User Management #firebase

firebase-user.swift

// App Delegate
import Firebase

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool
	{
        FirebaseApp.configure()
        return true
	}

// Register User Controller
import Firebase
	// Register User
    @IBAction func registerPressed(_ sender: UIButton) {
        errorLabel.text = ""
        if let email = emailTextfield.text, let password = passwordTextfield.text {
            Auth.auth().createUser(withEmail: email, password: password) { authResult, error in
                if let err = error {
                    self.errorLabel.text = err.localizedDescription
                } else {
                    // Navigate to the chat view controller
                    self.performSegue(withIdentifier: "RegisterToChat", sender: self)
                }
            }
        }
    }

// Login User Controller
import Firebase
	// Login User
    @IBAction func loginPressed(_ sender: UIButton) {
        if let email = emailTextfield.text, let password = passwordTextfield.text {
            Auth.auth().signIn(withEmail: email, password: password) { authResult, error in
                if let err = error {
                    print(err)
                } else {
                    self.performSegue(withIdentifier: "LoginToChat", sender: self)
                }
            }
        }
    }