using-interfaces.yaml

openapi: 3.0.0
info:
  title: 'Example of using interfaces in swagger-php'
  description: 'Using interfaces'
  contact:
    name: 'Swagger API Team'
  version: 1.0.0
servers:
  -
    url: 'https://example.localhost'
    description: 'API server'
paths:
  '/products/{id}':
    get:
      tags:
        - api
      description: 'Get product in any colour for id'
      operationId: fef5577fd78858297fd2e4291598d8d0
      parameters:
        -
          name: id
          in: path
          description: 'ID of product to return'
          required: true
          schema:
            type: string
      responses:
        '200':
          description: 'successful operation'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Product'
  '/products/green/{id}':
    get:
      tags:
        - api
      description: 'Get green products'
      operationId: d6617b71407f39c923d01fe82bb4ed65
      parameters:
        -
          name: id
          in: path
          description: 'ID of product to return'
          required: true
          schema:
            type: string
      responses:
        '200':
          description: 'successful operation'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GreenProduct'
components:
  schemas:
    GreenProduct:
      title: GreenProduct
      type: object
      allOf:
        -
          $ref: '#/components/schemas/Product'
        -
          properties:
            color:
              description: 'The product color.'
              example: blue
          type: object
    Product:
      title: 'Product model'
      type: object
      allOf:
        -
          $ref: '#/components/schemas/ProductInterface'
        -
          properties:
            id:
              description: 'The unique identifier of a product in our catalog.'
              type: integer
              format: int64
              example: 1
          type: object
    ProductInterface:
      properties:
        name:
          description: 'The product name.'
          example: toaster
      type: object
tags:
  -
    name: api
    description: 'API operations'