Google sign in doesn't work after publishing the app on playstore

Question

I am building an application with google sign in using firebase. But after I publish the app on playstore, the google sign in fails to work. I read few answers and I did use both the SHA keys for debug and release and then downloaded the google-services.json. Still the problem seems to persist. Can anyone please help.

Answer 1

I'm not expert in android, but recently i had developed react-native android application and in app have login with google. i'm also facing same problem.

In my case:

create release Android Signing Certificate SHA-1 by command or other way. helping tutorial here and here