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OpenAPI Specification

openapi: 3.2.0
info:
  title: Elasticsearch REST Cluster API
  description: REST APIs for the Elasticsearch search and analytics engine. Provides operations for indexing documents, searching, managing indices, mappings, aliases, security, snapshots, and cluster administration. Used both by the Kibana UI and directly by client applications to ingest, search, and analyze data at scale.
  version: '9.0'
  contact:
    name: Elastic
    url: https://www.elastic.co
  license:
    name: Elastic License 2.0
    url: https://www.elastic.co/licensing/elastic-license
servers:
- url: https://{deployment}.es.{region}.cloud.es.io:9243
  description: Elastic Cloud deployment
  variables:
    deployment:
      default: my-deployment
      description: Deployment identifier
    region:
      default: us-east-1
      description: Cloud region
- url: http://localhost:9200
  description: Local Elasticsearch
security:
- apiKeyAuth: []
- basicAuth: []
tags:
- name: Cluster
  description: Cluster health, state, and statistics.
paths:
  /_cluster/health:
    get:
      operationId: getClusterHealth
      summary: Get cluster health
      tags:
      - Cluster
      responses:
        '200':
          description: Cluster health response
          content:
            application/json:
              schema:
                type: object
                properties:
                  cluster_name:
                    type: string
                  status:
                    type: string
                    enum:
                    - green
                    - yellow
                    - red
                  number_of_nodes:
                    type: integer
components:
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: ApiKey base64-encoded id:api_key
    basicAuth:
      type: http
      scheme: basic
externalDocs:
  description: Elasticsearch REST API Reference
  url: https://www.elastic.co/docs/api/doc/elasticsearch