I am using Flutter with the 'Firebase_auth' package.
While I am making the following signUp function, I get an error on the 'UserUpdateInfo'.
signup(CustomUser user, AuthNotifier authNotifier) async {
UserCredential userCredential = await FirebaseAuth.instance
.createUserWithEmailAndPassword(email: user.email, password: user.password)
.catchError((error) => print(error.code));
if (userCredential != null) {
UserUpdateInfo updateInfo = UserUpdateInfo();
updateInfo.displayName = user.displayName;
User firebaseUser = userCredential.user;
if (firebaseUser != null) {
await firebaseUser.updateProfile(updateInfo);
await firebaseUser.reload();
print("Sign up: $firebaseUser");
User currentUser = await FirebaseAuth.instance.currentUser();
authNotifier.setUser(currentUser);
}}}
The following error is shown:
Undefined class 'UserUpdateInfo'
What can I do about it?
It seems like you've updated your Firebase_Auth package. UserUpdateInfo is now deprecated. Try this instead:
await FirebaseAuth.instance.currentUser.updateProfile(displayName:user.displayName);
Related
I'm new to Flutter. I have an Issue with Firebase Auth/ Google Auth
The FirebaseUser is not defined
Code:
FirebaseAuth _auth = FirebaseAuth.instance;
GoogleSignIn googleSignIn = GoogleSignIn();
Future<FirebaseUser> currentUser() async { // The Issue is here in the Future<>
final GoogleSignInAccount account = await googleSignIn.signIn();
final GoogleSignInAuthentication authentication =
await account.authentication;
final GoogleAuthCredential credential = GoogleAuthProvider.getCredential(
idToken: authentication.idToken, accessToken: authentication.accessToken);
final AuthResult authResult = await _auth.signInWithCredential(credential);
final FirebaseUser user = authResult.user; // and here as I can't define this FirebaseUser object to return
return user;
}
Pubspec.yml
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.3
firebase_auth: ^0.18.0
location: ^3.0.2
page_transition: ^1.1.6
google_sign_in: ^4.5.1
flutter_facebook_login: ^3.0.0
firebase_database: ^4.0.0
I also face the same issue with AuthResult
final AuthResult authResult = await _auth.signInWithCredential(credential);
Starting from Version firebase_auth 0.18.0:
In the newest version of firebase_auth, the class FirebaseUser was changed to User, and the class AuthResult was changed to UserCredential. Therefore change your code to the following:
Future<User> currentUser() async {
final GoogleSignInAccount account = await googleSignIn.signIn();
final GoogleSignInAuthentication authentication =
await account.authentication;
final GoogleAuthCredential credential = GoogleAuthProvider.credential(
idToken: authentication.idToken,
accessToken: authentication.accessToken);
final UserCredential authResult =
await _auth.signInWithCredential(credential);
final User user = authResult.user;
return user;
}
FirebaseUser changed to User
AuthResult changed to UserCredential
GoogleAuthProvider.getCredential() changed to GoogleAuthProvider.credential()
onAuthStateChanged which notifies about changes to the user's sign-in state was replaced with authStateChanges()
currentUser() which is a method to retrieve the currently logged in user, was replaced with the property currentUser and it no longer returns a Future<FirebaseUser>.
Example of the above two methods:
FirebaseAuth.instance.authStateChanges().listen((event) {
print(event.email);
});
And:
var user = FirebaseAuth.instance.currentUser;
print(user.uid);
Deprecation of UserUpdateInfo class for firebaseUser.updateProfile method.
