If you want to add additional data, you need to create a model class for your user and then store it in your Firebase database . In general, after sign up, you can create a node tree for user like picture. Then, you can get the info with user key that can get by calling FirebaseUser.
Read moreCan I use Firebase without backend?
You can use firebase to skip backend programming , or even user firebase to setup a nodejs backend (functions). The bad thing about not using a backend is security, you would need to master firebase security rules to completely protect data.
Read moreHow do I set Firebase authentication?
Get Started with Firebase Authentication on Websites
Read moreWhat is custom authentication in Firebase?
You can integrate Firebase Authentication with a custom authentication system by modifying your authentication server to produce custom signed tokens when a user successfully signs in . Your app receives this token and uses it to authenticate with Firebase.
Read moreCan we use Firebase database without authentication?
It works fine with user logging in.
Read moreHow do you make a Firebase backend?
store files in the Firebase Storage. create and host a web app with Firebase Hosting.
Read moreHow do I change my Firebase authentication email?
You can customize the email template that is used in Authentication section of the Firebase console, on the Email Templates page. See Email Templates in Firebase Help Center. It is also possible to pass state via a continue URL to redirect back to the app when sending a verification email.
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