:9200
+  if [[ $TEST_SUITE != "xpack" ]]; then
+    export elasticsearch_image=elasticsearch-${TEST_SUITE}
+    export elasticsearch_url=http://${es_node_name}:9200
+  fi
+  export external_elasticsearch_url=${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"
+

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

@@ -0,0 +1,36 @@
+#!/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
+}

.ci/jobs/defaults.yml

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

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

@@ -0,0 +1,14 @@
+---
+- job:
+    name: elastic+elasticsearch-js+5.x
+    display-name: 'elastic / elasticsearch-js # 5.x'
+    description: Testing the elasticsearch-js 5.x branch.
+    parameters:
+    - string:
+        name: branch_specifier
+        default: refs/heads/5.x
+        description: the Git branch specifier to build (<branchName>, <tagName>,
+          <commitId>, etc.)
+    triggers:
+    - github
+    - timed: '@weekly'

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

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

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

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

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

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

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

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

.ci/packer_cache.sh

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

.ci/run-elasticsearch.sh

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

.ci/run-tests

@@ -8,7 +8,48 @@
 #
 #   - $ELASTICSEARCH_VERSION
 #   - $NODE_JS_VERSION
+#   - $TEST_SUITE
 #
 
-# TODO: implement the docker-based testing
-echo docker-compose [...]
+set -eo pipefail
+
+ELASTICSEARCH_VERSION=${STACK_VERSION}
+
+docker build \
+  --file .ci/Dockerfile \
+  --tag elastic/elasticsearch-js \
+  --build-arg NODE_JS_VERSION=${NODE_JS_VERSION} \
+  .
+
+NODE_NAME="es1"
+repo=$(pwd)
+testnodecrt="/.ci/certs/testnode.crt"
+testnodekey="/.ci/certs/testnode.key"
+cacrt="/.ci/certs/ca.crt"
+
+elasticsearch_image="elasticsearch"
+elasticsearch_url="https://elastic:changeme@${NODE_NAME}:9200"
+if [[ $TEST_SUITE != "xpack" ]]; then
+  elasticsearch_image="elasticsearch-oss"
+  elasticsearch_url="http://${NODE_NAME}:9200"
+fi
+
+ELASTICSEARCH_VERSION="${elasticsearch_image}:${ELASTICSEARCH_VERSION}" \
+  NODE_NAME="${NODE_NAME}" \
+  NETWORK_NAME="esnet" \
+  DETACH=true \
+  SSL_CERT="${repo}${testnodecrt}" \
+  SSL_KEY="${repo}${testnodekey}" \
+  SSL_CA="${repo}${cacrt}" \
+  bash .ci/run-elasticsearch.sh
+
+docker run \
+  --network=esnet \
+  --env "TEST_ES_SERVER=${elasticsearch_url}" \
+  --volume $repo:/usr/src/app \
+  --volume /usr/src/app/node_modules \
+  --name elasticsearch-js \
+  --rm \
+  elastic/elasticsearch-js \
+  npm run test:integration
+

.ci/test-matrix.yml

@@ -1,10 +1,14 @@
 ---
-ELASTICSEARCH_VERSION:
-- 6.4.0
+STACK_VERSION:
+  - 6.8.4
 
 NODE_JS_VERSION:
-- 10
-- 8
-- 6
+  - 12
+  - 10
+  - 8
+
+TEST_SUITE:
+  - oss
+  - xpack
 
 exclude: ~

.dockerignore

@@ -0,0 +1,5 @@
+node_modules
+npm-debug.log
+test/benchmarks
+elasticsearch
+.git

.eslintignore

@@ -1,5 +0,0 @@
-src/_*
-src/bower_es_js
-src/lib/apis
-docs
-bower_components

.eslintrc

@@ -1,41 +0,0 @@
----
-extends: "@spalger/personal/es6"
-
-env:
-  node: true
-
-rules:
-  comma-dangle: off
-  semi: off
-  func-names: off
-  no-var: off
-  vars-on-top: off
-  new-cap: off
-  global-require: off
-  no-param-reassign: off
-  padded-blocks: off
-  brace-style: off
-  consistent-return: off
-  default-case: off
-  dot-notation: off
-  eqeqeq: warn
-  max-len: off
-  no-cond-assign: off
-  no-console: off
-  no-else-return: off
-  no-empty: off
-  no-restricted-syntax: warn
-  no-shadow: warn
-  no-undef: warn
-  no-underscore-dangle: off
-  no-unused-expressions: error
-  no-unused-vars: error
-  no-use-before-define: off
-  object-shorthand: off
-  one-var: off
-  one-var-declaration-per-line: off
-  prefer-arrow-callback: off
-  prefer-rest-params: off
-  prefer-template: off
-  quote-props: off
-  yoda: off

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,10 @@
+## 👉 [Please follow one of these issue templates](https://github.com/elastic/elasticsearch-js/issues/new/choose) 👈
+
+#### You have already researched for similar issues?
+It's not uncommon that somebody already opened an issue or in the best case it's already fixed but not merged. That's the reason why you should [search](https://github.com/elastic/elasticsearch-js/issues) at first before submitting a new one.
+
+#### Are you sure this is an issue with @elastic/elasticsearch or are you just looking for some help?
+
+Issues should only be posted in this repository after you have been able to reproduce them and confirm that they are a bug or incorrect/missing information in the [docs](https://github.com/elastic/elasticsearch-js/docs).
+
+If you have a question related to Elasticsearch itself, please consider open a question on [discuss.elastic.co](https://discuss.elastic.co/).

.github/ISSUE_TEMPLATE/bug.md

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

.github/ISSUE_TEMPLATE/feature.md

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

.github/ISSUE_TEMPLATE/question.md

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

.github/ISSUE_TEMPLATE/regression.md

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

.github/ISSUE_TEMPLATE/security.md

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

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+<!--
+
+Hello there!
+
+Thank you for opening a pull request!
+Please remember to always tag the relative issue (if any) and give a brief explanation on what your changes are doing.
+
+If you are patching a security issue, please take a look at https://www.elastic.co/community/security
+
+Finally, please make sure you have signed the Contributor License Agreement
+We are not asking you to assign copyright to us, but to give us the right to distribute your code without restriction.
+We ask this of all contributors in order to assure our users of the origin and continuing existence of the code. You only need to sign the CLA once.
+https://www.elastic.co/contributor-agreement/
+
+Happy coding!
+
+-->

.github/stale.yml

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

.github/workflows/backport.yml

@@ -0,0 +1,16 @@
+name: Backport
+on:
+  pull_request:
+    types:
+      - closed
+      - labeled
+
+jobs:
+  backport:
+    runs-on: ubuntu-latest
+    name: Backport
+    steps:
+      - name: Backport
+        uses: tibdex/backport@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/nodejs.yml

@@ -0,0 +1,120 @@
+name: Node CI
+
+on: [push]
+
+jobs:
+  test:
+    name: Test
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 13.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
+
+    - name: Behavior test
+      run: |
+        npm run test:behavior
+
+    - name: Type Definitions
+      run: |
+        npm run test:types
+
+  test-node-v8:
+    name: Test
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        node-version: [8.x]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - name: Install
+      run: |
+        npm install
+
+    - name: Test
+      run: |
+        npm run test:unit -- --node-arg=--harmony-async-iteration
+
+  code-coverage:
+    name: Code coverage
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [12.x]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - name: Install
+      run: |
+        npm install
+
+    - name: Code coverage
+      run: |
+        npm run test:coverage
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v1
+      with:
+        file: ./coverage.lcov
+        fail_ci_if_error: true
+
+  license:
+    name: License check
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [12.x]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+
+    - name: Install
+      run: |
+        npm install
+
+    - name: License checker
+      run: |
+        npm run license-checker

