protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
var consumerHelper = new ConsumerWrapper("libraryreservations", _config);
_logger.LogInformation("The Service is running and waiting for reservations");
while (!stoppingToken.IsCancellationRequested)
{
var order = consumerHelper.ReadMessage <ReservationMessage>();
_logger.LogInformation($"Got a reservation for {order.For} for the items {order.Items}");
var numberOfItems = order.Items.Split(',').Count();
await Task.Delay(1000 *numberOfItems);
if (numberOfItems % 2 == 0)
{
await _httpService.MarkReservationAccepted(order);
_logger.LogInformation("\tApproved that order.");
}
else
{
await _httpService.MarkReservationRejected(order);
_logger.LogWarning("\tRejected that one!");
}
}
}
public async override Task <bool> Process(string message)
{
// read the message -
// 1. Deserialize the JSON into a class.
Logger.LogInformation($"Got the JSON from the Message Queue: {message}");
var request = JsonSerializer.Deserialize <ReservationModel>(message);
// 2. Apply business rules to processing the reservation
if (request.Books.Split(",").Length > 3)
{
// - Any reservation > 3 books gets cancelled. Otherwise, approved.
return(await HttpService.MarkReservationCancelled(request));
}
else
{
// 3. Post to the appropriate route on our API.
return(await HttpService.MarkReservationAccepted(request));
}
return(true); //if you did some error handling, and you had an error, return false. It will leave it on the Queue.
}
public async override Task <bool> Process(string message)
{
//1. Deserialize the message (JSON document)
var request = JsonSerializer.Deserialize <Reservation>(message);
Logger.LogInformation($"Got a reservation for {request.For}");
//2. Decide if it is approved or denied
var count = request.Books.Split(',').Length;
if (count % 2 == 0)
{
return(await Service.MarkReservationAccepted(request));
}
else
{
return(await Service.MarkReservationDenied(request));
}
//
return(true);
}
public override async Task <bool> Process(string message)
{
// 1. deserialize from the json into a .net object
var request = JsonSerializer.Deserialize <ReservationMessage>(message);
// 2. maybe log it so we can see it.
Logger.LogInformation($"Got a reservation for {request.For}");
// 3. do the business stuff. process the reservation.
// (reservations with an even nuber of books get approved, otherwise, they are denied)
var isOk = request.Books.Split(',').Count() % 2 == 0;
// 4. tell the api about it.
if (isOk)
{
return(await Service.MarkReservationAccepted(request));
}
else
{
return(await Service.MarkReservationDenied(request));
}
}