Example:
Future updateName(String name, FirebaseUser user) async {
var userUpdateInfo = new UserUpdateInfo();
userUpdateInfo.displayName = name;
await user.updateProfile(userUpdateInfo);
await user.reload();
}
now
import 'package:firebase_auth/firebase_auth.dart' as firebaseAuth;
Future updateName(String name, auth.User firebaseUser) async {
firebaseUser.updateProfile(displayName: name);
await firebaseUser.reload();
}
Since firebase_auth 0.18.0, the class FirebaseUser was changed to User
In the newest version of firebase_auth, the class FirebaseUser was changed to User, and the class AuthResult was changed to UserCredentail. Therefore change FirebaseUser to User
The class FirebaseUser was changed to User
try this way
_registerUser() async {
try {
final User? user =
(await FirebaseAuth.instance.signInWithEmailAndPassword(
email: emailCtrl.text,
password: passCtrl.text,
))
.user;
FirebaseFirestore.instance.collection('users').doc().set({
'name': nameCtrl.text,
'uid': user!.uid,
'email': user.email,
'isEmailVerified': user.emailVerified, // will also be false
'photoUrl': user.photoURL, // will always be null
});
print("Created");
} catch (e) {
print(e.toString());
}
}
Run
flutter pub get
Then rebuild your app.
This can be your signin function with email and password as of Sept 2020.Initialze app is a new introduced method we must at least call once before we use any other firebase methods.
Future<void> signin() async {
final formState = _formkey.currentState;
await Firebase.initializeApp();
if (formState.validate()) {
setState(() {
loading = true;
});
formState.save();
try {
print(email);
final User user = (await FirebaseAuth.instance
.signInWithEmailAndPassword(email: email, password: password))
.user;
} catch (e) {
print(e.message);
setState(() {
loading = false;
});
}
}
}
I'm new to Flutter. I have an Issue with Firebase Auth/ Google Auth
The FirebaseUser is not defined
Code:
FirebaseAuth _auth = FirebaseAuth.instance;
GoogleSignIn googleSignIn = GoogleSignIn();
Future<FirebaseUser> currentUser() async { // The Issue is here in the Future<>
final GoogleSignInAccount account = await googleSignIn.signIn();
final GoogleSignInAuthentication authentication =
await account.authentication;
final GoogleAuthCredential credential = GoogleAuthProvider.getCredential(
idToken: authentication.idToken, accessToken: authentication.accessToken);
final AuthResult authResult = await _auth.signInWithCredential(credential);
final FirebaseUser user = authResult.user; // and here as I can't define this FirebaseUser object to return
return user;
}
Pubspec.yml
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.3
firebase_auth: ^0.18.0
location: ^3.0.2
page_transition: ^1.1.6
google_sign_in: ^4.5.1
flutter_facebook_login: ^3.0.0
firebase_database: ^4.0.0
I also face the same issue with AuthResult
final AuthResult authResult = await _auth.signInWithCredential(credential);
Starting from Version firebase_auth 0.18.0:
In the newest version of firebase_auth, the class FirebaseUser was changed to User, and the class AuthResult was changed to UserCredential. Therefore change your code to the following:
Future<User> currentUser() async {
final GoogleSignInAccount account = await googleSignIn.signIn();
final GoogleSignInAuthentication authentication =
await account.authentication;
final GoogleAuthCredential credential = GoogleAuthProvider.credential(
idToken: authentication.idToken,
accessToken: authentication.accessToken);
final UserCredential authResult =
await _auth.signInWithCredential(credential);
final User user = authResult.user;
return user;
}
FirebaseUser changed to User
AuthResult changed to UserCredential
GoogleAuthProvider.getCredential() changed to GoogleAuthProvider.credential()
onAuthStateChanged which notifies about changes to the user's sign-in state was replaced with authStateChanges()
currentUser() which is a method to retrieve the currently logged in user, was replaced with the property currentUser and it no longer returns a Future<FirebaseUser>.
Example of the above two methods:
FirebaseAuth.instance.authStateChanges().listen((event) {
print(event.email);
});
And:
var user = FirebaseAuth.instance.currentUser;
print(user.uid);
Deprecation of UserUpdateInfo class for firebaseUser.updateProfile method.