.gitignore

@@ -1,25 +1,55 @@
-.DS_Store
-dist
-npm-debug.log
-node_modules
-scripts/scratch*
-test/integration/yaml_suite/log
-.aws-config.json
-.idea
-esvm
-.es-snapshot-repos
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# coverage output
+coverage.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+# mac files
+.DS_Store
+
+# vim swap files
+*.swp
 
-## generated files
-test/integration/yaml_suite/yaml_tests*.json
-test/integration/yaml_suite/index*.js
-src/_elasticsearch*
-src/bower*/
-junit-*.xml
-elasticsearch*.log
-sauce_connect.lo*
-coverage.html
-.snapshots
-html_docs
-/elasticsearch-*.tgz
-yarn.lock
 package-lock.json
+
+# elasticsearch repo or binary files
+elasticsearch*
+
+test/benchmarks/macro/fixtures/*
+
+*-junit.xml

.node-version

@@ -1 +0,0 @@
-8

.npmignore

@@ -1,37 +1,72 @@
-dist
-bower_components
-npm-debug.log
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# coverage output
+coverage.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
 node_modules
-scripts/scratch*
-test/integration/yaml_suite/log
-.aws-config.json
-.idea
-esvm
+jspm_packages
 
-## generated files
-test/integration/yaml_suite/yaml_tests*.json
-test/integration/yaml_suite/index*.js
-src/_elasticsearch*/
-src/bower*/
-junit-*.xml
-elasticsearch*.log
-sauce_connect.lo*
-coverage.html
-.snapshots
-html_docs
-/elasticsearch-*.tgz
-yarn.lock
+# Optional npm cache directory
+.npm
 
-## just in .npmignore
-.eslintrc
+# Optional REPL history
+.node_repl_history
+
+# mac files
+.DS_Store
+
+# vim swap files
+*.swp
+
+package-lock.json
+
+# elasticsearch repo or binary files
+elasticsearch*
+
+# Generated typings, we don't commit them
+# because we should copy them in the main .d.ts file
+api/generated.d.ts
+
+# Ignore doc folder
+docs
+
+# Ignore test folder
+test
+
+# Ignore scripts folder
+scripts
+
+# ci configuration
+.ci
 .travis.yml
-CHANGELOG.md
+certs
+.github
+CODE_OF_CONDUCT.md
 CONTRIBUTING.md
-docs/
-grunt/
-Gruntfile.js
-scripts/
-test/
-webpack_config/
-.eslintignore
-.node-version

CHANGELOG.md

@@ -1 +0,0 @@
-The changelog has moved to https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/changelog.html

CODE_OF_CONDUCT.md

@@ -0,0 +1,3 @@
+303 See Other
+
+Location: https://www.elastic.co/community/codeofconduct

CONTRIBUTING.md

@@ -1,116 +1,100 @@
-If you have a bugfix or new feature that you would like to contribute to elasticsearch.js please feel free to submit a pull request, or open an issue for discussion. If your change is adding new functionality, you should open an issue ***before*** writing any code.
+# Contributing to the Elasticsearch Node.js client
 
-The process for contributing to any of the Elasticsearch repositories is similar.
+The Elasticsearch Node.js client is open source and we love to receive contributions from our community — you!
 
-### 1. Lint your codes
+There are many ways to contribute,
+from writing tutorials or blog posts,
+improving the documentation,
+submitting bug reports and feature requests or writing code.
 
-While developing, be sure to run eslint on the files you modify.
+## Repository structure
+The `master` branch is considered unstable, and it's compatible with Elasticsearch master. Unless you are patching an issue, new features should always be sent to the `master` branch, in case of a bugfix, it depends if the bug affects all the release lines.<br/>
+There is a branch for every supported release line, such as `7.x` or `6.x`. We release bugfixes as soon as possible, while minor and major releases are published at the same time of the Elastic Stack.
 
-### 2. Write tests
+Usually for every release line there will be a *published* version and a *next* version. Eg: the `7.x` branch contains the version published on npm, and bugfixes should be sent there, while `7.2` *(assuming that 7.1.x is released)* contains the next version, and new features should be sent there.
 
-Please write test cases to exercise your changes.
+## Code contributions
 
-### 3. When you are ready, run the test suite
+If you have a bugfix or new feature that you would like to contribute,
+please find or open an issue about it first.
+Talk about what you would like to do.
+It may be that somebody is already working on it,
+or that there are particular issues that you should know about before implementing the change.
 
-1. Install dev dependencies.
+Note that we strictly follow the [Elastic EOL schedule](https://www.elastic.co/support/eol).
 
-  ```sh
-  npm install
-  ```
+### Submitting your changes
 
-2. Install Grunt.
+Generally, we require that you test any code you are adding or modifying.
+Once your changes are ready to submit for review:
 
-  ```sh
-  npm install -g grunt-cli
-  ```
+1. Test your changes
 
-3. Run the tests. Testing the code will lint the project, run the unit tests, install local versions of elasticsearch, and run the integration tests using those installations.
+    Run the test suite to make sure that nothing is broken.
+    Usually run `npm test` is enough, our CI will take care of running the integration test. If you want to run the integration test yourself, see the *Testing* section below.
 
-  ```sh
-  grunt test
-  ```
+2. Submit a pull request
 
-  Or to skip the integration tests:
+    Push your local changes to your forked copy of the repository and [submit a pull request](https://help.github.com/articles/using-pull-requests).
+    In the pull request,
+    choose a title which sums up the changes that you have made,
+    and in the body provide more details about what your changes do.
+    Also mention the number of the issue where discussion has taken place,
+    eg "Closes #123".
 
-  ```sh
-  grunt unit_test
-  ```
-4. Optionally, run the browser tests. While this step is automated and simple, it can take several minutes for the tests to complete. Unless you are making changes to browser specific portions of the code you can probably let Travis run the browser tests for you.
+3. Sign the Contributor License Agreement
 
-  Quick Option: Run them locally in your browser
-  ```sh
-  grunt browser_clients:build
-  node ./test/utils/server
-  # open http://127.0.0.1:8000/unit.html
-  # open http://127.0.0.1:8000/builds.html
-  ```
+    Please make sure you have signed our [Contributor License Agreement](https://www.elastic.co/contributor-agreement/).
+    We are not asking you to assign copyright to us,
+    but to give us the right to distribute your code without restriction.
+    We ask this of all contributors in order to assure our users of the origin and continuing existence of the code.
+    You only need to sign the CLA once.
 
-  Run them on Sauce Labs across several browsers, operating systems, and browser versions
-  ```sh
-  grunt browser_clients:test
-  ```
+4. Be patient
 
+    We might not be able to review your code as fast as we would like to,
+    but we'll do our best to dedicate it the attention it deserves.
+    Your effort is much appreciated!
 
