Updated approach to Reauthenticate a user

Question

I\'ve been looking in the Firebase Documentation and found the method to reauthenticate a user shown below.

let user = Auth.auth().currentUser
var credential         


        

Answer 1

let user = Auth.auth().currentUser
var credential: AuthCredential
user?.reauthenticateAndRetrieveData(with: credential, completion: {(authResult, error) in
            if let error = error {
                // An error happened.
            }else{
                // User re-authenticated.
            }
        })

You are getting error because you haven't initialize credential You have to initialize AuthCredential first

These credential can vary from

EmailAuthCredential

FacebookAuthCredential

GithubAuthCredential

GoogleAuthCredential

PhoneAuthCredential

PlayGamesAuthCredential

TwitterAuthCredential

Initiziale the variable according to your authentication method e.g. if you have chosen email you can use like

var credential: AuthCredential = EmailAuthProvider.credential(withEmail: "email", password: "pass")