/// <summary>
/// Validates a successful response.
/// </summary>
/// <param name="invoice">
/// The invoice.
/// </param>
/// <param name="payment">
/// The payment.
/// </param>
/// <param name="token">
/// The token.
/// </param>
/// <param name="payerId">
/// The payer id.
/// </param>
/// <param name="record">
/// The record.
/// </param>
/// <returns>
/// The <see cref="ExpressCheckoutResponse"/>.
/// </returns>
/// <remarks>
/// PayPal returns to the success URL even if the payment was declined. e.g. The success URL represents a successful transaction
/// not a successful payment so we need to do another request to verify the payment was completed and get additional information
/// such as the transaction id so we can do refunds etc.
/// </remarks>
internal PayPalExpressTransactionRecord Authorize(IInvoice invoice, IPayment payment, string token, string payerId, PayPalExpressTransactionRecord record)
{
// Now we have to get the transaction details for the successful payment
ExpressCheckoutResponse result = null;
try
{
// do authorization
var service = GetPayPalService();
var doAuthorizationResponse = service.DoAuthorization(new DoAuthorizationReq
{
DoAuthorizationRequest = new DoAuthorizationRequestType
{
TransactionID = record.Data.CheckoutPaymentTransactionId,
Amount = new BasicAmountType(PayPalApiHelper.GetPayPalCurrencyCode(record.Data.CurrencyId), record.Data.AuthorizedAmount)
}
});
result = _responseFactory.Build(doAuthorizationResponse, token);
if (result.Success())
{
record.Data.Authorized = true;
record.Data.AuthorizationTransactionId = doAuthorizationResponse.TransactionID;
}
}
catch (Exception ex)
{
result = _responseFactory.Build(ex);
}
record.DoAuthorization = result;
return(record);
}
/// <summary>
/// Builds the <see cref="PaymentDetailsItemType"/>.
/// </summary>
/// <param name="invoice">
/// The invoice.
/// </param>
/// <param name="actionCode">
/// The <see cref="PaymentActionCodeType"/>.
/// </param>
/// <returns>
/// The <see cref="PaymentDetailsType"/>.
/// </returns>
public PaymentDetailsType Build(IInvoice invoice, PaymentActionCodeType actionCode)
{
// Get the decimal configuration for the current currency
var currencyCodeType = PayPalApiHelper.GetPayPalCurrencyCode(invoice.CurrencyCode);
var basicAmountFactory = new PayPalBasicAmountTypeFactory(currencyCodeType);
// Get the tax total
var itemTotal = basicAmountFactory.Build(invoice.TotalItemPrice());
var shippingTotal = basicAmountFactory.Build(invoice.TotalShipping());
var taxTotal = basicAmountFactory.Build(invoice.TotalTax());
var invoiceTotal = basicAmountFactory.Build(invoice.Total);
var items = BuildPaymentDetailsItemTypes(invoice.ProductLineItems(), basicAmountFactory);
var paymentDetails = new PaymentDetailsType
{
PaymentDetailsItem = items.ToList(),
ItemTotal = itemTotal,
TaxTotal = taxTotal,
ShippingTotal = shippingTotal,
OrderTotal = invoiceTotal,
PaymentAction = actionCode,
InvoiceID = invoice.PrefixedInvoiceNumber()
};
// ShipToAddress
if (invoice.ShippingLineItems().Any())
{
var addressTypeFactory = new PayPalAddressTypeFactory();
paymentDetails.ShipToAddress = addressTypeFactory.Build(invoice.GetShippingAddresses().FirstOrDefault());
}
return(paymentDetails);
}
/// <summary>
/// Refunds or partially refunds a payment.
/// </summary>
/// <param name="invoice">
/// The invoice.
/// </param>
/// <param name="payment">
/// The payment.
/// </param>
/// <param name="amount">
/// The amount of the refund.
/// </param>
/// <returns>
/// The <see cref="PayPalExpressTransactionRecord"/>.
/// </returns>
public ExpressCheckoutResponse Refund(IInvoice invoice, IPayment payment, decimal amount)
{
var record = payment.GetPayPalTransactionRecord();
// Ensure the currency code
if (record.Data.CurrencyCode.IsNullOrWhiteSpace())
{
var ex = new PayPalApiException("CurrencyCode was not found in payment extended data PayPal transaction data record. Cannot perform refund.");
return(_responseFactory.Build(ex));
}
// Ensure the transaction id
if (record.Data.CaptureTransactionId.IsNullOrWhiteSpace())
{
var ex = new PayPalApiException("CaptureTransactionId was not found in payment extended data PayPal transaction data record. Cannot perform refund.");
return(_responseFactory.Build(ex));
}
// Get the decimal configuration for the current currency
var currencyCodeType = PayPalApiHelper.GetPayPalCurrencyCode(record.Data.CurrencyCode);
var basicAmountFactory = new PayPalBasicAmountTypeFactory(currencyCodeType);
ExpressCheckoutResponse result = null;
if (amount > payment.Amount)
{
amount = payment.Amount;
}
try
{
var request = new RefundTransactionRequestType
{
InvoiceID = invoice.PrefixedInvoiceNumber(),
PayerID = record.Data.PayerId,
RefundSource = RefundSourceCodeType.DEFAULT,
Version = record.DoCapture.Version,
TransactionID = record.Data.CaptureTransactionId,
Amount = basicAmountFactory.Build(amount)
};
var wrapper = new RefundTransactionReq {
RefundTransactionRequest = request
};
var refundTransactionResponse = GetPayPalService().RefundTransaction(wrapper);
result = _responseFactory.Build(refundTransactionResponse, record.Data.Token);
}
catch (Exception ex)
{
result = _responseFactory.Build(ex);
}
return(result);
}
/// <summary>
/// The capture success.
/// </summary>
/// <param name="invoice">
/// The invoice.
/// </param>
/// <param name="payment">
/// The payment.
/// </param>
/// <param name="amount">
/// The amount.
/// </param>
/// <param name="isPartialPayment">
/// The is partial payment.
/// </param>
/// <returns>
/// The <see cref="ExpressCheckoutResponse"/>.
/// </returns>
public PayPalExpressTransactionRecord Capture(IInvoice invoice, IPayment payment, decimal amount, bool isPartialPayment)
{
// Get the transaction record
var record = payment.GetPayPalTransactionRecord();
ExpressCheckoutResponse result = null;
try
{
var amountFactory = new PayPalBasicAmountTypeFactory(PayPalApiHelper.GetPayPalCurrencyCode(invoice.CurrencyCode));
var authorizationId = record.Data.AuthorizationTransactionId;
// do express checkout
var request = new DoCaptureRequestType()
{
AuthorizationID = authorizationId,
Amount = amountFactory.Build(amount),
CompleteType = isPartialPayment ? CompleteCodeType.NOTCOMPLETE : CompleteCodeType.COMPLETE
};
var doCaptureReq = new DoCaptureReq()
{
DoCaptureRequest = request
};
var service = GetPayPalService();
var doCaptureResponse = service.DoCapture(doCaptureReq);
result = _responseFactory.Build(doCaptureResponse, record.Data.Token);
if (result.Success())
{
var transactionId = doCaptureResponse.DoCaptureResponseDetails.PaymentInfo.TransactionID;
record.Data.CaptureTransactionId = transactionId;
}
}
catch (Exception ex)
{
result = _responseFactory.Build(ex);
}
record.DoCapture = result;
record.Success = result.Success();
return(record);
}