-### 4. Submit a pull request
-
-Push your local changes a forked copy of the repository and submit a pull request. In the pull request, describe what your changes do and be sure to link to any conversations regarding this implementation, eg "Closes #123".
-
-### 5. Sign the CLA
-
-Please make sure you have signed the [Contributor License Agreement](https://www.elastic.co/contributor-agreement/). We are not asking you to assign copyright to us, but to give us the right to distribute your code without restriction. We ask this of all contributors in order to assure our users of the origin and continuing existence of the code. You only need to sign the CLA once.
-
-### 6. Grab a beer
-
-There will probably be discussion about the pull request and we will work with you if any changes are needed.
-
-### 7. Know that we greatly appreciate your help!! :D
-
-## Generate
-
-To automatically regenerate elasticsearch-js from elasticsearch master, run the following command:
+### Code generation
 
+The entire content of the API folder is generated as well as the `docs/reference.asciidoc` file.<br/>
+If you want to run the code generation you should run the following command:
 ```sh
-npm run generate
+node scripts/generate --tag <tag name>
+# or
+node scripts/generate --branch <branch name>
 ```
+Then you should copy the content of `api/generated.d.ts` into the `index.d.ts` file *(automate this step would be a nice pr!)*.
 
-## Release
+### Testing
+There are different test scripts, usually during development you only need to run `npm test`, but if you want you can run just a part of the suite, following you will find all the testing scripts and what they do.
 
-Before you attempt to release a new version, make sure you have AWS credentials in the root of this project in the following format:
+| Script | Description |
+|---|---|
+| `npm run test:unit` | Runs the content of the `test/unit` folder. |
+| `npm run test:behavior` | Runs the content of the `test/behavior` folder. |
+| `npm run test:types` | Runs the content of the `test/types` folder. |
+| `npm run test:unit -- --cov --coverage-report=html` | Runs the content of the `test/unit` folder and calculates the code coverage. |
+| `npm run test:integration` | Runs the integration test runner.<br/>*Note: it requires a living instance of Elasticsearch.* |
+| `npm run lint` | Run the [linter](https://standardjs.com/). |
+| `npm run lint:fix` | Fixes the lint errors. |
+| `npm test` | Runs lint, unit, behavior, and types test. |
 
-```json
-{
-  "key": "YOUR_AWS_ACCESS_KEY_ID",
-  "secret": "YOUR_AWS_SECRET_ACCESS_KEY"
-}
-```
+#### Integration test
+The integration test are generated on the fly by the runner you will find inside `test/integration`, once you execute it, it will clone the Elasticsearch repository and checkout the correct version to grab the [OSS yaml files](https://github.com/elastic/elasticsearch/tree/master/rest-api-spec/src/main/resources/rest-api-spec/test) and the [Elastic licensed yaml files](https://github.com/elastic/elasticsearch/tree/master/x-pack/plugin/src/test/resources/rest-api-spec/test) that will be used for generating the test.
 
-Also, make sure you have been added as a contributor on npm for both [elasticsearch](https://www.npmjs.com/package/elasticsearch) and [elasticsearch-browser](https://www.npmjs.com/package/elasticsearch-browser).
+Usually this step is executed by CI since it takes some time, but you can easily run this yourself! Just follow this steps:
+1. Boot an Elasticsearch instance, you can do that by running `./scripts/es-docker.sh` or `./scripts/es-docker-platinum.sh`, the first one will work only with the OSS APIs, while the second will work also with the Elastic licensed APIs;
+1. If you are running the OSS test, you should use `npm run test:integration`, otherwise use `TEST_ES_SERVER=https://elastic:changeme@localhost:9200 npm run test:integration`. You can also pass a `-b` parameter if you want the test to bail out at the first failure: `npm run test:integration -- -b`;
+1. Grab a coffee, it will take some time ;)
 
-### 1. Bump the package version
+### Releasing
 
-```sh
-grunt version:12.0.0-rc4
-```
+If you have access to make releases, the process is as follows:
 
-After bumping the version, commit and push the changed files.
-
-### 2. Publish to npm and tag as needed
-
-```sh
-npm publish [--tag prerelease]
-```
-
-### 3. Release the new builds
-
-```sh
-grunt browser_clients:release
-```
-
-If this is a prerelease, you will need to modify the `elasticsearch-browser` npm tags
-
-```sh
-npm dist-tag add elasticsearch-browser@11.0.1 latest
-npm dist-tag add elasticsearch-browser@12.0.0-rc4 prerelease
-```
-
-Voila! You're all finished.
+1. Update the version in `package.json` according to the scale of the change. (major, minor or patch)
+1. Commit changes with message `Bumped vx.y.z` where `x.y.z` is the version in `package.json`
+1. Create a release via the GitHub UI.
+1. Wait for CI to finish running the test.
+1. Publish to npm with `npm publish` *(see [publish](https://docs.npmjs.com/cli/publish) and [dist-tag](https://docs.npmjs.com/cli/dist-tag) docs)*

Gruntfile.js

@@ -1,21 +0,0 @@
-module.exports = function (grunt) {
-  // load plugins
-  require('load-grunt-config')(grunt, {
-    configPath: __dirname + '/grunt/config',
-    init: true,
-    config: {
-      distDir: __dirname + '/dist',
-      bowerSubmodule: __dirname + '/src/bower_es_js',
-      meta: {
-        banner: '/*! <%= package.name %> - v<%= package.version %> - ' +
-          '<%= grunt.template.today("yyyy-mm-dd") %>\n' +
-          '<%= package.homepage ? " * " + package.homepage + "\\n" : "" %>' +
-          ' * Copyright (c) <%= grunt.template.today("yyyy") %> <%= package.author.company %>;' +
-          ' Licensed <%= package.license %> */\n'
-      }
-    }
-  });
-
-  // load task definitions
-  grunt.loadTasks('grunt');
-};

LICENSE

@@ -1,13 +1,202 @@
-Copyright 2013 Elasticsearch BV
 
-Licensed 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
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
 
-    http://www.apache.org/licenses/LICENSE-2.0
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
-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.
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
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+   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.

README.md

@@ -1,120 +1,196 @@
-# elasticsearch.js 15.4.1
+<img align="right" width="auto" height="auto" src="https://www.elastic.co/static-res/images/elastic-logo-200.png">
 
-The official low-level Elasticsearch client for Node.js and the browser.
+# Elasticsearch Node.js client
 
-[![Coverage Status](http://img.shields.io/coveralls/elastic/elasticsearch-js/master.svg?style=flat-square)](https://coveralls.io/r/elastic/elasticsearch-js?branch=master)
-[![Dependencies up to date](http://img.shields.io/david/elastic/elasticsearch-js.svg?style=flat-square)](https://david-dm.org/elastic/elasticsearch-js)
+[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](http://standardjs.com/)  [![Build Status](https://clients-ci.elastic.co/buildStatus/icon?job=elastic%2Belasticsearch-js%2Bmaster)](https://clients-ci.elastic.co/view/Javascript/job/elastic+elasticsearch-js+master/)  [![codecov](https://codecov.io/gh/elastic/elasticsearch-js/branch/master/graph/badge.svg)](https://codecov.io/gh/elastic/elasticsearch-js)  [![NPM downloads](https://img.shields.io/npm/dm/@elastic/elasticsearch.svg?style=flat)](https://www.npmjs.com/package/@elastic/elasticsearch)
+
+The official Node.js client for Elasticsearch.
+
+---
+
+**Note:** In the past months we have worked on the new Elasticsearch Node.js client and you can use it by following the instructions below. If you're going to use the legacy one or report an issue, however, please check out [elastic/elasticsearch-js-legacy](https://github.com/elastic/elasticsearch-js-legacy).
+
+---
 
 ## Features
+- One-to-one mapping with REST API.
+- Generalized, pluggable architecture.
+- Configurable, automatic discovery of cluster nodes.
+- Persistent, Keep-Alive connections.
+- Load balancing across all available nodes.
+- Child client support.
+- TypeScript support out of the box.
 
