如何不在几乎所有路径中复制粘贴 3 个一般错误响应?

How not to copy-paste 3 generic error responses in almost all paths?

我希望我的几乎所有路径都有以下 3 个一般错误响应。我如何在 Swagger 中描述它而不在各处复制粘贴这些行?

    401:
      description: The requester is unauthorized.
      schema:
        $ref: '#/definitions/Error'
    500:
      description: "Something went wrong. It's server's fault."
      schema:
        $ref: '#/definitions/Error'
    503:
      description: Server is unavailable. Maybe there is maintenance?
      schema:
        $ref: '#/definitions/Error'

我如何在请求中使用它的示例:

paths:
    /roles:
      get:
        summary: Roles
        description: |
          Returns all roles available for users.
        responses:
          200:
            description: An array with all roles.
            schema:
              type: array
              items:
                $ref: '#/definitions/Role'
          401:
            description: The requester is unauthorized.
            schema:
              $ref: '#/definitions/Error'
          500:
            description: "Something went wrong. It's server's fault."
            schema:
              $ref: '#/definitions/Error'
          503:
            description: Server is unavailable. Maybe there is maintenance?
            schema:
              $ref: '#/definitions/Error'

看来我可以添加以下全局响应定义:

# An object to hold responses that can be used across operations.
# This property does not define global responses for all operations.
responses:
  NotAuthorized:
    description: The requester is unauthorized.
    schema:
      $ref: '#/definitions/Error'

但是我仍然需要在这样的路径中引用它:

401:
  $ref: '#/responses/NotAuthorized'


在 OpenAPI 3.0 中也一样,除了它使用 #/components/responses/... 而不是 #/responses/...:

openapi: 3.0.0

# An object to hold responses that can be used across operations.
# This property does not define global responses for all operations.
components:
  responses:
    NotAuthorized:
      description: The requester is unauthorized.
      schema:
        $ref: '#/components/schemas/Error'

# Then, in operation responses, use:
...
401:
  $ref: '#/components/responses/NotAuthorized'


OpenAPI 规范存储库中还有一个开放的 feature request 以添加对 global/default 操作响应的支持。