swagger.yaml

openapi: 3.0.0
info:
  title: title
  version: 1.0.0

servers:
  - url: http://127.0.0.1:8080

paths:
  /bad:
    get:
      tags:
        - dota2
      summary: test get schemes
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/nested'
      operationId: getSchema
    post:
      tags:
        - dota2
      summary: test
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/nested'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/nested'
      operationId: createSchemes
components:
  schemas:
    nested:
      type: object
      properties:
        oneof:
          $ref: '#/components/schemas/oneof'
    oneof:
      discriminator:
        propertyName: some name
        mapping:
          one: '#/components/schemas/x'
          two: '#/components/schemas/y'
      oneOf:
        - $ref: '#/components/schemas/x'
        - $ref: '#/components/schemas/y'
    x:
      type: object
      required:
        - first_name
      properties:
        first_name:
          type: string
          minLength: 3
          maxLength: 20
          pattern: ^one$
    'y':
      type: object
      required:
        - last_name
      properties:
        last_name:
          type: string
          minLength: 3
          maxLength: 20
          pattern: ^two$