With Google Sign-In, users can log in using their Google Accounts.
Prerequisites
- Completed Register Your Application in Firebase and update file google-service.json
- Completed Change Application ID for you project
- Enable the Google People API.
- Make sure you’ve filled out all required fields in the console for OAuth consent screen. Otherwise, you may encounter
APIException
errors.
Important: Make sure you choose the correct project that you have created in Firebase when you Enable Google People API and fill fields in Auth consent screen.

Set up the Google Client ID in the source code:
Open file cirilla/android/app/google-services.json
and copy client ID
Open file cirilla/lib/constants/app.dart
and replace with your client_id content copy above
