API Versioning of type header is not supported

[DCampagnola]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

Enabling versioning with type "header", @nestjs/swagger doesn't generate the right documentation.

app.enableVersioning({
    type: VersioningType.HEADER,
    header: 'Accept-version',
  })

In the example I have two api in the same path with different versions

@Controller()
export class AppController {
  constructor(private readonly appService: AppService) {}

  @Get()
  @Version('v1')
  getHello(@Query('old_example') example: string): string {
    return example;
  }

  @Get()
  @Version('v2')
  getHelloV2(@Query('example') example: string): string {
    return example;
  }
}

In the example above, I can call the v1 api with header 'Accept-Version': v1 and call the v2 api with header 'Accept-Version': v2.
This is the openapi generated:

{
  "openapi": "3.0.0",
  "paths": {
    "/": {
      "get": {
        "operationId": "AppController_getHelloV2",
        "parameters": [
          {
            "name": "example",
            "required": true,
            "in": "query",
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": ""
          }
        }
      }
    }
  },
  "info": {
    "title": "Cats example",
    "description": "The cats API description",
    "version": "1.0",
    "contact": {}
  },
  "tags": [
    {
      "name": "cats",
      "description": ""
    }
  ],
  "servers": [],
  "components": {
    "schemas": {}
  }
}

It has only the v2 version.

Also adding ApiImplicitHeader in each version doesn't resolve the issue

Minimum reproduction code

https://github.com/DCampagnola/nestjs-swagger-header-versioning-bug/tree/main

Steps to reproduce

1. npm i
2. npm start:dev
3. Navigate in /api-json

Expected behavior

Generated api should include every version declared with the different docs

Package version

6.1.4

NestJS version

No response

Node.js version

No response

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

No response

[kamilmysliwiec]

Let's track this here #2063