Flutter - Can Google Sign in be used without firebase?
Yes ! you can.
Create project in cloud console.
Create OAuth 2.0 clientId (by restricting it with package name)
Download the JSON and place it in android->app folder, thats it.
Procced the steps as in google_sign_in package without getting into firebase
GoogleSignIn googleSignIn = GoogleSignIn( clientId:"xxxx.apps.googleusercontent.com");
clientId is optional- but required in flutter web
Also refer this for flutter web google sign in without firebase
Yes. Try visa - https://github.com/e-oj/visa
Here's an example with Facebook auth (It also supports google, twitch, discord, and Github):
import 'package:visa/auth-data.dart';
import 'package:visa/fb.dart';
class AuthPage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
/// Simply Provide all the necessary credentials
body: FaceBookAuth().visa.authenticate(
clientID: '139732240983759',
redirectUri: 'https://www.e-oj.com/oauth',
scope: 'public_profile,email',
state: 'fbAuth',
onDone: done
)
);
}
}
and the "done" callback:
done(AuthData authData){
print(authData);
/// You can pass the [AuthData] object to a
/// post-authentication screen. It contaions
/// all the user and OAuth data collected during
/// the authentication process. In this example,
/// our post-authentication screen is "complete-profile".
Navigator.pushReplacementNamed(
context, '/complete-profile', arguments: authData
);
}