Swagger UI does not work with Firebase Functions (a 404 Error)

[Alex]

Is there an existing issue for this?

• I have searched the existing issues

Current behavior

Opening http://127.0.0.1:5000/app follows with a 404 error. The page is blank.
I tried to pass another path ('', '/') but it did not work too.

The site works via Firebase Hosting with redirecting to the Functions:

firebase.json:

    "rewrites": [
      {
        "source": "/app",
        "function": "api"
      }
    ]

Minimum reproduction code

https://gist.github.com/DesmondFox/b9a70c0f38d8c1a9e28f2bc54435a573

Steps to reproduce

npm run build && firebase emulators:start

Expected behavior

Visiting http://127.0.0.1:5000/app displays the Swagger UI.

Package version

7.1.9 (7.1.8 does not work propertly too)

NestJS version

10.0.0

Node.js version

18.17.1

In which operating systems have you tested?

• macOS
• Windows
• Linux

Other

No response

[Kamil Mysliwiec]

Please, use our Discord channel (support) for such questions. We are using GitHub to track bugs, feature requests, and potential improvements.