How to save extra info during user signup process using firebase authentication

Question

I\'m building a website where I\'ve integrated firebase authentication for login/signup of site users.

Users can login/signup via either email-password or mobile OTP

Answer 1

First signup and onCompletemethod check if signup is successful.

     if (task.isSuccessful()) { 
   // String userId = task.getResult().getUser().getUid();
   //  get user unique id 
   // saveUserData()
    }

get user unique id and use it as key and store data like

applicationName->usersNode->userId->data

check if data is stored successfully proceed to next activity or Home page else remove user from auth and ask him to retry again.