/// <summary>
/// PreparedPayment contacts the server with the payment request data, and returns a GET URL to that
/// payment. This is convenient for creating an order and then sending the URL e.g. in an email.
/// </summary>
/// <returns>PaymentLink</returns>
public Uri PreparePayment(String ipAddress)
{
IpAddress = ipAddress;
CalculateRequestValues();
var xmlBuilder = new HostedXmlBuilder();
string xml = xmlBuilder.GetXml(this);
var secretWord = CrOrderBuilder.GetConfig()
.GetSecretWord(PaymentType.HOSTED, CrOrderBuilder.GetCountryCode());
var sentMerchantId = CrOrderBuilder.GetConfig()
.GetMerchantId(PaymentType.HOSTED, CrOrderBuilder.GetCountryCode());
var payPageUrl = CrOrderBuilder.GetConfig()
.GetEndPoint(PaymentType.HOSTED);
var baseUrl = payPageUrl.Replace("/payment", "");
var hostedRequest = new HostedAdminRequest(xml, secretWord, sentMerchantId, baseUrl);
var targetAddress = baseUrl + "/rest/preparepayment";
var message = HostedAdminRequest.HostedAdminCall(targetAddress, hostedRequest).Message;
var messageDoc = new XmlDocument();
messageDoc.LoadXml(message);
var paymentId = messageDoc.SelectSingleNode("//id").InnerText;
return(new Uri(baseUrl + "/preparedpayment/" + paymentId));
}
