protected T ApiCall <T>(PaypalOperation operation)
where T : IPayPalApiModel, new()
{
// validating arguments
if (operation == null)
{
throw new ArgumentNullException("operation");
}
if (operation.Credential == null)
{
throw new Exception("Must fill in the Credential property of operation.");
}
// informations to build request
var url = this.EndPoints.GetApiEndPoint(operation.Credential.CredentialType, ApiProtocol.NVP);
var nvp = operation.ToNameValueCollection();
byte[] byteArray = GetPostData(nvp);
// building request with the above informations
var webRequest = (HttpWebRequest)WebRequest.Create(url);
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = byteArray.Length;
// sending data
using (Stream requestStream = webRequest.GetRequestStream())
{
requestStream.Write(byteArray, 0, byteArray.Length);
}
// receiving data
using (WebResponse webResponse = webRequest.GetResponse())
using (Stream responseStream = webResponse.GetResponseStream())
using (StreamReader reader = new StreamReader(responseStream))
{
string responseFromServer = reader.ReadToEnd();
// creating result object from response
var nvc = HttpUtility.ParseQueryString(responseFromServer);
var result = new T();
result.Api = this;
nvc.LoadToPayPalModelObject(result);
return(result);
}
}
public void SetupCredential(PaypalOperation operation)
{
var user = this.configurations.PayPalUser;
var password = this.configurations.PayPalPassword;
var signature = this.configurations.PayPalSignature;
if (!string.IsNullOrWhiteSpace(user) && !string.IsNullOrWhiteSpace(password) && !string.IsNullOrWhiteSpace(signature))
{
operation.Credential = new PayPalSignatureCredential
{
ApiUserName = user,
ApiPassword = password,
ApiSignature = signature,
}
}
;
if (operation.Credential == null)
{
throw new Exception("Unsupported credential configuration.");
}
}
