Mistakes in firebase docs

[PrimeTheFirst]

Page URL

https://firebase.google.com/codelabs/firebase-auth-in-flutter-apps#6

Page source

No response

Describe the problem

The page gives incomplete code. By the end, it mentions that google sign in/up works, but it doesnt. They forgot to add sha1 and sha256 fingerprints to the firebase project settings, due to which it says "An unknown error has occurred".

Expected fix

Please mention the instructions to generate and save the fingerprints and make the app work.

Additional context

No response

I would like to fix this problem.

• [ ] I will try and fix this problem on docs.flutter.dev.