Authenticate users into your Firebase app with Apple SignIn on the web.
Implement role-based user authorization and security rules by adding custom claims to the Firebase Auth ID token.
Learn how to Setup GoogleSign and Firestore with Flutter from Scratch
Build a Firebase Google signin user authentication flow with @angular/fire that saves custom user data to the Firestore.
Access Google APIs from Firebase with the gapi client library.
How to implement passwordless email-link authentication with Firebase and Angular
Use the Firebase to implement Phone authentication on the web.