Authentication is one of the most critical parts of any mobile app — and also one of the easiest places to get things wrong.
I’ve published a complete Flutter 3 + Firebase Authentication tutorial that walks through building a production-ready auth flow with:
- Email & Password authentication
- Google Sign-In (using Firebase providers)
- Apple Sign-In (nonce-based, iOS compliant)
- Auth state listeners for auto login & session handling
- Security best practices and account linking
The tutorial avoids deprecated APIs and reflects how Flutter apps are built today.
👉 Read the full guide:
https://www.djamware.com/post/6981eba64ff631795c4bb034/flutter-3-firebase-authentication-tutorial-email-google-apple-signin
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