- - One-to-one mapping with REST API and the other official clients
- - Generalized, pluggable architecture. See [Extending Core Components](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/extending_core_components.html)
- - Configurable, automatic discovery of cluster nodes
- - Persistent, Keep-Alive connections
- - Load balancing (with pluggable selection strategy) across all available nodes.
-
-## Use in Node.js
-
+## Install
 ```
-npm install elasticsearch
+npm install @elastic/elasticsearch
 ```
 
-[![NPM Stats](https://nodei.co/npm/elasticsearch.png?downloads=true)](https://npmjs.org/package/elasticsearch)
+### Compatibility
 
-## Use in the Browser
+The minimum supported version of Node.js is `v8`.
 
-Check out the [Browser Builds](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/browser-builds.html) doc page for help downloading and setting up the client for use in the browser.
+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.
 
-## Docs
- - [Quick Start](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/quick-start.html)
- - [Browser Builds](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/browser-builds.html)
- - [API](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/api-reference.html)
- - [Configuration](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/configuration.html)
- - [Development/Contributing](https://github.com/elastic/elasticsearch-js/blob/master/CONTRIBUTING.md)
- - [Extending Core Components](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/extending_core_components.html)
- - [Logging](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/logging.html)
+| Elasticsearch Version | Client Version |
+| --------------------- |----------------|
+| `master`              | `master`       |
+| `7.x`                 | `7.x`          |
+| `6.x`                 | `6.x`          |
+| `5.x`                 | `5.x`          |
 
+To install a specific major of the client, run the following command:
+```
+npm install @elastic/elasticsearch@<major>
+```
 
-## Questions?
-You can probably find help in [#kibana](https://kiwiirc.com/client/irc.freenode.net/?#kibana) on freenode.
+#### 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.
 
-## Supported Elasticsearch Versions
+## Documentation
 
-Elasticsearch.js provides support for, and is regularly tested against, Elasticsearch releases 0.90.12 and greater. We also test against the latest changes in several branches in the Elasticsearch repository. To tell the client which version of Elastisearch you are using, and therefore the API it should provide, set the `apiVersion` config param. [More info](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/configuration.html#config-options)
+- [Introduction](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/introduction.html)
+- [Usage](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-usage.html)
+- [Client configuration](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/client-configuration.html)
+- [API reference](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/api-reference.html)
+- [Breaking changes coming from the old client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/breaking-changes.html)
+- [Authentication](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/auth-reference.html)
+- [Observability](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/observability.html)
+- [Creating a child client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/child-client.html)
+- [Extend the client](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/extend-client.html)
+- [Typescript support](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/typescript.html)
+- [Examples](https://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/examples.html)
 
-## Examples
+## Quick start
 
-Create a client instance
+First of all, require the client and initialize it:
 ```js
-var elasticsearch = require('elasticsearch');
-var client = new elasticsearch.Client({
-  host: 'localhost:9200',
-  log: 'trace'
-});
+const { Client } = require('@elastic/elasticsearch')
+const client = new Client({ node: 'http://localhost:9200' })
 ```
 
-Send a HEAD request to `/` and allow up to 1 second for it to complete.
+You can use both the callback-style API and the promise-style API, both behave the same way.
 ```js
-client.ping({
-  // ping usually has a 3000ms timeout
-  requestTimeout: 1000
-}, function (error) {
-  if (error) {
-    console.trace('elasticsearch cluster is down!');
-  } else {
-    console.log('All is well');
-  }
-});
-```
-
-Skip the callback to get a promise back
-```js
-try {
-  const response = await client.search({
-    q: 'pants'
-  });
-  console.log(response.hits.hits)
-} catch (error) {
-  console.trace(error.message)
-}
-```
-
-Find tweets that have "elasticsearch" in their body field
-```js
-const response = await client.search({
-  index: 'twitter',
-  type: 'tweets',
-  body: {
-    query: {
-      match: {
-        body: 'elasticsearch'
-      }
-    }
-  }
+// promise API
+const result = await client.search({
+  index: 'my-index',
+  body: { foo: 'bar' }
 })
 
-for (const tweet of response.hits.hits) {
-  console.log('tweet:', tweet);
+// 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
 }
 ```
 
-More examples and detailed information about each method are available [here](http://www.elastic.co/guide/en/elasticsearch/client/javascript-api/current/index.html)
+Let's see a complete example!
+```js
+'use strict'
+
+const { Client } = require('@elastic/elasticsearch')
+const client = new Client({ node: 'http://localhost:9200' })
+
+async function run () {
+  // Let's start by indexing some data
+  await client.index({
+    index: 'game-of-thrones',
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      character: 'Ned Stark',
+      quote: 'Winter is coming.'
+    }
+  })
+
+  await client.index({
+    index: 'game-of-thrones',
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      character: 'Daenerys Targaryen',
+      quote: 'I am the blood of the dragon.'
+    }
+  })
+
+  await client.index({
+    index: 'game-of-thrones',
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      character: 'Tyrion Lannister',
+      quote: 'A mind needs books like a sword needs a whetstone.'
+    }
+  })
+
+  // here we are forcing an index refresh, otherwise we will not
+  // get any result in the consequent search
+  await client.indices.refresh({ index: 'game-of-thrones' })
+
+  // Let's search!
+  const { body } = await client.search({
+    index: 'game-of-thrones',
+    // type: '_doc', // uncomment this line if you are using Elasticsearch ≤ 6
+    body: {
+      query: {
+        match: { quote: 'winter' }
+      }
+    }
+  })
+
+  console.log(body.hits.hits)
+}
+
+run().catch(console.log)
+```
+
+## Install multiple versions
+If you are using multiple versions of Elasticsearch, you need to use multiple versions of the client. In the past, install multiple versions of the same package was not possible, but with `npm v6.9`, you can do that via aliasing.
+
+The command you must run to install different version of the client is:
+```sh
+npm install <alias>@npm:@elastic/elasticsearch@<version>
+```
+So for example if you need to install `7.x` and `6.x`, you will run
+```sh
+npm install es6@npm:@elastic/elasticsearch@6
+npm install es7@npm:@elastic/elasticsearch@7
+```
+And your `package.json` will look like the following:
+```json
+"dependencies": {
+  "es6": "npm:@elastic/elasticsearch@^6.7.0",
+  "es7": "npm:@elastic/elasticsearch@^7.0.0"
+}
+```
+You will require the packages from your code by using the alias you have defined.
+```js
+const { Client: Client6 } = require('es6')
+const { Client: Client7 } = require('es7')
+
+const client6 = new Client6({ node: 'http://localhost:9200' })
+const client7 = new Client7({ node: 'http://localhost:9201' })
+
+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 master branch)*, you can use the following command:
+```sh
+npm install esmaster@github:elastic/elasticsearch-js
+```
 
 ## License
 
-This software is licensed under the Apache 2 license, quoted below.
-
-    Copyright (c) 2014 Elasticsearch <http://www.elasticsearch.org>
-
-    Licensed 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.
+This software is licensed under the [Apache 2 license](./LICENSE).

