Elasticsearch Search API

openapi: 3.1.0
info:
  title: Elasticsearch REST Cat Search API
  version: 8.x
  description: Elasticsearch REST API provides programmatic access to document indexing, searching, aggregations, index lifecycle, and cluster operations. Supports basic authentication and API keys.
  contact:
    name: Elastic
    url: https://www.elastic.co/guide/en/elasticsearch/reference/current/rest-apis.html
servers:
- url: https://{host}:{port}
  description: Elasticsearch cluster
  variables:
    host:
      default: localhost
    port:
      default: '9200'
security:
- basicAuth: []
- apiKeyAuth: []
tags:
- name: Search
paths:
  /{index}/_search:
    get:
      summary: Search documents (URI)
      operationId: searchUri
      tags:
      - Search
      parameters:
      - in: path
        name: index
        required: true
        schema:
          type: string
      - in: query
        name: q
        schema:
          type: string
      - in: query
        name: size
        schema:
          type: integer
      - in: query
        name: from
        schema:
          type: integer
      responses:
        '200':
          description: Search results
    post:
      summary: Search documents (DSL)
      operationId: searchDsl
      tags:
      - Search
      parameters:
      - in: path
        name: index
        required: true
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                query:
                  type: object
                aggs:
                  type: object
                size:
                  type: integer
                from:
                  type: integer
      responses:
        '200':
          description: Search results
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization