问题
I am trying to access a user's uid in Firebase Authentication. I created a createUser completion block in my code and at the end of the block I want to check for the user in which I named firUser. When I try to add firUser.uid in my User I get the error message
"Value of type 'AuthDataResult' has no member ‘uid’"
Below is a copy of the code I wrote hopefully some one can help me.
Auth.auth().createUser(withEmail: email, password: password, completion: { (firUser, error) in
if error != nil {
// report error
} else if let firUser = firUser {
let newUser = User(uid: firUser.uid, username: username, fullName: fullName, bio: "", website: "", follows: [], followedBy: [], profileImage: self.profileImage)
newUser.save(completion: { (error) in
if error != nil {
// report
} else {
// Login User
Auth.auth().signIn(withEmail: email, password: password, completion: { (firUser, error) in
if let error = error {
// report error
print(error)
} else {
self.dismiss(animated: true, completion: nil)
}
})
}
})
}
})
回答1:
According to the guide, when using .createUser,
If the new account was successfully created, the user is signed in, and you can get the user's account data from the result object that's passed to the callback method.
Notice in the sample, you get back authResult, not a User object. authResult contains some information, including the User. You can get to the User using authResult.user.
In addition, when calling the method, if successful, the user is already signed in, so there's no reason to sign them in again. I changed the parameter name to authResult from the sample to help eliminate some of the confusion.
Auth.auth().createUser(withEmail: email, password: password, completion: { authResult, error in
if let error = error {
// report error
return
}
guard let authResult = authResult else { return }
let firUser = authResult.user
let newUser = User(uid: firUser.uid, username: username, fullName: fullName, bio: "", website: "", follows: [], followedBy: [], profileImage: self.profileImage)
newUser.save(completion: { (error) in
if let error = error {
// report
} else {
// not sure what you need to do here anymore since the user is already signed in
}
})
})
来源：https://stackoverflow.com/questions/51409307/value-of-type-authdataresult-has-no-member-uid