Example:
Future updateName(String name, FirebaseUser user) async {
var userUpdateInfo = new UserUpdateInfo();
userUpdateInfo.displayName = name;
await user.updateProfile(userUpdateInfo);
await user.reload();
}
now
import 'package:firebase_auth/firebase_auth.dart' as firebaseAuth;
Future updateName(String name, auth.User firebaseUser) async {
firebaseUser.updateProfile(displayName: name);
await firebaseUser.reload();
}
Since firebase_auth 0.18.0, the class FirebaseUser was changed to User
In the newest version of firebase_auth, the class FirebaseUser was changed to User, and the class AuthResult was changed to UserCredentail. Therefore change FirebaseUser to User
The class FirebaseUser was changed to User
try this way
_registerUser() async {
try {
final User? user =
(await FirebaseAuth.instance.signInWithEmailAndPassword(
email: emailCtrl.text,
password: passCtrl.text,
))
.user;
FirebaseFirestore.instance.collection('users').doc().set({
'name': nameCtrl.text,
'uid': user!.uid,
'email': user.email,
'isEmailVerified': user.emailVerified, // will also be false
'photoUrl': user.photoURL, // will always be null
});
print("Created");
} catch (e) {
print(e.toString());
}
}
Run
flutter pub get
Then rebuild your app.
This can be your signin function with email and password as of Sept 2020.Initialze app is a new introduced method we must at least call once before we use any other firebase methods.
Future<void> signin() async {
final formState = _formkey.currentState;
await Firebase.initializeApp();
if (formState.validate()) {
setState(() {
loading = true;
});
formState.save();
try {
print(email);
final User user = (await FirebaseAuth.instance
.signInWithEmailAndPassword(email: email, password: password))
.user;
} catch (e) {
print(e.message);
setState(() {
loading = false;
});
}
}
}
Can't add I more user information with await FirebaseAuth.instance
.createUserWithEmailAndPassword(email: _email, password: _password); function?
part of signup.dart file:
String _email, _password, _name;
final formkey = new GlobalKey<FormState>();`
Future<void> registered() async {
if (formkey.currentState.validate()) {
formkey.currentState.save();
try {
await FirebaseAuth.instance
.createUserWithEmailAndPassword(email: _email, password: _password);
FirebaseUser firebaseUser = await FirebaseAuth.instance.currentUser();
Firestore.instance
.collection("users")
.document(firebaseUser.uid)
.setData({"name": _name});
await firebaseUser.reload();
firebaseUser = await FirebaseAuth.instance.currentUser();
print(
"${firebaseUser.uid},${firebaseUser.email},${firebaseUser.displayName} , $_password this user has been created-----");
} catch (e) {
print("${e.message} message--------------------------------------");
}
} else {
print("somthing went wrong");
}
}
I have tried many way to do this but still i have no result
You are saving data in Firestore, and trying to get the name from Firebase Auth. Those are two services. Instead of trying to use firestore, what you could is,
FirebaseUser firebaseUser = await FirebaseAuth.instance.currentUser();
var userUpdateInfo = UserUpdateInfo();
userUpdateInfo.displayName = _name;
firebaseUser.updateProfile(userUpdateInfo);
await firebaseUser.reload();
firebaseUser = await FirebaseAuth.instance.currentUser();
After creating the account using the method .createUserWithEmailAndPassword pass the value of the user to another class by
final FirebaseAuth _auth = FirebaseAuth.instance;
//user object based on firebase
User _userFromFirebase(FirebaseUser user){
return user != null ? User(uid: user.uid):null;
}
Future loginWithEmailAndPass(String email,String password)async{
try{
AuthResult result = await _auth.signInWithEmailAndPassword(email: email, password: password);
FirebaseUser user = result.user;
return _userFromFirebase(user);
}catch(e){
print(e.toString());
return null;
}
}
Pass the value of user to a new class by creating a new dart file
class User{
final String uid;
User({this.uid});
}
Include that dart file in the home page for the user name.
