CODEWITHSUNDEEP
swiftfirebasefirebase-authentication
Jkrist
Jkrist

Reputation: 817

How to change email address in Firebase?

I have some problems with changing email address in firebase authentication. My code looks like this now:

func changeEmail(withEmail email: String, completion: @escaping ((Bool) -> Void)) {
    guard let currentUser = Auth.auth().currentUser, let email = mail else { return }
    currentUser.updateEmail(to: email) { [weak self]
        error in
        guard let self = self else { return }
        let title: String
        let message: String
        if let error = error {
            title = "alert.error.title".localized()
            message = error.localizedDescription
        } else {
            title = email
            message = "auth.confirm.email.popup".localized()
            currentUser.sendEmailVerification()
        }
        self.navigator.showAlert(title: title,
                                 message: message,
                                 bottomLeftTitle: "general.got.it".localized(),
                                 bottomLeftHandler: { completion(error == nil)
        })
    }
}

So it is okey, and working, and user can actually change email.

But problem occurs when user stayed too long and needs to re-login. Everyone knows that it is disturbing user experience in app.

Auth.auth().reload() //not working in this situation.

So how to change email, without asking user to logout and login again?

Upvotes: 1

Views: 284

Answers (1)

Simon
Simon

Reputation: 1850

There is a reauthenticate method exactly for this purpose. https://firebase.google.com/docs/auth/ios/manage-users#re-authenticate_a_user

What you need to do is ask the user for its login credentials again. No logout - login needed.

Possible code for that:

if (self.newPassword == self.newPasswordConfirm) && (!(self.newPassword.isEmpty) || !(self.newUserName.isEmpty)) {
    reauthenticate(email: self.accountEmail, password: self.oldPassword) { isSucceeded in
        //Successfully authenticated
        if isSucceeded == true {
            if !self.newUserName.isEmpty {
                // update username
            }
            
            Auth.auth().currentUser?.updatePassword(to: self.newPassword) { (error) in
                // Alert user that it didn't work
            }
            
            self.editProfile.toggle()
        }
        // Failed to reauthenticate
        else if isSucceeded == false {
            // Alert User
        }
    }
}

Upvotes: 2

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