BusinessLogic.Logic.Users.FirstTimeAuthenticator.GetCallbackUrlFromConfig C# (CSharp) Метод

        private string GetCallbackUrlFromConfig()
        {
            string callbackUrl;
            try
            {
                callbackUrl = this.configurationManager.AppSettings.Get(APP_KEY_EMAIL_CONFIRMATION_CALLBACK_URL);
            }
            catch (Exception)
            {
                throw new ConfigurationErrorsException(
                    string.Format("Missing app setting with key: {0}", APP_KEY_EMAIL_CONFIRMATION_CALLBACK_URL));
            }
            return callbackUrl;
        }