Refer this tutorial for guidance.
https://youtu.be/Jy82t4IKJSQ?list=PL4cUxeGkcC9j--TKIdkb3ISfRbJeJYQwC
I have this function that use SignInWithGogle to Sign In/Up an user
void _signInWithGoogle() async {
final GoogleSignInAccount googleUser = await _googleSignIn.signIn();
final GoogleSignInAuthentication googleAuth =
await googleUser.authentication;
final AuthCredential credential = GoogleAuthProvider.getCredential(
accessToken: googleAuth.accessToken,
idToken: googleAuth.idToken,
);
final FirebaseUser user = (await _auth.signInWithCredential(credential)).user;
assert(user.email != null);
assert(user.displayName != null);
assert(!user.isAnonymous);
assert(await user.getIdToken() != null);
final FirebaseUser currentUser = await _auth.currentUser();
assert(user.uid == currentUser.uid);
print('user email here $user.email');
setState(() {
if (user != null) {
_success = true;
_userID = user.uid;
final userToSubmit = User(
email: user.email,
id: user.uid,
name: user.displayName,
owner: false,
favorites: null);
print('USER ID USER ID USER ID ${user.uid}');
DocumentReference dbRef =
Firestore.instance.collection('users').document(user.uid);
dbRef.get().then((value) {
print('VALUE EXISTS? ${value.exists} y VALUE $value');
value.exists ?
_goToHomeScreen(user)
:
dbRef
.collection('prf')
.document('profile')
.setData(userToSubmit.toJson())
.then(_goToHomeScreen(user));
});
} else {
_success = false;
}
});
}
The problem is that when the user logOut and then login it sets the new Data and the user lost everything they have like favorites and so on... I thought that checking if the document exists should resolve the problem, but despite the document is there exists returns false.
This is the piece of code I'm talking about
DocumentReference dbRef =
Firestore.instance.collection('users').document(user.uid);
dbRef.get().then((value) {
print('VALUE EXISTS? ${value.exists} y VALUE $value');
value.exists ?
_goToHomeScreen(user)
:
dbRef
.collection('prf')
.document('profile')
.setData(userToSubmit.toJson())
.then(_goToHomeScreen(user));
});
}
Why it returns false even if the user.uid and the document exists? What am I doing wrong?
The final solution I implemented is this:
FirebaseUser firebaseUser;
try {
firebaseUser = (await FirebaseAuth.instance.signInWithCredential(credential)).user;
} catch(e) {
print(e.toString());
} finally {
final userToSubmit = User(
email: firebaseUser.email,
id: firebaseUser.uid,
name: firebaseUser.displayName,
owner: false,
restauranteAdded: false);
DocumentReference dbRef =
Firestore.instance.collection('users').document(firebaseUser.uid).collection('nameOfTheCollection').document('documentName');
dbRef.get().then((data) {
data.exists ? _goToHomeScreen(user) :
_createUser();
});
This way I check if user document exists in my Firestore Database and if not it creates it.
There is a lot going on. In general, you're not updating any state object with the setState() method. setState is used to tell a widget that some state has changed--and it's called synchronously with the change, but here where you're just checking to see if a document exists and nothing is changing, it's not needed.
Also it doesn't appear that you're actually returning a user object at all, so this code as I read it will always return false.
You should remove setState here altogether (not needed for what you're doing)
Run a sign in method that returns the user object you want do do things with.