api/api/bulk.js

@@ -0,0 +1,127 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildBulk (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [bulk](http://www.elastic.co/guide/en/elasticsearch/reference/master/docs-bulk.html) request
+   *
+   * @param {string} index - Default index for items which don't provide one
+   * @param {string} type - Default document type for items which don't provide one
+   * @param {string} wait_for_active_shards - Sets the number of shard copies that must be active before proceeding with the bulk operation. Defaults to 1, meaning the primary shard only. Set to `all` for all shard copies, otherwise set to any non-negative value less than or equal to the total number of copies for the shard (number of replicas + 1)
+   * @param {enum} refresh - If `true` then refresh the effected shards to make this operation visible to search, if `wait_for` then wait for a refresh to make this operation visible to search, if `false` (the default) then do nothing with refreshes.
+   * @param {string} routing - Specific routing value
+   * @param {time} timeout - Explicit operation timeout
+   * @param {string} type - Default document type for items which don't provide one
+   * @param {list} fields - Default comma-separated list of fields to return in the response for updates, can be overridden on each sub-request
+   * @param {list} _source - True or false to return the _source field or not, or default list of fields to return, can be overridden on each sub-request
+   * @param {list} _source_excludes - Default list of fields to exclude from the returned _source field, can be overridden on each sub-request
+   * @param {list} _source_includes - Default list of fields to extract and return from the _source field, can be overridden on each sub-request
+   * @param {string} pipeline - The pipeline id to preprocess incoming documents with
+   * @param {object} body - The operation definition and data (action-data pairs), separated by newlines
+   */
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards',
+    'refresh',
+    'routing',
+    'timeout',
+    'type',
+    'fields',
+    '_source',
+    '_source_excludes',
+    '_source_exclude',
+    '_source_includes',
+    '_source_include',
+    'pipeline',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards',
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function bulk (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // check required url components
+    if (params['type'] != null && (params['index'] == null)) {
+      const err = new ConfigurationError('Missing required parameter of the url: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, type, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null && (type) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_bulk'
+    } else if ((index) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + '_bulk'
+    } else {
+      path = '/' + '_bulk'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      bulkBody: body,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildBulk

api/api/cat.aliases.js

@@ -0,0 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatAliases (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.aliases](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-alias.html) request
+   *
+   * @param {list} name - A comma-separated list of alias names to return
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catAliases (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      path = '/' + '_cat' + '/' + 'aliases' + '/' + encodeURIComponent(name)
+    } else {
+      path = '/' + '_cat' + '/' + 'aliases'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatAliases

api/api/cat.allocation.js

@@ -0,0 +1,107 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatAllocation (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.allocation](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-allocation.html) request
+   *
+   * @param {list} node_id - A comma-separated list of node IDs or names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catAllocation (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, nodeId, node_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((node_id || nodeId) != null) {
+      path = '/' + '_cat' + '/' + 'allocation' + '/' + encodeURIComponent(node_id || nodeId)
+    } else {
+      path = '/' + '_cat' + '/' + 'allocation'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatAllocation

api/api/cat.count.js

@@ -0,0 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatCount (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.count](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-count.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catCount (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'count' + '/' + encodeURIComponent(index)
+    } else {
+      path = '/' + '_cat' + '/' + 'count'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatCount

api/api/cat.fielddata.js

@@ -0,0 +1,109 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatFielddata (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.fielddata](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-fielddata.html) request
+   *
+   * @param {list} fields - A comma-separated list of fields to return the fielddata size
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   * @param {list} fields - A comma-separated list of fields to return in the output
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'fields',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catFielddata (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, fields, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((fields) != null) {
+      path = '/' + '_cat' + '/' + 'fielddata' + '/' + encodeURIComponent(fields)
+    } else {
+      path = '/' + '_cat' + '/' + 'fielddata'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatFielddata

api/api/cat.health.js

@@ -0,0 +1,102 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatHealth (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.health](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-health.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} ts - Set to false to disable timestamping
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'ts',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catHealth (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'health'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatHealth

api/api/cat.help.js

@@ -0,0 +1,89 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatHelp (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.help](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat.html) request
+   *
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   */
+
+  const acceptedQuerystring = [
+    'help',
+    's',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catHelp (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatHelp

api/api/cat.indices.js

@@ -0,0 +1,111 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatIndices (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.indices](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-indices.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {enum} health - A health status ("green", "yellow", or "red" to filter only indices matching the specified health status
+   * @param {boolean} help - Return help information
+   * @param {boolean} pri - Set to true to return stats only for primary shards
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'health',
+    'help',
+    'pri',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catIndices (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'indices' + '/' + encodeURIComponent(index)
+    } else {
+      path = '/' + '_cat' + '/' + 'indices'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatIndices

api/api/cat.master.js

@@ -0,0 +1,100 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatMaster (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.master](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-master.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catMaster (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'master'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatMaster

api/api/cat.nodeattrs.js

@@ -0,0 +1,100 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatNodeattrs (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.nodeattrs](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-nodeattrs.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catNodeattrs (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'nodeattrs'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatNodeattrs

api/api/cat.nodes.js

@@ -0,0 +1,103 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatNodes (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.nodes](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-nodes.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} full_id - Return the full node ID instead of the shortened version (default: false)
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'full_id',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    fullId: 'full_id',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catNodes (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'nodes'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatNodes

api/api/cat.pending_tasks.js

@@ -0,0 +1,100 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatPendingTasks (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.pending_tasks](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-pending-tasks.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catPendingTasks (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'pending_tasks'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatPendingTasks

api/api/cat.plugins.js

@@ -0,0 +1,100 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatPlugins (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.plugins](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-plugins.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catPlugins (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'plugins'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatPlugins

api/api/cat.recovery.js

@@ -0,0 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatRecovery (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.recovery](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-recovery.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catRecovery (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'recovery' + '/' + encodeURIComponent(index)
+    } else {
+      path = '/' + '_cat' + '/' + 'recovery'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatRecovery

api/api/cat.repositories.js

@@ -0,0 +1,100 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatRepositories (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.repositories](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-repositories.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catRepositories (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'repositories'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatRepositories

api/api/cat.segments.js

@@ -0,0 +1,102 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatSegments (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.segments](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-segments.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catSegments (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'segments' + '/' + encodeURIComponent(index)
+    } else {
+      path = '/' + '_cat' + '/' + 'segments'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatSegments

api/api/cat.shards.js

@@ -0,0 +1,107 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatShards (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.shards](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-shards.html) request
+   *
+   * @param {list} index - A comma-separated list of index names to limit the returned information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} bytes - The unit in which to display byte values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'bytes',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catShards (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cat' + '/' + 'shards' + '/' + encodeURIComponent(index)
+    } else {
+      path = '/' + '_cat' + '/' + 'shards'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatShards

api/api/cat.snapshots.js

@@ -0,0 +1,106 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatSnapshots (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.snapshots](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-snapshots.html) request
+   *
+   * @param {list} repository - Name of repository from which to fetch the snapshot information
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} ignore_unavailable - Set to true to ignore unavailable snapshots
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'ignore_unavailable',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    ignoreUnavailable: 'ignore_unavailable',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catSnapshots (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, repository, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((repository) != null) {
+      path = '/' + '_cat' + '/' + 'snapshots' + '/' + encodeURIComponent(repository)
+    } else {
+      path = '/' + '_cat' + '/' + 'snapshots'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatSnapshots

