“Value of type 'AuthDataResult' has no member 'uid'” error

Question

Can someone help me about this issue? The first error was \"value of type \'authdataresult\' has no member \'uid\'\".

Auth.auth()?.signIn(withEmail: email, p         


        

Answer 1

guard let uid = user?.user.uid else {return}
let ref = Database.database().reference(fromURL: "")
let usersReference = ref.child("users").child(uid)

Answer 2

The new Auth.auth().signIn and Auth.auth().createUser methods use a datatype of AuthDataResult? instead of User?

The old callback was user of type: User?

Auth.auth().signIn(withEmail: email, password: password, completion: { (user: User?, error) in

You would access properties directly on the callback user object such as:

if error == nil {
    if let user = user {
        self.userUid = user.uid
        // user.email for the email address in firebase
    }
}

The new callback is authDataResult of type: AuthDataResult?

Auth.auth().signIn(withEmail: email, password: password, completion: { (authDataResult: AuthDataResult?, error) in

Now you access properties directly on the callback authDataResult object such as:

if error == nil {
    if let authDataResult = authDataResult {
        self.userUid = authDataResult.user.uid
        // authDataResult.user.email for the email address in firebase
    }
}

Basically the user object from the old way is now a property on the authDataResult object and you can get the uid through there:

authDataResult.user.uid

Firebase's info about AuthDataResult

Answer 3

It seems that Google has made some changes to Firebase Auth with the 5.0.0 update. This worked for me:

self.userUid = user.user.uid

I'm not sure what was the point of the change but it still works exactly the same.