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OpenAPI Specification

openapi: 3.2.0
info:
  title: Heroku Platform Domains API
  description: The Heroku Platform API enables programmatic access to Heroku's deployment platform. Manage apps, dynos, add-ons, config vars, domains, pipelines, releases, and other platform resources.
  version: '3'
  contact:
    name: Heroku
    url: https://devcenter.heroku.com/
  license:
    name: Proprietary
    url: https://www.heroku.com/policy/tos
servers:
- url: https://api.heroku.com
  description: Heroku Platform API
security:
- BearerAuth: []
tags:
- name: Domains
  description: Custom domain management
paths:
  /apps/{app_id_or_name}/domains:
    get:
      operationId: listDomains
      summary: List domains
      tags:
      - Domains
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      responses:
        '200':
          description: List of domains
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Domain'
    post:
      operationId: createDomain
      summary: Create a domain
      tags:
      - Domains
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - hostname
              properties:
                hostname:
                  type: string
                sni_endpoint:
                  type: string
      responses:
        '201':
          description: Domain created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Domain'
  /apps/{app_id_or_name}/domains/{domain_id_or_hostname}:
    get:
      operationId: getDomain
      summary: Get domain info
      tags:
      - Domains
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      - name: domain_id_or_hostname
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Domain details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Domain'
    delete:
      operationId: deleteDomain
      summary: Delete a domain
      tags:
      - Domains
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      - name: domain_id_or_hostname
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Domain deleted
components:
  schemas:
    Domain:
      type: object
      properties:
        id:
          type: string
          format: uuid
        hostname:
          type: string
        kind:
          type: string
          enum:
          - heroku
          - custom
        acm_status:
          type: string
          nullable: true
        acm_status_reason:
          type: string
          nullable: true
        cname:
          type: string
          nullable: true
        sni_endpoint:
          type: object
          nullable: true
          properties:
            id:
              type: string
              format: uuid
            name:
              type: string
        status:
          type: string
        app:
          type: object
          properties:
            id:
              type: string
              format: uuid
            name:
              type: string
        created_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
  parameters:
    appIdOrName:
      name: app_id_or_name
      in: path
      required: true
      schema:
        type: string
      description: App ID (UUID) or app name
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Heroku API key or OAuth token