I created the Firebase Auth class a year ago. Now After updating the Dart language and updating the firebase auth package some errors appeared.
import 'package:firebase_auth/firebase_auth.dart';
class AuthService {
final FirebaseAuth _firebaseAuth = FirebaseAuth.instance;
Stream<String> get onAuthStateChanged => _firebaseAuth.onAuthStateChanged.map(
(FirebaseUser user) => user.uid,
);
// Sign up Email & passowrd
Future<String> createUserWithEmailAndPassword(
String email, String password, String name) async {
final currentUser = await _firebaseAuth.createUserWithEmailAndPassword(
email: email,
password: password,
);
//updat username
var userUpdateInfo = UserUpdateInfo();
userUpdateInfo.displayName = name;
await currentUser.updateProfile(userUpdateInfo);
await currentUser.reload();
return currentUser.uid;
}
// sign in Email & password
Future<String> sinInWithEmailAndPassword(
String email, String password) async {
return (await _firebaseAuth.signInWithEmailAndPassword(
email: email, password: password))
.uid;
}
// sign out
signOut() {
return _firebaseAuth.signOut();
}
}
click here to see error
All firebase plugins for flutter since a year ago have a lot of breaking changes you should go to firebase.flutter.dev and check it
I've been trying and searching for more than two weeks The error appears in the code:
//updat username
var userUpdateInfo = UserUpdateInfo();
userUpdateInfo.displayName = name;
await currentUser.updateProfile(userUpdateInfo);
await currentUser.reload();
return currentUser.uid;
}
The method 'UserUpdateInfo' isn't defined for the type 'AuthService'
Related
I can save the email and the password with Firebase Authentication. I also save this information with Cloud Firestore. But how can I add and save the displayName after registering?
my code:
Future registerWithEmailAndPassword(String email, String password) async {
try {
AuthResult result = await _auth.createUserWithEmailAndPassword(
email: email, password: password);
FirebaseUser user = result.user;
// create a new document for the user with the uid
await DatabaseService(uid: user.uid)
.updateUserData('User', user.email, 'test.de/test.png', user.uid);
return _userFromFirebaseUser(user);
} catch (e) {
print(e.toString());
return null;
}
}
the register form button:
onPressed: () async {
if (_formKey.currentState.validate()) {
setState(() => loading = true);
dynamic result = await _auth
.registerWithEmailAndPassword(
email, password);
if (result == null) {
setState(() {
error = 'Valid email, please';
loading = false;
});
}
}
}
You can use updateProfile method given in the FirebaseUser class to update the name and photo url.
updateProfile({String displayName, String photoURL}).
For email you can use the different method
updateEmail(String newEmail) which is a async method.
Or to save the username directly into the firestore, after successful login you can use 'set' method of the FirebaseFirestore to save email, password and the username.
Here's the code if you want to save the Username together with the email and password
final FirebaseAuth _auth = FirebaseAuth.instance;
//register with email & password & save username instantly
Future registerWithEmailAndPassword(String name, String password, String email) async {
try {
UserCredential result = await _auth.createUserWithEmailAndPassword(email: email, password: password);
User user = result.user;
user.updateProfile(displayName: name); //added this line
return _user(user);
} catch(e) {
print(e.toString());
return null;
}
}
late User userFirebase;
Future<UserCredential> userCredential =await //Your code signin or signup
await userCredential.then((UserCredential value) {
userFirebase = value.user!;
});
await userFirebase.updateDisplayName(event.name);
You can use updateDisplayName() and updatePhotoURL() methods on a User object to add the displayName/profile image to Firebase user.
final userCredential = await _auth.createUserWithEmailAndPassword(
email: email,
password: password,
);
//After creating a user in Firebase, we then are able to change name/pictue
await userCredential.user?.updateDisplayName(name);
await userCredential.user?.updatePhotoURL(imageUrl);
As of october 2021, updateProfile() is deprecated, and you should use updateDisplayName() and updatePhotoURL() instead.
I need the username and password that is created to be saved in the database, I have already created my database with realtime database that I am currently using to store data from a form that I create
import 'package:firebase_auth/firebase_auth.dart';
import 'dart:async';
import 'package:firebase_database/firebase_database.dart';
abstract class BaseAuth {
Future<String> singInWithEmailAndPassword(String email, String password);
Future<String> createUserWithEmailAndPassword(String email, String password);
Future<String> currentUser();
Future<void> singOut();
}
class Auth implements BaseAuth {
final FirebaseAuth _firebaseAuth = FirebaseAuth.instance;
final databaseRef = FirebaseDatabase.instance.ref();
#override
Future<String> singInWithEmailAndPassword(
String email, String password) async {
UserCredential user = await _firebaseAuth.signInWithEmailAndPassword(
email: email.toString(), password: password.toString());
return user.toString();
}
#override
Future<String> createUserWithEmailAndPassword(
String email, String password) async {
UserCredential user = await _firebaseAuth.createUserWithEmailAndPassword(
email: email.toString(), password: password.toString());
return user.toString();
}
#override
Future<String> currentUser() async {
User currentUser = _firebaseAuth.currentUser!;
return currentUser.toString();
}
#override
Future<void> singOut() async {
return _firebaseAuth.signOut();
}
}
This es my auth.dart,this is where i created my methods to create and login
I hope you can support me since this is part of my final project
I have a flutter firebase createUserWithEmailAndPassword function with the displayName update.
display name prints normally at the moment of fb user creation.
