Re-authenticating User Credentials Swift

Question

I wish to re-authenticate a user prior to allowing them to change their login information. However, due to the recent Firebase update, I found the documentation rather unhel

Answer 1

In Swift 4 and latest firebase 4 the names have changed a bit, but the principle still remains. For your convenience:

    let eMail = EmailAuthProvider.credential(withEmail: "some@email.com", password: "somepassword")
    let fb = FacebookAuthProvider.credential(withAccessToken: "xxx")
    let g = GoogleAuthProvider.credential(withIDToken: "xxx", accessToken: "xxx")
    ...

    Auth.auth().currentUser?.reauthenticate(with: eMail, completion: {
        [weak self]
        (error) in
        ...
    })