api/api/cat.tasks.js

@@ -0,0 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatTasks (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.tasks](http://www.elastic.co/guide/en/elasticsearch/reference/master/tasks.html) request
+   *
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {list} node_id - A comma-separated list of node IDs or names to limit the returned information; use `_local` to return information from the node you're connecting to, leave empty to get information from all nodes
+   * @param {list} actions - A comma-separated list of actions that should be returned. Leave empty to return all.
+   * @param {boolean} detailed - Return detailed task information (default: false)
+   * @param {number} parent_task - Return tasks with specified parent task id. Set to -1 to return all.
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'node_id',
+    'actions',
+    'detailed',
+    'parent_task',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    nodeId: 'node_id',
+    parentTask: 'parent_task',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catTasks (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cat' + '/' + 'tasks'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatTasks

api/api/cat.templates.js

@@ -0,0 +1,105 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatTemplates (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.templates](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-templates.html) request
+   *
+   * @param {string} name - A pattern that returned template names must match
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catTemplates (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      path = '/' + '_cat' + '/' + 'templates' + '/' + encodeURIComponent(name)
+    } else {
+      path = '/' + '_cat' + '/' + 'templates'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatTemplates

api/api/cat.thread_pool.js

@@ -0,0 +1,107 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCatThreadPool (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cat.thread_pool](http://www.elastic.co/guide/en/elasticsearch/reference/master/cat-thread-pool.html) request
+   *
+   * @param {list} thread_pool_patterns - A comma-separated list of regular-expressions to filter the thread pools in the output
+   * @param {string} format - a short version of the Accept header, e.g. json, yaml
+   * @param {enum} size - The multiplier in which to display values
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {list} h - Comma-separated list of column names to display
+   * @param {boolean} help - Return help information
+   * @param {list} s - Comma-separated list of column names or column aliases to sort by
+   * @param {boolean} v - Verbose mode. Display column headers
+   */
+
+  const acceptedQuerystring = [
+    'format',
+    'size',
+    'local',
+    'master_timeout',
+    'h',
+    'help',
+    's',
+    'v',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function catThreadPool (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, threadPoolPatterns, thread_pool_patterns, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((thread_pool_patterns || threadPoolPatterns) != null) {
+      path = '/' + '_cat' + '/' + 'thread_pool' + '/' + encodeURIComponent(thread_pool_patterns || threadPoolPatterns)
+    } else {
+      path = '/' + '_cat' + '/' + 'thread_pool'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCatThreadPool

api/api/ccr.delete_auto_follow_pattern.js

@@ -0,0 +1,81 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrDeleteAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.delete_auto_follow_pattern](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-delete-auto-follow-pattern.html) request
+   *
+   * @param {string} name - The name of the auto follow pattern.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrDeleteAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'DELETE'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrDeleteAutoFollowPattern

api/api/ccr.follow.js

@@ -0,0 +1,87 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrFollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.follow](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-put-follow.html) request
+   *
+   * @param {string} index - The name of the follower index
+   * @param {string} wait_for_active_shards - Sets the number of shard copies that must be active before returning. Defaults to 0. Set to `all` for all shard copies, otherwise set to any non-negative value less than or equal to the total number of copies for the shard (number of replicas + 1)
+   * @param {object} body - The name of the leader index and other optional ccr related parameters
+   */
+
+  const acceptedQuerystring = [
+    'wait_for_active_shards'
+  ]
+
+  const snakeCase = {
+    waitForActiveShards: 'wait_for_active_shards'
+  }
+
+  return function ccrFollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'PUT'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'follow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrFollow

api/api/ccr.follow_info.js

@@ -0,0 +1,75 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrFollowInfo (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.follow_info](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-follow-info.html) request
+   *
+   * @param {list} index - A comma-separated list of index patterns; use `_all` to perform the operation on all indices
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrFollowInfo (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'info'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrFollowInfo

api/api/ccr.follow_stats.js

@@ -0,0 +1,75 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrFollowStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.follow_stats](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-follow-stats.html) request
+   *
+   * @param {list} index - A comma-separated list of index patterns; use `_all` to perform the operation on all indices
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrFollowStats (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'stats'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrFollowStats

api/api/ccr.forget_follower.js

@@ -0,0 +1,86 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrForgetFollower (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.forget_follower](http://www.elastic.co/guide/en/elasticsearch/reference/current) request
+   *
+   * @param {string} index - the name of the leader index for which specified follower retention leases should be removed
+   * @param {object} body - the name and UUID of the follower index, the name of the cluster containing the follower index, and the alias from the perspective of that cluster for the remote cluster containing the leader index
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrForgetFollower (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'forget_follower'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrForgetFollower

api/api/ccr.get_auto_follow_pattern.js

@@ -0,0 +1,79 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrGetAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.get_auto_follow_pattern](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-auto-follow-pattern.html) request
+   *
+   * @param {string} name - The name of the auto follow pattern.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrGetAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((name) != null) {
+      path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
+    } else {
+      path = '/' + '_ccr' + '/' + 'auto_follow'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrGetAutoFollowPattern

api/api/ccr.pause_follow.js

@@ -0,0 +1,81 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrPauseFollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.pause_follow](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-pause-follow.html) request
+   *
+   * @param {string} index - The name of the follower index that should pause following its leader index.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrPauseFollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'pause_follow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrPauseFollow

api/api/ccr.put_auto_follow_pattern.js

@@ -0,0 +1,86 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrPutAutoFollowPattern (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.put_auto_follow_pattern](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-put-auto-follow-pattern.html) request
+   *
+   * @param {string} name - The name of the auto follow pattern.
+   * @param {object} body - The specification of the auto follow pattern
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrPutAutoFollowPattern (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['name'] == null) {
+      const err = new ConfigurationError('Missing required parameter: name')
+      return handleError(err, callback)
+    }
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, name, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'PUT'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_ccr' + '/' + 'auto_follow' + '/' + encodeURIComponent(name)
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrPutAutoFollowPattern

api/api/ccr.resume_follow.js

@@ -0,0 +1,82 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrResumeFollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.resume_follow](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-post-resume-follow.html) request
+   *
+   * @param {string} index - The name of the follow index to resume following.
+   * @param {object} body - The name of the leader index and other optional ccr related parameters
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrResumeFollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'resume_follow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrResumeFollow

api/api/ccr.stats.js

@@ -0,0 +1,74 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrStats (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.stats](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-stats.html) request
+   *
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrStats (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_ccr' + '/' + 'stats'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrStats

api/api/ccr.unfollow.js

@@ -0,0 +1,81 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildCcrUnfollow (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [ccr.unfollow](http://www.elastic.co/guide/en/elasticsearch/reference/current) request
+   *
+   * @param {string} index - The name of the follower index that should be turned into a regular index.
+   */
+
+  const acceptedQuerystring = [
+
+  ]
+
+  const snakeCase = {
+
+  }
+
+  return function ccrUnfollow (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['index'] == null) {
+      const err = new ConfigurationError('Missing required parameter: index')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + '_ccr' + '/' + 'unfollow'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildCcrUnfollow

api/api/clear_scroll.js

@@ -0,0 +1,85 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClearScroll (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [clear_scroll](http://www.elastic.co/guide/en/elasticsearch/reference/master/search-request-scroll.html) request
+   *
+   * @param {list} scroll_id - A comma-separated list of scroll IDs to clear
+   * @param {object} body - A comma-separated list of scroll IDs to clear if none was specified via the scroll_id parameter
+   */
+
+  const acceptedQuerystring = [
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clearScroll (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, scrollId, scroll_id, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'DELETE'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((scroll_id || scrollId) != null) {
+      path = '/' + '_search' + '/' + 'scroll' + '/' + encodeURIComponent(scroll_id || scrollId)
+    } else {
+      path = '/' + '_search' + '/' + 'scroll'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClearScroll

