如何使用OpenAPI(Swagger)描述多部分响应?

问题描述

我有一项服务可创建包含以下内容的多部分文件:

I have a service that creates a multipart file containing:

• 代表图像缓冲区的数据字节数组
• 表示图像信息(坐标，格式等)的JSON

是否可以使用YAML在OpenAPI(Swagger)定义中对此自定义响应建模?

Is it possible to model this custom response in an OpenAPI (Swagger) definition, using YAML?

推荐答案

可以使用OpenAPI 3.0而不是OpenAPI 2.0(fka Swagger 2.0)描述多部分响应.

Multipart responses can be described using OpenAPI 3.0, but not OpenAPI 2.0 (fka Swagger 2.0).

openapi: 3.0.0
...
paths:
  /something:
    get:
      responses:
        '200':
          description: OK
          content:
            multipart/mixed: # <-- Content-Type of the response
              schema:
                type: object
                properties:
                  # Part 1 - application/octet-stream
                  file:  # <-- part name
                    type: string
                    format: binary
                  # Part 2 - application/json
                  metadata:  # <-- part name
                    type: object
                    properties:
                      foo:
                        type: string
                        example: bar
                    required:
                      - foo

              # Optional, see https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#encoding-object
              encoding:
                file:
                  ...
                metadata:
                  ...

可选的 encoding 键可用于覆盖子零件的Content-Type或添加子零件的标题(例如Content-Disposition).

The optional encoding key can be used to override the Content-Type for subparts or add headers for subparts (e.g. Content-Disposition).

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