将经过身份验证的用户添加到 Firestore 'users'集合颤振

Question

我在向firestore 'users'集合添加经过身份验证的用户时卡住了。

Unhandled Exception: [cloud_firestore/not-found] Some requested document 
was not found.

用户通过Google登录:

class GoogleSignInProvider extends ChangeNotifier {
final GoogleSignIn _googleSignIn = GoogleSignIn();
GoogleSignInAccount _user;
GoogleSignInAccount get user => _user;
AuthService auth = AuthService();
Future googleSignIn(BuildContext context) async {
try {
final googleUser = await _googleSignIn.signIn();
if (googleUser == null) return;
_user = googleUser;
final googleAuth = await googleUser.authentication;
final AuthCredential credential = GoogleAuthProvider.credential(
idToken: googleAuth.idToken, accessToken: googleAuth.accessToken);
await FirebaseAuth.instance.signInWithCredential(credential);
} catch (e) {
print(e.toString());
}
final User currentUser = FirebaseAuth.instance.currentUser;
if (currentUser != null)
usersRef.add(currentUser.uid);
Navigator.of(context).pushReplacement(
CupertinoPageRoute(builder: (_) => TabScreen()));
notifyListeners();
}

但是，无论我如何尝试验证firebase id都不会添加到usersRef (firestore集合)中。我怎么修理它?

我的firestore规则是:

match /users/{userId}/{documents=**} {
allow read: if request.auth.uid != null;
allow write, update, create, delete: if isOwner(userId);
}
function isOwner(userId) {
return request.auth.uid == userId;
}

帮助非常感谢!

Answer 1

所以这解决了我的问题:

final User currentUser = FirebaseAuth.instance.currentUser;
if (currentUser != null)
await usersRef.doc(currentUser.uid).set({'email': 
user.email, 'username': user.displayName, 'photoUrl': 
user.photoURL});

我想，我想多了。

谢谢ppl的指导和帮助!

Answer 2

照做

Map data = {};
FirebaseFirestore.instance
.collection('usersCollection')
.doc(currentUser.uid)
.set(data);

代替usersRef.add(currentUser.uid);

当您有doc id时使用set，当您想要自动生成id时使用add。