openapi: 3.0.0
info:
  title: Switching between multiple content-type test
  version: 1.0.0
servers:
  - url: https://httpbin.org
paths:
  /post:
    post:
      requestBody:
        content:
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/Bar'
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/Foo'
          application/json:
            schema:
              $ref: '#/components/schemas/FooBar'
      responses:
        '200':
          description: ok

components:
  schemas:
    Foo:
      type: object
      properties:
        foo:
          type: string
          example: ''
    Bar:
      type: object
      required: [bar]
      properties:
        bar:
          type: integer
          example: 1
    FooBar:
      type: object
      required:
        - bar
      properties:
        foo:
          type: string
          example: ''
        bar:
          type: integer
          example: 1