firebase manage user code example
Example 1: firebase auth get current user
var user = firebase.auth().currentUser;var name, email, photoUrl, uid, emailVerified;if (user != null) { name = user.displayName; email = user.email; photoUrl = user.photoURL; emailVerified = user.emailVerified; uid = user.uid; // The user's ID, unique to the Firebase project. Do NOT use // this value to authenticate with your backend server, if // you have one. Use User.getToken() instead.}
Example 2: firebase auth update current user
var user = firebase.auth().currentUser;user.updateProfile({ displayName: "Jane Q. User", photoURL: "https://example.com/jane-q-user/profile.jpg"}).then(function() { // Update successful.}).catch(function(error) { // An error happened.});