/// <summary>
/// ConfirmPayment: The method that calls SetExpressCheckout API, invoked from the
/// Billing Page EC placement
/// </summary>
/// <param name="token"></param>
/// <param ref name="retMsg"></param>
/// <returns></returns>
public bool ConfirmPayment(string finalPaymentAmount, string token, string PayerId, string currency, ref NVPCodec decoder, ref string retMsg)
{
if (bSandbox)
{
pendpointurl = "https://api-3t.sandbox.paypal.com/nvp";
}
NVPCodec encoder = new NVPCodec();
encoder["METHOD"] = "DoExpressCheckoutPayment";
encoder["TOKEN"] = token;
encoder["PAYMENTACTION"] = "Sale";
encoder["PAYERID"] = PayerId;
encoder["AMT"] = finalPaymentAmount;
encoder["CURRENCYCODE"] = currency;
string pStrrequestforNvp = encoder.Encode();
string pStresponsenvp = HttpCall(pStrrequestforNvp);
decoder = new NVPCodec();
decoder.Decode(pStresponsenvp);
string strAck = decoder["ACK"].ToLower();
if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
{
return true;
}
else
{
retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
"Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
"Desc2=" + decoder["L_LONGMESSAGE0"];
return false;
}
}
/// <summary>
/// ConfirmPayment: The method that calls SetExpressCheckout API, invoked from the
/// Billing Page EC placement
/// </summary>
/// <param name="token"></param>
/// <param ref name="retMsg"></param>
/// <returns></returns>
public bool ConfirmPayment(string finalPaymentAmount, string token, string PayerId, string currency, ref NVPCodec decoder, ref string retMsg)
{
if (bSandbox)
{
pendpointurl = "https://api-3t.sandbox.paypal.com/nvp";
}
NVPCodec encoder = new NVPCodec();
encoder["METHOD"] = "DoExpressCheckoutPayment";
encoder["TOKEN"] = token;
encoder["PAYMENTACTION"] = "Sale";
encoder["PAYERID"] = PayerId;
encoder["AMT"] = finalPaymentAmount;
encoder["CURRENCYCODE"] = currency;
string pStrrequestforNvp = encoder.Encode();
string pStresponsenvp = HttpCall(pStrrequestforNvp);
decoder = new NVPCodec();
decoder.Decode(pStresponsenvp);
string strAck = decoder["ACK"].ToLower();
if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
{
return(true);
}
else
{
retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
"Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
"Desc2=" + decoder["L_LONGMESSAGE0"];
return(false);
}
}
public bool ExpressCheckout(string name, string description, string price, string quantity, string currency, string email, ref string token, ref string retMsg)
{
string host = "www.paypal.com";
if (bSandbox)
{
pendpointurl = "https://api-3t.sandbox.paypal.com/nvp";
host = "www.sandbox.paypal.com";
}
NVPCodec encoder = new NVPCodec();
encoder["METHOD"] = "SetExpressCheckout";
encoder["RETURNURL"] = returnURL;
encoder["CANCELURL"] = cancelURL;
encoder["NOTIFYURL"] = ipnURL;
encoder["SOLUTIONTYPE"] = "Sole";
encoder["PAYMENTREQUEST_0_CUSTOM"] = email;
encoder["LANDINGPAGE"] = "Billing";
encoder["USERSELECTEDFUNDINGSOURCE"] = "CreditCard";
double dblQuantity = Convert.ToDouble(quantity);
double dblPrice = Convert.ToDouble(price);
double totalPrice = dblQuantity * dblPrice;
encoder["L_PAYMENTREQUEST_0_NAME0"] = name;
encoder["L_PAYMENTREQUEST_0_DESC0"] = description;
encoder["L_PAYMENTREQUEST_0_AMT0"] = price;
encoder["L_PAYMENTREQUEST_0_QTY0"] = quantity;
encoder["PAYMENTREQUEST_0_AMT"] = totalPrice.ToString();
