openapi: 3.1.0
info:
  title: Google Looker Authentication API
  description: A simplified OpenAPI representation for Google Looker covering core Looker API 4.0 endpoints used to authenticate, fetch users, and run looks. This spec is a curated index entry pointing to the upstream Looker OpenAPI for full coverage.
  version: 4.0.0
  contact:
    name: Google Looker
    url: https://cloud.google.com/looker/docs/api-overview
servers:
- url: https://your-instance.cloud.looker.com:19999/api/4.0
  description: Looker instance API endpoint (replace your-instance).
security:
- BearerAuth: []
tags:
- name: Authentication
paths:
  /login:
    post:
      operationId: login
      summary: Login
      description: Exchange Looker API client_id and client_secret for an OAuth-style access token used to authorize subsequent API requests.
      tags:
      - Authentication
      parameters:
      - name: client_id
        in: query
        required: true
        description: Looker API client ID for the user account being authenticated.
        schema:
          type: string
      - name: client_secret
        in: query
        required: true
        description: Looker API client secret paired with the client_id.
        schema:
          type: string
      responses:
        '200':
          description: Successful login response containing the access token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccessToken'
components:
  schemas:
    AccessToken:
      type: object
      description: OAuth-style access token returned by the Looker login endpoint.
      properties:
        access_token:
          type: string
          description: Bearer token used to authorize subsequent Looker API requests.
        token_type:
          type: string
          description: Type of token issued, typically Bearer.
        expires_in:
          type: integer
          description: Lifetime of the access token in seconds.
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer