I have an anroid app where i am usign custom authentication, this app has a feature of playing "quiz" inside a firebase webview application. How do I implement Firebase authentication for the user in the webview so that i can save the scores in firebase realtime database. Do i pass the UUID from android to the firebase application and then if the UUID is recieved in the webview I sign in the user anonymously?

P.S: I am not using firebase authentication in the android app iteself. It has a custom authentication system.