Issue
I’m currently facing this error message at login, my registration function works fine. but can’t seem to figure out why my login keeps bringing this error. I would appreciate if I can be pointed to where my mistake is coming from.
void loginUser() async {
User user;
await _auth
.signInWithEmailAndPassword(email: email.text, password: password.text)
.then((value) {
setState(() {
loading = false;
});
return value;
}).catchError((error) {
Navigator.pop(context);
Get.defaultDialog(title: 'Error in Login');
});
if (user != null) {
readData(user).then((value) => Get.toNamed(homeRoute));
}
}
Future readData(User user) async {
FirebaseFirestore.instance
.collection('users')
.doc(user.uid)
.get()
.then((result) async {
await App.sharedPreferences.setString('uid', result.get('uid'));
await App.sharedPreferences.setString('email', result.get('email'));
await App.sharedPreferences.setString('fullname', result.get('fullname'));
await App.sharedPreferences.setString('bvn', result.get('bvn'));
});
}
Here’s my Registration function
void _registerUser() async {
User user;
await _auth
.createUserWithEmailAndPassword(
email: email.text, password: password.text)
.then((value) {
user = value.user;
}).catchError((error) {
Navigator.pop(context);
Get.defaultDialog(title: 'Error in registration');
});
if (user != null) {
saveToFirestore(user).then((value) => Get.toNamed(homeRoute));
}
}
Future saveToFirestore(User user) async {
FirebaseFirestore.instance.collection('users').doc(user.uid).set({
'uid': user.uid,
'fullname': fullname.text.trim(),
'email': user.email,
'bvn': bvn.text
});
await App.sharedPreferences.setString('uid', user.uid);
await App.sharedPreferences.setString('email', user.email);
await App.sharedPreferences.setString('fullname', fullname.text);
await App.sharedPreferences.setString('bvn', bvn.text);
}
Solution
Change
User user;
await _auth
to User user = await _auth....
And in your FireStore query, use
Future readData(User user) async {
FirebaseFirestore.instance
.collection('users')
.doc(user.user.uid) // instead of user.uid
.get()
Everywhere with user.uid change it to user.user.uid.
Answered By – Huthaifa Muayyad
Answer Checked By – Senaida (FlutterFixes Volunteer)