/// <summary>
/// Starts a checkout operation and runs it to completion.
/// </summary>
public static async Task CheckoutAsync(ShoppingCart shoppingCart)
{
Uri merchantUri = new Uri("http://www.contoso.com");
PaymentMerchantInfo merchantInfo = new PaymentMerchantInfo(merchantUri);
PaymentOptions options = new PaymentOptions();
options.RequestShipping = true;
options.ShippingType = PaymentShippingType.Delivery;
options.RequestPayerEmail = PaymentOptionPresence.Optional;
options.RequestPayerName = PaymentOptionPresence.Required;
options.RequestPayerPhoneNumber = PaymentOptionPresence.Optional;
PaymentRequest request = new PaymentRequest(
CreatePaymentDetails(shoppingCart),
SupportedPaymentMethods,
merchantInfo,
options);
IAsyncOperation <PaymentRequestSubmitResult> submitOperation = null;
Action abortSubmitFunc = () =>
{
submitOperation.Cancel();
};
PaymentRequestChangedHandler changedHandler = (sender, args) =>
{
PaymentRequestChangedEventHandler(abortSubmitFunc, args, shoppingCart);
};
PaymentMediator mediator = new PaymentMediator();
submitOperation = mediator.SubmitPaymentRequestAsync(request, changedHandler);
PaymentRequestSubmitResult result = await submitOperation;
if (result.Status != PaymentRequestStatus.Succeeded)
{
string message = result.Status == PaymentRequestStatus.Canceled ?
"The payment was canceled." :
"The payment failed.";
MessageDialog failedMessageDialog = new MessageDialog(message);
await failedMessageDialog.ShowAsync();
return;
}
PaymentResponse response = result.Response;
PaymentToken token = response.PaymentToken;
bool paymentSucceeded = false;
switch (token.PaymentMethodId)
{
case BasicCardPaymentProtocol.PaymentMethodId:
BasicCardResponse basicCardResponse = BasicCardPaymentProtocol.ParseResponse(token.JsonDetails);
//
// TODO: Use data inside 'basicCardResponse' to collect payment.
//
paymentSucceeded = true;
break;
case MicrosoftPayProtocol.PaymentMethodId:
MicrosoftPayProtocolResponse microsoftPayResponse = MicrosoftPayProtocol.ParseResponse(token.JsonDetails);
switch (microsoftPayResponse.Format)
{
case "Stripe":
//
// TODO: Use data inside 'microsoftPayResponse.Token' to collect payment.
//
paymentSucceeded = true;
break;
case "Error":
paymentSucceeded = false;
break;
case "Invalid":
throw new Exception("The payment request was invalid.");
default:
throw new Exception("Unsupported payment gateway.");
}
break;
default:
await result.Response.CompleteAsync(PaymentRequestCompletionStatus.Unknown);
throw new Exception("Unsupported payment method ID.");
}
await result.Response.CompleteAsync(paymentSucceeded?PaymentRequestCompletionStatus.Succeeded : PaymentRequestCompletionStatus.Failed);
string completionMessage = paymentSucceeded ?
"The payment succeeded." :
"Unable to process the payment.";
MessageDialog messageDialog = new MessageDialog(completionMessage);
await messageDialog.ShowAsync();
}
private static BasicCardResponse ParseBasicCardResponse(JsonReader jsonReader)
{
BasicCardResponse result = new BasicCardResponse();
while (jsonReader.Read())
{
switch (jsonReader.TokenType)
{
case JsonToken.PropertyName:
string propertyName = (string)jsonReader.Value;
switch (propertyName)
{
case "cardholderName":
result.CardholderName = jsonReader.ReadAsString();
break;
case "cardNumber":
result.CardNumber = jsonReader.ReadAsString();
break;
case "expiryMonth":
result.ExpiryMonth = jsonReader.ReadAsString();
break;
case "expiryYear":
result.ExpiryYear = jsonReader.ReadAsString();
break;
case "cardSecurityCode":
result.CardSecurityCode = jsonReader.ReadAsString();
break;
case "billingAddress":
jsonReader.Read();
if (jsonReader.TokenType != JsonToken.StartObject)
{
throw new BasicCardParseResponseException("Property 'billingAddress' must have value that is an object type.");
}
result.BillingAddress = ParsePaymentAddress(jsonReader);
break;
default:
// Ignore extra data.
jsonReader.Read(); // goto value
jsonReader.Skip(); // skip value
break;
}
break;
case JsonToken.EndObject:
return(result);
case JsonToken.Comment:
// Do nothing
break;
default:
throw new BasicCardParseResponseException("Incorrect JSON format.");
}
}
throw new BasicCardParseResponseException("Unexpected end of file.");
}
