public async Task HandleAsync(JObject jObject, CancellationToken cancellationToken)
{
var @event = jObject.ToObject <CustomerCreatedEvent>();
var isnew = tracer.CurrentTransaction == null;
var transaction = isnew
? tracer.StartTransaction("CustomerCreatedEventHandler", "event-subscriber")
.WithLabel("data", jObject.ToString())
.WithLabel("event name", "CustomerCreatedEvent")
: tracer.CurrentTransaction;
logger.Information(@event);
var apiSpan = transaction.StartSpan($"{apis.Customer}/{@event.CustomerId}", ApiConstants.ActionQuery, subType: ApiConstants.SubtypeHttp);
var customer = await httpClient.GetAsync <Customer>($"{apis.Customer}/{@event.CustomerId}").ConfigureAwait(false);
apiSpan.SetLabel("Response", JObject.FromObject(customer).ToString());
apiSpan?.End();
logger.Information("customer service {api} {RequestMethod} {data}", apis.Customer, "GET", JObject.FromObject(customer).ToString());
await repository.NewAsync(customer, cancellationToken);
if (isnew)
{
transaction.End();
}
}
public async Task <IActionResult> NewAsync([FromBody] Order order)
{
var isnew = tracer.CurrentTransaction == null;
var transaction = isnew
? tracer.StartTransaction($"NewOrder", "post")
.WithLabel("Order: OrderId", order.Id.ToString())
.WithLabel("Order: Product", order.Product)
.WithLabel("Order: Quantity", order.Quantity.ToString())
.WithLabel("Order: Customer", order.CustomerId.ToString())
: tracer.CurrentTransaction;
if (order == default(Order))
{
return(BadRequest("Body empty or null"));
}
order.Id = Guid.NewGuid();
var customer = await customerRepository.GetByIdAsync(order.CustomerId, CancellationToken.None);
if (customer == default)
{
return(NotFound("Customer"));
}
await repository.NewAsync(order, CancellationToken.None);
messageProducer.SendMessage(new OrderCreatedEvent
{
OrderId = order.Id,
Product = order.Product,
Quantity = order.Quantity
});
var span = transaction.StartSpan($"{apis.Inventory}/{order.Product}", ApiConstants.ActionQuery, subType: ApiConstants.SubtypeHttp);
var availableQuantity = await httpClient.GetAsync <int>($"{apis.Inventory}/{order.Product}").ConfigureAwait(false);
span.SetLabel("Response", availableQuantity.ToString());
span?.End();
logger.LogInformation("inventory service {api} {RequestMethod} {data}", apis.Inventory, "GET", availableQuantity.ToString());
if (availableQuantity >= order.Quantity)
{
await repository.ProcessOrderAsync(order.Id, CancellationToken.None);
messageProducer.SendMessage(new OrderProcessedEvent
{
OrderId = order.Id,
Product = order.Product,
Quantity = order.Quantity
});
}
else
{
await repository.CancelOrderAsync(order.Id, CancellationToken.None);
messageProducer.SendMessage(new OrderCancelledEvent
{
OrderId = order.Id,
Product = order.Product
});
}
if (isnew)
{
transaction.End();
}
return(Ok());
}