extension in utoipa::path response

[francis2tm]

Hello! First of all - Amazing project.

I need a way for my openapi to look like this:

  /v1/my/path:
    post:
      responses:
        '200':
          description: My Endpoint
          content:
            text/event-stream:
              x-my-extension: "[DONE]"
              schema:
                $ref: '#/components/schemas/MyEndpointResponse'

Currently, I cannot find a away to insert an extension in the response, like x-my-extension: "[DONE]" in my example.

Is there a way to do this?

Thanks in advance

[juhaku]

At the moment there are no direct support for extensions in utoipa::path attribute macro. And only way to add those is manually via Modify trait or otherwise edit the OpenApi before serving. The response itself does support extensions https://docs.rs/utoipa/latest/utoipa/openapi/response/struct.Response.html but it is a bit convoluted to add one for now.

[juhaku]

Related #1228