Access your db once you know you have a signed in user (i.e. w/ uid of signed in user)
Here is an option to try:
//Create a User class so that you don't have to call FireBase in your methods.
class User {
User({
#required this.uid,
this.email,
this.displayName,
});
final String uid;
final String email;//these are whatever you want
final String displayName;
}
//put sign in methods into an abstract class. Don't have to, but keeps code flexible if you don't stay with firebase
abstract class AuthBase {
//add in other signin methods as needed
Future<User> signInWithGoogle();
}
//Implement AuthBase in class Auth
class Auth implements AuthBase {
final FirebaseAuth _firebaseAuth = FirebaseAuth.instance;
//Get a User from Firebase User
User _userFromFirebase(FirebaseUser user) {
if (user == null) {
return null;
}
return User(
uid: user.uid,
displayName: user.displayName,
email: user.email,
);
}
//your signinWithGoogle method
Future<User> signInWithGoogle() async {
//where User is the class you've created
GoogleSignIn googleSignIn = GoogleSignIn();
GoogleSignInAccount googleUser = await googleSignIn.signIn();
if (googleUser != null) {
GoogleSignInAuthentication googleAuth = await googleUser.authentication;
if (googleAuth.idToken != null && googleAuth.accessToken != null) {
final authResult = await _firebaseAuth.signInWithCredential( //await your instance of FirebaseAuth
GoogleAuthProvider.getCredential(
idToken: googleAuth.idToken,
accessToken: googleAuth.accessToken,
),
);
return _userFromFirebase(authResult.user); //your signed in firebase user that you can do stuff with uid, email, displayname, etc.
} else {
throw PlatformException(
code: 'ERROR_MISSING_GOOGLE_AUTH_TOKEN',
message: '',
);
}
} else {
throw PlatformException(
code: 'ERROR_ABORTED_BY_USER',
message: '',
);
}
}
I'm new to Flutter and really, really new to firebase.
I'm trying to create a user via the createUserWithEmailAndPasswordMethod.
I've successfully created on, but I'm trying to improve it by allowing the user to enter the desired username and setting said username to the displayName attribute.
My code is as follows:
_createUser() async {
UserUpdateInfo updateInfo = UserUpdateInfo();
updateInfo.displayName = _usernameController.text;
FirebaseUser user = await _auth
.createUserWithEmailAndPassword(
email: _emailController.text,
password: _passwordController.text,
)
.then((user) {
user.updateProfile(updateInfo);
});
print('USERNAME IS: ${user.displayName}');
}
The problem is when I run the app it always throws this exception:
NoSuchMethodError: The getter 'displayName' was called on null.
Every time I debug the user variable keeps showing as null as well, even though the user is created and I can print the email and password!
I guess the problem is that Firebase user is null, but even if I move the print('USERNAME IS: ${user.displayName}'); to right after updateProfile the same happens.
Hope you guys can help!
Thanks.
You should not use await and then together. await is a substitute for then method.
_createUser() async {
await _auth
.createUserWithEmailAndPassword(
email: _emailController.text,
password: _passwordController.text,
)
FirebaseUser user = await _auth.currentUser();
UserUpdateInfo updateInfo = UserUpdateInfo();
updateInfo.displayName = _usernameController.text;
user.updateProfile(updateInfo);
print('USERNAME IS: ${user.displayName}');
}
So, what worked for me was this: I had to call the reload() method to get the new user information after the updateProfile(). After some changes the method looks like this:
_createUser() async {
UserUpdateInfo updateInfo = UserUpdateInfo();
updateInfo.displayName = _usernameController.text;
await _auth
.createUserWithEmailAndPassword(
email: _emailController.text,
password: _passwordController.text,
)
.then((user) async {
await user.updateProfile(updateInfo);
await user.reload();
FirebaseUser updatedUser = await _auth.currentUser();
print('USERNAME IS: ${updatedUser.displayName}');
Navigator.of(context).push(
MaterialPageRoute<Map>(
builder: (BuildContext context) {
return Posts(_googleSignIn, updatedUser);
},
),
);
}).catchError((error) {
print('Something Went Wrong: ${error.toString()}');
});
}
If someone is still searching, this is the working solution in 2021.
UserCredential userCred = await _auth.createUserWithEmailAndPassword(email, password);
await userCred.user.updateProfile(displayName: "Your Name");