After signup MainPage loads with the users email and displayName. But displayName returns null value error. If I delete displayName from the MainPage - all works fine.
If I reload app, it works fine.
When I login, it works fine.
It can't pass the displayName at the moment of signup only.
Where I am wrong?
class AuthServiceProvider extends ChangeNotifier {
final auth.FirebaseAuth _firebaseAuth = auth.FirebaseAuth.instance;
final googleSingIn = GoogleSignIn();
UserModel? _userFromFirebase(auth.User? user) {
if (user == null) {
return null;
}
return UserModel(
user.displayName,
user.uid,
user.email,
);
}
Stream<UserModel?>? get user {
return _firebaseAuth.authStateChanges().map(_userFromFirebase);
}
Future<UserModel?> createUserWithEmailAndPassword(
String name,
String email,
String password,
) async {
try {
final userCred = await _firebaseAuth.createUserWithEmailAndPassword(
email: email,
password: password,
);
auth.User? firebaseUser = _firebaseAuth.currentUser;
if (firebaseUser != null) {
await firebaseUser.updateDisplayName(name);
await firebaseUser.reload();
firebaseUser = _firebaseAuth.currentUser;
}
print('FIREBASE USER IS $firebaseUser');
return _userFromFirebase(firebaseUser);
} catch (e) {
print(e.toString());
return null;
}
}
}
If your class were to extend either StatelessWidget or StatefulWidget, then all you'd have to do is to pass the data (displayName) between the screens.
This is not an answer but a suggestion:
You should try changing the ChangeNotifier to a StatefulWidget
and pass the data between screens...
You could also setup an
Authentication class that will hold all these Future methods so that
these calls can be reusable in your code. With this method, all you have to do is to call the specific function and give its required parameters.
As usually the solution is very simple if you think a little bit.
As all this is through the firebase auth, at the main page loading I just grab the firebase user with its display name that is saved in FB both for GoogleSignIn and createUserWithEmailAndPassword (required at registration)
import 'package:firebase_auth/firebase_auth.dart' as auth;
final auth.FirebaseAuth _firebaseAuth = auth.FirebaseAuth.instance;
final String firebaseUser =
_firebaseAuth.currentUser!.displayName ?? 'Unknown user';
I create Auth Class for firebase Auth version 0.11.1+10, now after update the packege firebase auth to last version some code is error.
Future<String> createUserWithEmailAndPassword(
String email, String password, String name) async {
final currentUser = await _firebaseAuth.createUserWithEmailAndPassword(
email: email,
password: password,
);
//updat username is error code ***************************
var userUpdateInfo = UserUpdateInfo();
userUpdateInfo.displayname = name;
await currentUser.updateProfile(userUpdateInfo);
await currentUser.reload();
return currentUser.uid;
}
See Error
UserUpdateInfo is now deprecated but you can use this instead
await FirebaseAuth.instance.currentUser.updateProfile();
And you pass the info you want to update to updateProfile()
I am trying to make login and Signup features for my project but stuck in converting from Firebase old version to the new latest one. As I want to check if user signed in or not, I have added currentUser() method but then I got an error.
As I understand FirebaseUser class has replaced by AuthResult class
The main problem comes from currentUser() method: Error is the following and when I want to register, app shuts down;
(NoSuchMethodError: The getter 'uid' was called on null. Receiver: null Tried calling: uid)
This the old:
import 'dart:async';
import 'package:firebase_auth/firebase_auth.dart';
abstract class BaseAuth {
Future<String> signInWithEmailAndPassword(String email, String password);
Future<String> createUserWithEmailAndPassword(String email, String password);
Future<String> currentUser();
Future<void> signOut();
}
class Auth implements BaseAuth {
final FirebaseAuth _firebaseAuth = FirebaseAuth.instance;
#override
Future<String> signInWithEmailAndPassword(String email, String password) async {
final FirebaseUser user = await _firebaseAuth.signInWithEmailAndPassword(email: email, password: password);
return user?.uid;
}
#override
Future<String> createUserWithEmailAndPassword(String email, String password) async {
final FirebaseUser user = await _firebaseAuth.createUserWithEmailAndPassword(email: email, password: password);
return user?.uid;
}
#override
Future<String> currentUser() async {
final FirebaseUser user = await _firebaseAuth.currentUser();
return user?.uid;
}
#override
Future<void> signOut() async {
return _firebaseAuth.signOut();
}
}
This is the new one:
abstract class BaseAuth{
Future<String> signInWithEmailAndPassword (String email, String password);
Future<String> createUserWithEmailAndPassword (String email, String password);
Future<String> currentUser();
}
class Auth implements BaseAuth{
#override
Future<String> signInWithEmailAndPassword (String email, String password) async {
final AuthResult user = await FirebaseAuth.instance
.signInWithEmailAndPassword(email: email, password: password);
return user.user.uid;
}
#override
Future<String> createUserWithEmailAndPassword (String email, String password) async {
final AuthResult user = await FirebaseAuth.instance
.createUserWithEmailAndPassword(email: email, password: password);
return user.user.uid;
}
#override
Future<String> currentUser() async {
final FirebaseUser user = await FirebaseAuth.instance.currentUser();
return user.uid; //Error comes from here
}
#override
Future<void> signOut() async {
return _firebaseAuth.signOut();
}
}