Android Firebase Authentication for Google Signin fails

Question

I followed the firebase documentation from top to bottom and implemented a simple google Sign in option to my app. However, when I try to signin, the process halts after sel

Answer 1

In my previous test app using Firebase FriendlyChat, I have encountered similar failure in Sign In, but I have solved it by going Google API console (https://console.developers.google.com/apis/credentials?project=) then download "client_secret.json" (in my case, I need to rename the downloaded filename "client_secret_xxxxx.json") for your Android client, put this file in your AndroidStudio project under "/src/main/resources" (create "resources" folder if not exist) then try to compile and run your Android app again.

Summary: you need 2 json files : "google-services.json" from Firebase Console and "client_secret.json" from Google API Console.

Hope this solve your problem.