Value of type 'AuthDataResult' has no member ‘uid’

Question

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 i

Answer 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
    }
  })
})