api/api/cluster.allocation_explain.js

@@ -0,0 +1,86 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterAllocationExplain (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.allocation_explain](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-allocation-explain.html) request
+   *
+   * @param {boolean} include_yes_decisions - Return 'YES' decisions in explanation (default: false)
+   * @param {boolean} include_disk_info - Return information about disk usage and shard sizes (default: false)
+   * @param {object} body - The index, shard, and primary flag to explain. Empty means 'explain the first unassigned shard'
+   */
+
+  const acceptedQuerystring = [
+    'include_yes_decisions',
+    'include_disk_info',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    includeYesDecisions: 'include_yes_decisions',
+    includeDiskInfo: 'include_disk_info',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterAllocationExplain (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = body == null ? 'GET' : 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cluster' + '/' + 'allocation' + '/' + 'explain'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterAllocationExplain

api/api/cluster.get_settings.js

@@ -0,0 +1,96 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterGetSettings (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.get_settings](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-update-settings.html) request
+   *
+   * @param {boolean} flat_settings - Return settings in flat format (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {boolean} include_defaults - Whether to return all default clusters setting.
+   */
+
+  const acceptedQuerystring = [
+    'flat_settings',
+    'master_timeout',
+    'timeout',
+    'include_defaults',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    flatSettings: 'flat_settings',
+    masterTimeout: 'master_timeout',
+    includeDefaults: 'include_defaults',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterGetSettings (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cluster' + '/' + 'settings'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterGetSettings

api/api/cluster.health.js

@@ -0,0 +1,117 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterHealth (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.health](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-health.html) request
+   *
+   * @param {list} index - Limit the information returned to a specific index
+   * @param {enum} level - Specify the level of detail for returned information
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {string} wait_for_active_shards - Wait until the specified number of shards is active
+   * @param {string} wait_for_nodes - Wait until the specified number of nodes is available
+   * @param {enum} wait_for_events - Wait until all currently queued events with the given priority are processed
+   * @param {boolean} wait_for_no_relocating_shards - Whether to wait until there are no relocating shards in the cluster
+   * @param {boolean} wait_for_no_initializing_shards - Whether to wait until there are no initializing shards in the cluster
+   * @param {enum} wait_for_status - Wait until cluster is in a specific state
+   */
+
+  const acceptedQuerystring = [
+    'level',
+    'local',
+    'master_timeout',
+    'timeout',
+    'wait_for_active_shards',
+    'wait_for_nodes',
+    'wait_for_events',
+    'wait_for_no_relocating_shards',
+    'wait_for_no_initializing_shards',
+    'wait_for_status',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    waitForActiveShards: 'wait_for_active_shards',
+    waitForNodes: 'wait_for_nodes',
+    waitForEvents: 'wait_for_events',
+    waitForNoRelocatingShards: 'wait_for_no_relocating_shards',
+    waitForNoInitializingShards: 'wait_for_no_initializing_shards',
+    waitForStatus: 'wait_for_status',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterHealth (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + '_cluster' + '/' + 'health' + '/' + encodeURIComponent(index)
+    } else {
+      path = '/' + '_cluster' + '/' + 'health'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterHealth

api/api/cluster.pending_tasks.js

@@ -0,0 +1,90 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterPendingTasks (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.pending_tasks](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-pending.html) request
+   *
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Specify timeout for connection to master
+   */
+
+  const acceptedQuerystring = [
+    'local',
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterPendingTasks (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cluster' + '/' + 'pending_tasks'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterPendingTasks

api/api/cluster.put_settings.js

@@ -0,0 +1,94 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterPutSettings (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.put_settings](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-update-settings.html) request
+   *
+   * @param {boolean} flat_settings - Return settings in flat format (default: false)
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {object} body - The settings to be updated. Can be either `transient` or `persistent` (survives cluster restart).
+   */
+
+  const acceptedQuerystring = [
+    'flat_settings',
+    'master_timeout',
+    'timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    flatSettings: 'flat_settings',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterPutSettings (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params['body'] == null) {
+      const err = new ConfigurationError('Missing required parameter: body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'PUT'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cluster' + '/' + 'settings'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterPutSettings

api/api/cluster.remote_info.js

@@ -0,0 +1,85 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterRemoteInfo (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.remote_info](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-remote-info.html) request
+   *
+   */
+
+  const acceptedQuerystring = [
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterRemoteInfo (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_remote' + '/' + 'info'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterRemoteInfo

api/api/cluster.reroute.js

@@ -0,0 +1,95 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterReroute (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.reroute](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-reroute.html) request
+   *
+   * @param {boolean} dry_run - Simulate the operation only and return the resulting state
+   * @param {boolean} explain - Return an explanation of why the commands can or cannot be executed
+   * @param {boolean} retry_failed - Retries allocation of shards that are blocked due to too many subsequent allocation failures
+   * @param {list} metric - Limit the information returned to the specified metrics. Defaults to all but metadata
+   * @param {time} master_timeout - Explicit operation timeout for connection to master node
+   * @param {time} timeout - Explicit operation timeout
+   * @param {object} body - The definition of `commands` to perform (`move`, `cancel`, `allocate`)
+   */
+
+  const acceptedQuerystring = [
+    'dry_run',
+    'explain',
+    'retry_failed',
+    'metric',
+    'master_timeout',
+    'timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    dryRun: 'dry_run',
+    retryFailed: 'retry_failed',
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterReroute (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + '_cluster' + '/' + 'reroute'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterReroute

api/api/cluster.state.js

@@ -0,0 +1,122 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildClusterState (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [cluster.state](http://www.elastic.co/guide/en/elasticsearch/reference/master/cluster-state.html) request
+   *
+   * @param {list} index - A comma-separated list of index names; use `_all` or empty string to perform the operation on all indices
+   * @param {list} metric - Limit the information returned to the specified metrics
+   * @param {boolean} local - Return local information, do not retrieve the state from master node (default: false)
+   * @param {time} master_timeout - Specify timeout for connection to master
+   * @param {boolean} flat_settings - Return settings in flat format (default: false)
+   * @param {number} wait_for_metadata_version - Wait for the metadata version to be equal or greater than the specified metadata version
+   * @param {time} wait_for_timeout - The maximum time to wait for wait_for_metadata_version before timing out
+   * @param {boolean} ignore_unavailable - Whether specified concrete indices should be ignored when unavailable (missing or closed)
+   * @param {boolean} allow_no_indices - Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)
+   * @param {enum} expand_wildcards - Whether to expand wildcard expression to concrete indices that are open, closed or both.
+   */
+
+  const acceptedQuerystring = [
+    'local',
+    'master_timeout',
+    'flat_settings',
+    'wait_for_metadata_version',
+    'wait_for_timeout',
+    'ignore_unavailable',
+    'allow_no_indices',
+    'expand_wildcards',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    flatSettings: 'flat_settings',
+    waitForMetadataVersion: 'wait_for_metadata_version',
+    waitForTimeout: 'wait_for_timeout',
+    ignoreUnavailable: 'ignore_unavailable',
+    allowNoIndices: 'allow_no_indices',
+    expandWildcards: 'expand_wildcards',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function clusterState (params, options, callback) {
+    options = options || {}
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
+    }
+    if (typeof params === 'function' || params == null) {
+      callback = params
+      params = {}
+      options = {}
+    }
+
+    // check required parameters
+    if (params.body != null) {
+      const err = new ConfigurationError('This API does not require a body')
+      return handleError(err, callback)
+    }
+
+    // check required url components
+    if (params['index'] != null && (params['metric'] == null)) {
+      const err = new ConfigurationError('Missing required parameter of the url: metric')
+      return handleError(err, callback)
+    }
+
+    // validate headers object
+    if (options.headers != null && typeof options.headers !== 'object') {
+      const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
+      return handleError(err, callback)
+    }
+
+    var warnings = []
+    var { method, body, index, metric, ...querystring } = params
+    querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
+
+    if (method == null) {
+      method = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((metric) != null && (index) != null) {
+      path = '/' + '_cluster' + '/' + 'state' + '/' + encodeURIComponent(metric) + '/' + encodeURIComponent(index)
+    } else if ((metric) != null) {
+      path = '/' + '_cluster' + '/' + 'state' + '/' + encodeURIComponent(metric)
+    } else {
+      path = '/' + '_cluster' + '/' + 'state'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildClusterState

