sending a notification on a user’s device whenever a new product is entered into the application

static void ReceiveMessageAndSendNotification(string connectionString)
{
  string qlabshubConnectionString = CloudConfigurationManager.GetSetting
       ("Microsoft.NotificationHub.ConnectionString")
       
  NotificationHubClient hub = NotificationHubClient.CreateClientFromConnectionString
       (qlabshubConnectionString, "enterprisepushservicehub");
       
       BrokeredMessage message = Client.Receive();
       var toastMessage = @"<toast><visual><binding template=""ToastText01""><text id=""1"">
       {messagepayload}</text></binding></visual></toast>";
       SendNotificationAsync(toastMessage);
       
}
static async void SendNotificationAsync(string message)
{
       await hub.SendWindowsNativeNotificationAsync(message);
}