Firebase - Adding Additional User Data To Separate DB

I'm new to Firebase and am using the email/password sign-in method. I have the method working fine however on my signup form I have additional fields I want to enter in the databas

Solution 1:

1. Initialization of firebase object was done for the old version, see this https://firebase.google.com/docs/web/setup , it uses firebase.initializeApp(config) instead of new firebase()

2. to update your database with user's additional fields use this code

   firebase.database().ref('users/' + user.uid).set({
       firstName: firstName,
       lastName: lastName
   })
   

Solution 2:

For updating your database with additional parameters use the below given code and make changes accordingly.

function writeUserData(userId, name, email, imageUrl) {
                firebase.database().ref('users/' + userId).set({
                username: name,
                email: email,
                profile_picture : imageUrl
                });
              }