extension UIViewController {

    func showAlert(title: String?, message: String?) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "Dismiss", style: .default, handler: nil))
        self.present(alert, animated: true, completion: nil)
    }

    func showErrorAlert(error: Error) {
        debugPrint("Error: \(error)")
        showAlert(title: "Error", message: error.localizedDescription)
    }

}