APITester.Program.TestSaleWithCreditCardPayment C# (CSharp) Метод

        static void TestSaleWithCreditCardPayment()
        {
            try
            {
                var api = new SalesAPI();

                var context = new pcAmerica.DesktopPOS.API.Client.SalesService.Context
                    {
                        CashierID = "100101",
                        StoreID = "1001",
                        StationID = "01"
                    };

                // StartNewInvoice - this also automatically locks an invoice so it can't be opened by a terminal
                var inv = api.StartNewInvoice(context, "ROB" + DateTime.Now.Second.ToString(), "XXOPEN TABS");
                Console.WriteLine(String.Format("Started new invoice with #: {0}", inv.InvoiceNumber));

                inv.LineItems.Add(new LineItem()
                {
                    ItemNumber = "Non_Inventory",
                    ItemName = "Hot dog",
                    Price = 1,
                    Quantity = 1,
                    State = EntityState.Added
                });
                inv = api.ModifyItems(context, inv.InvoiceNumber, inv.LineItems);
                Console.WriteLine(String.Format("ModifyItems ADDED item # 1, new invoice value: {0}", inv.GrandTotal));

                // SendToKitchen
                if (api.SendToKitchen(context, inv.InvoiceNumber))
                    Console.WriteLine("Invoice was printed in kitchen");
                else
                    Console.WriteLine("***ERROR*** Invoice was NOT printed in kitchen");

                if (api.SendToKitchen(context, inv.InvoiceNumber))
                    Console.WriteLine(
                        "Invoice was printed in kitchen, it should not have printed anything out the 2nd time");
                else
                    Console.WriteLine("***ERROR*** Invoice was NOT printed in kitchen");

                // ApplyCardPayment - applying remaining 1 dollar as a credit card
                var payResponse = api.ApplyCardPayment(context,
                    inv.InvoiceNumber,
                    -1,
                    new pcAmerica.DesktopPOS.API.Client.SalesService.CreditCardPaymentProcessingResponse()
                    {
                        Amount = inv.GrandTotal,
                        CardNumber = "4***********1",
                        ReferenceNumber = "123456",
                        Result = true,
                        TipAmount = 1,
                        TransactionNumber = 1234
                    }, -1);
                if (payResponse.Success)
                    Console.WriteLine(String.Format("Applied card payment, change due {0}", payResponse.ChangeAmount));
                else
                    Console.WriteLine("***ERROR*** Could not apply card payment");

                // EndInvoice
                if (api.EndInvoice(context, inv.InvoiceNumber))
                    Console.WriteLine("Ended invoice successfully");
                else
                    Console.WriteLine("***ERROR*** Could not end invoice");

                // PrintReceipt - providing -1 for the split check # when there are no split checks
                if (api.PrintReceipt(context, inv.InvoiceNumber, -1))
                    Console.WriteLine("Receipt was printed");
                else
                    Console.WriteLine("***ERROR*** Receive was NOT printed");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }
            finally
            {
                Console.WriteLine("PRESS ENTER TO CONTINUE...");
                Console.ReadLine();
            }
        }