/// <summary>Attempts to debit the specified amount from the supplied payment card.</summary>
/// <remarks>Because the SagePay gateway requires a shopping basket, this overload will create
/// a simple basket containing a single line item whose description is auto-generated from the
/// supplied order details.</remarks>
public PaymentResponse Purchase(string merchantReference, Money amount, PaymentCard card)
{
var data = MakePostData();
data.Add("TxType", "PAYMENT");
data.Add("VendorTxCode", merchantReference);
data.Add("Amount", amount.ToString("0.00"));
data.Add("Currency", amount.Currency.Iso3LetterCode);
data.Add("CardHolder", card.CardHolder);
data.Add("CardNumber", card.CardNumber);
data.Add("CardType", TranslateCardType(card.CardType));
data.Add("ExpiryDate", card.ExpiryDate.ToString());
data.Add("Basket", CreateBasketString(merchantReference, amount));
data.Add("Description", "DUMMY DESCRIPTION");
var postData = FormatPostData(data);
var uri = postUris[this.mode];
var httpResponse = http.Post(uri, postData);
var response = this.ParseResponse(httpResponse);
return (response);
}
private string BuildDirectPaymentRequestMessage(PaymentCard card, Money amount, string paymentAction)
{
var pairs = new Dictionary<string, string> {
{"VERSION", this.environment.Version},
{"SIGNATURE", this.environment.Signature},
{"USER", this.environment.Username},
{"PWD", this.environment.Password},
{"METHOD", "DoDirectPayment"}, //Required
{"PAYMENTACTION", paymentAction}, //Other option is Authorization. Use when we do Auth and capture.
{"IPADDRESS", "192.168.1.1"}, //TODO Required for fraud purposes.
{"AMT", amount.ToString("0.00")},
{"CREDITCARDTYPE", CardTypeToPayPalCardStringMap[card.CardType]},
{"ACCT", card.CardNumber},
{"EXPDATE", card.ExpiryDate.TwoDigitMonth + card.ExpiryDate.Year},
{"CVV2", card.CV2},
//TODO billing address data for PayPal.
{"FIRSTNAME", "Bob"},
{"LASTNAME", "Le Builder"},
{"STREET", "1972 Toytown"},
{"CITY", "London"},
{"STATE", "London"},
{"ZIP", "N1 3JS"},
//TODO check how values for currency relate to PayPal currency codes
//https://cms.paypal.com/uk/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_api_nvp_country_codes
{"COUNTRYCODE", "GB"}, //TODO
{"CURRENCYCODE", amount.Currency.Iso3LetterCode}
};
var values =
pairs.Select(pair => String.Format("{0}={1}", pair.Key, HttpUtility.UrlEncode(pair.Value)));
return (String.Join("&", values.ToArray()));
}