public override Task <CancelOrderResponse> CancelOrder(CancelOrderRequest request, grpc::ServerCallContext context)
{
Console.WriteLine("Handling Order cancellation request");
var result = new CancelOrderResponse();
try
{
var exists = orderManagementClient.OrderExists(new GetOrderRequest {
OrderID = request.OrderID
});
if (!exists.Exists)
{
result.Canceled = false;
return(Task.FromResult(result));
}
var originalOrder = orderManagementClient.GetOrder(new GetOrderRequest {
OrderID = request.OrderID
});
var evt = new OrderCanceledEvent
{
OrderID = request.OrderID,
UserID = request.UserID,
CreatedOn = (ulong)DateTime.UtcNow.Ticks,
ActivityID = Guid.NewGuid().ToString(),
};
if (eventEmitter.EmitOrderCanceledEvent(evt))
{
result.ConfirmationCode = Guid.NewGuid().ToString();
result.Canceled = true;
foreach (var li in originalOrder.LineItems)
{
eventEmitter.EmitInventoryReleasedEvent(new InventoryReleasedEvent
{
SKU = li.SKU,
ReleasedOn = (ulong)DateTime.UtcNow.Ticks,
Quantity = li.Quantity,
OrderID = request.OrderID,
UserID = request.UserID,
EventID = Guid.NewGuid().ToString()
});
}
}
else
{
result.Canceled = false;
}
return(Task.FromResult(result));
}
catch (Exception ex)
{
Console.WriteLine($"Failed to handle order cancellation {ex.ToString()}");
result.Canceled = false;
return(Task.FromResult(result));
}
}
public override Task <CancelOrderResponse> CancelOrder(CancelOrderRequest request, grpc::ServerCallContext context)
{
logger.LogInformation("Handling Order cancellation request");
var result = new CancelOrderResponse();
try
{
var agg = new OrderAggregate(request.OrderID);
// TODO: load aggregate with order events
var exists = orderManagementClient.OrderExists(new GetOrderRequest {
OrderID = request.OrderID
});
if (!exists.Exists)
{
result.Canceled = false;
return(Task.FromResult(result));
}
var originalOrder = orderManagementClient.GetOrder(new GetOrderRequest {
OrderID = request.OrderID
});
var productAggregates = GetProductAggregates(originalOrder.LineItems.ToArray());
IList <DomainEvent> evts = agg.Cancel(request.UserID, productAggregates);
foreach (var evt in evts)
{
this.eventEmitter.Emit(evt);
}
result.Canceled = true;
result.ConfirmationCode = Guid.NewGuid().ToString(); // unused
return(Task.FromResult(result));
}
catch (Exception ex)
{
logger.LogError(ex, "Failed to cancel order");
result.Canceled = false;
return(Task.FromResult(result));
}
}