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 +1,119 @@
+// 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 {string} parent - ID of the parent document
+   * @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',
+    'parent',
+    '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['type'] == null) {
+      const err = new ConfigurationError('Missing required parameter: type')
+      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 = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_create'
+
+    // 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/delete.js

@@ -0,0 +1,131 @@
+// 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 {string} parent - ID of parent document
+   * @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',
+    'parent',
+    '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['type'] == null) {
+      const err = new ConfigurationError('Missing required parameter: type')
+      return handleError(err, callback)
+    }
+    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['id'] != null && (params['type'] == null || params['index'] == null)) {
+      const err = new ConfigurationError('Missing required parameter of the url: type, index')
+      return handleError(err, callback)
+    } else 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, 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 = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + 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 +1,185 @@
+// 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 - Number of hits to return (default: 10)
+   * @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',
+    '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',
+    _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 +1,130 @@
+// 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 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} parent - The ID of the parent document
+   * @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',
+    'parent',
+    '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['type'] == null) {
+      const err = new ConfigurationError('Missing required parameter: type')
+      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 = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + 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

api/api/exists_source.js

@@ -0,0 +1,136 @@
+// 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 buildExistsSource (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [exists_source](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 {string} parent - The ID of the parent document
+   * @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 = [
+    'parent',
+    '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 = {
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    versionType: 'version_type',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function existsSource (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['type'] == null) {
+      const err = new ConfigurationError('Missing required parameter: type')
+      return handleError(err, callback)
+    }
+    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['id'] != null && (params['type'] == null || params['index'] == null)) {
+      const err = new ConfigurationError('Missing required parameter of the url: type, index')
+      return handleError(err, callback)
+    } else 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, 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 = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_source'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildExistsSource

api/api/explain.js

@@ -0,0 +1,132 @@
+// 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 buildExplain (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [explain](http://www.elastic.co/guide/en/elasticsearch/reference/master/search-explain.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 {boolean} analyze_wildcard - Specify whether wildcards and prefix queries in the query string query should be analyzed (default: false)
+   * @param {string} analyzer - The analyzer for the query string query
+   * @param {enum} default_operator - The default operator for query string query (AND or OR)
+   * @param {string} df - The default field for query string query (default: _all)
+   * @param {list} stored_fields - A comma-separated list of stored fields to return in the response
+   * @param {boolean} lenient - Specify whether format-based query failures (such as providing text to a numeric field) should be ignored
+   * @param {string} parent - The ID of the parent document
+   * @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 {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 {object} body - The query definition using the Query DSL
+   */
+
+  const acceptedQuerystring = [
+    'analyze_wildcard',
+    'analyzer',
+    'default_operator',
+    'df',
+    'stored_fields',
+    'lenient',
+    'parent',
+    'preference',
+    'q',
+    'routing',
+    '_source',
+    '_source_excludes',
+    '_source_exclude',
+    '_source_includes',
+    '_source_include',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    analyzeWildcard: 'analyze_wildcard',
+    defaultOperator: 'default_operator',
+    storedFields: 'stored_fields',
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function explain (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['type'] == null) {
+      const err = new ConfigurationError('Missing required parameter: type')
+      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 = body == null ? 'GET' : 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_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 = buildExplain

api/api/field_caps.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 buildFieldCaps (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [field_caps](http://www.elastic.co/guide/en/elasticsearch/reference/master/search-field-caps.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} fields - A comma-separated list of field names
+   * @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.
+   * @param {object} body - Field json objects containing an array of field names
+   */
+
+  const acceptedQuerystring = [
+    'fields',
+    'ignore_unavailable',
+    'allow_no_indices',
+    'expand_wildcards',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    ignoreUnavailable: 'ignore_unavailable',
+    allowNoIndices: 'allow_no_indices',
+    expandWildcards: 'expand_wildcards',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function fieldCaps (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 = body == null ? 'GET' : 'POST'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    if ((index) != null) {
+      path = '/' + encodeURIComponent(index) + '/' + '_field_caps'
+    } else {
+      path = '/' + '_field_caps'
+    }
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: body || '',
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildFieldCaps

api/api/get.js

@@ -0,0 +1,132 @@
+// 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 buildGet (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [get](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} parent - The ID of the parent document
+   * @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 {list} _source_exclude - A list of fields to exclude from the returned _source field
+   * @param {list} _source_include - 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',
+    'parent',
+    '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 get (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['type'] == null) {
+      const err = new ConfigurationError('Missing required parameter: type')
+      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 = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + 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 = buildGet

api/api/get_script.js

@@ -0,0 +1,93 @@
+// 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 buildGetScript (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [get_script](http://www.elastic.co/guide/en/elasticsearch/reference/master/modules-scripting.html) request
+   *
+   * @param {string} id - Script ID
+   * @param {time} master_timeout - Specify timeout for connection to master
+   */
+
+  const acceptedQuerystring = [
+    'master_timeout',
+    'pretty',
+    'human',
+    'error_trace',
+    'source',
+    'filter_path'
+  ]
+
+  const snakeCase = {
+    masterTimeout: 'master_timeout',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function getScript (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 = 'GET'
+    }
+
+    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: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildGetScript

api/api/get_source.js

@@ -0,0 +1,127 @@
+// Licensed to Elasticsearch B.V under one or more agreements.
+// Elasticsearch B.V licenses this file to you under the Apache 2.0 License.
+// See the LICENSE file in the project root for more information
+
+'use strict'
+
+/* eslint camelcase: 0 */
+/* eslint no-unused-vars: 0 */
+
+function buildGetSource (opts) {
+  // eslint-disable-next-line no-unused-vars
+  const { makeRequest, ConfigurationError, handleError, snakeCaseKeys } = opts
+  /**
+   * Perform a [get_source](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 {string} parent - The ID of the parent document
+   * @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 = [
+    'parent',
+    '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 = {
+    _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
+    _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
+    versionType: 'version_type',
+    errorTrace: 'error_trace',
+    filterPath: 'filter_path'
+  }
+
+  return function getSource (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['type'] == null) {
+      const err = new ConfigurationError('Missing required parameter: type')
+      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 = 'GET'
+    }
+
+    var ignore = options.ignore
+    if (typeof ignore === 'number') {
+      options.ignore = [ignore]
+    }
+
+    var path = ''
+
+    path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_source'
+
+    // build request object
+    const request = {
+      method,
+      path,
+      body: null,
+      querystring
+    }
+
+    options.warnings = warnings.length === 0 ? null : warnings
+    return makeRequest(request, options, callback)
+  }
+}
+
+module.exports = buildGetSource