public PingPongConnection(IBackgroundTaskInstance taskInstance)
{
// Take a service deferral so the service isn't terminated
serviceDeferral = taskInstance.GetDeferral();
taskInstance.Canceled += OnTaskCanceled;
var details = taskInstance.TriggerDetails as AppServiceTriggerDetails;
connection = details.AppServiceConnection;
// Listen for incoming app service requests
connection.RequestReceived += OnRequestReceived;
PingPong.NotifyAppServiceConnected(connection);
}
public static async void OnRequestReceived(AppServiceConnection sender, AppServiceRequestReceivedEventArgs args)
{
// Get a deferral so we can use an awaitable API to respond to the message
var messageDeferral = args.GetDeferral();
try
{
var result = await PingPong.HandleCommand(args.Request.Message);
await args.Request.SendResponseAsync(result);
}
finally
{
// Complete the message deferral so the platform knows we're done responding
messageDeferral.Complete();
}
}