firebase-auth-basics

To set up Firebase Authentication, initialize the Firebase Web SDK in your app and enable at least one sign-in provider like Email/Password or Google. This establishes the client-side authentication state for your users.

Firebase Authentication supports multiple providers including Email/Password, Google Sign-In, and Anonymous authentication. You can configure these providers to manage user sessions and authentication flows in your web app.

You can restrict Firestore data access by implementing Firebase Security Rules that enforce access control using request.auth. This ensures only authenticated users can read or write their specific data.

Yes, Firebase Authentication allows you to manage basic user roles alongside secure data access. By combining authenticated requests with Firestore security rules, you can enforce role-based permissions for your application.

Anonymous authentication in Firebase allows users to access your app without providing credentials. It creates a temporary user session that can later be linked to a permanent account, enabling secure access control without initial sign-in friction.