authentication with firebase authorization with custom service

Question

I need to use the authentication service from firebase. but use my existing authorization service.

Can i use user token, sessions info from firebase.auth().onAuthStateChanged(function(user) {})

what is the best way/ways to manage these kind of use cases. Should i also store my user details cookies, token etc?

Answer 1

You can implement a custom provider for Firebase Authentication. In this process:

1. You sign the user in to your service with their credentials as usual.
2. You then mint a token based on the user's profile.
3. The user then uses that token to sign in to Firebase.

The entire process is quite well documented on the links I included above.