public async void SendOrder(List <SaleItem> saleItems)
{
PointOfSaleBackEnd backEnd = new PointOfSaleBackEnd();
Console.WriteLine("FrontEnd: Started Async Work");
Task <VerifiedOrder> orderTask = backEnd.PlaceOrderAsync(saleItems);
Console.WriteLine("FrontEnd: Doing Other Work");
Thread.Sleep(1000);
Console.WriteLine("FronEnd: Retrieving Async Work");
VerifiedOrder orderInformation = await orderTask;
if (orderInformation != null)
{
Console.WriteLine($"Order Verfied: ID {orderInformation.OrderId}");
Console.WriteLine($"Order Verfied: Total ${orderInformation.OrderTotal}");
}
else
{
Console.WriteLine("Error Placing Order With Service");
}
}
public PointOfSaleFrontEnd()
{
_backEnd = new PointOfSaleBackEnd();
}