encoder["PAYMENTREQUEST_0_ITEMAMT"] = totalPrice.ToString();
encoder["PAYMENTREQUEST_0_PAYMENTACTION"] = "SALE";
encoder["PAYMENTREQUEST_0_CURRENCYCODE"] = currency;
string pStrrequestforNvp = encoder.Encode();
string pStresponsenvp = HttpCall(pStrrequestforNvp);
NVPCodec decoder = new NVPCodec();
decoder.Decode(pStresponsenvp);
string strAck = decoder["ACK"].ToLower();
if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
{
token = decoder["TOKEN"];
string ECURL = "https://" + host + "/cgi-bin/webscr?cmd=_express-checkout" + "&token=" + token + "&useraction=COMMIT";
retMsg = ECURL;
return(true);
}
else
{
retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
"Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
"Desc2=" + decoder["L_LONGMESSAGE0"];
return(false);
}
}
/// <summary>
/// Credentials added to the NVP string
/// </summary>
/// <param name="profile"></param>
/// <returns></returns>
private string buildCredentialsNVPString()
{
NVPCodec codec = new NVPCodec();
if (!IsEmpty(APIUsername))
codec["USER"] = APIUsername;
if (!IsEmpty(APIPassword))
codec["PWD"] = APIPassword;
if (!IsEmpty(APISignature))
codec["SIGNATURE"] = APISignature;
if (!IsEmpty(Subject))
codec["SUBJECT"] = Subject;
codec["VERSION"] = "84.0";
return codec.Encode();
}
/// <summary>
/// GetShippingDetails: The method that calls SetExpressCheckout API, invoked from the
/// Billing Page EC placement
/// </summary>
/// <param name="token"></param>
/// <param ref name="retMsg"></param>
/// <returns></returns>
public bool GetDetails(string token, ref NVPCodec decoder, ref string retMsg)
{
if (bSandbox)
{
pendpointurl = "https://api-3t.sandbox.paypal.com/nvp";
}
NVPCodec encoder = new NVPCodec();
encoder["METHOD"] = "GetExpressCheckoutDetails";
encoder["TOKEN"] = token;
string pStrrequestforNvp = encoder.Encode();
string pStresponsenvp = HttpCall(pStrrequestforNvp);
decoder = new NVPCodec();
decoder.Decode(pStresponsenvp);
string strAck = decoder["ACK"].ToLower();
if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
{
return true;
}
else
{
retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
"Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
"Desc2=" + decoder["L_LONGMESSAGE0"];
return false;
}
}
public bool ExpressCheckout(string name, string description, string price, string quantity, string currency,string email, ref string token, ref string retMsg)
{
string host = "www.paypal.com";
if (bSandbox)
{
pendpointurl = "https://api-3t.sandbox.paypal.com/nvp";
host = "www.sandbox.paypal.com";
}
NVPCodec encoder = new NVPCodec();
encoder["METHOD"] = "SetExpressCheckout";
encoder["RETURNURL"] = returnURL;
encoder["CANCELURL"] = cancelURL;
encoder["NOTIFYURL"] = ipnURL;
encoder["SOLUTIONTYPE"] = "Sole";
encoder["PAYMENTREQUEST_0_CUSTOM"] = email;
encoder["LANDINGPAGE"] = "Billing";
encoder["USERSELECTEDFUNDINGSOURCE"] = "CreditCard";
double dblQuantity = Convert.ToDouble(quantity);
double dblPrice = Convert.ToDouble(price);
double totalPrice = dblQuantity * dblPrice;
encoder["L_PAYMENTREQUEST_0_NAME0"] = name;
encoder["L_PAYMENTREQUEST_0_DESC0"] = description;
encoder["L_PAYMENTREQUEST_0_AMT0"] = price;
encoder["L_PAYMENTREQUEST_0_QTY0"] = quantity;
encoder["PAYMENTREQUEST_0_AMT"] = totalPrice.ToString();
encoder["PAYMENTREQUEST_0_ITEMAMT"] = totalPrice.ToString();
encoder["PAYMENTREQUEST_0_PAYMENTACTION"] = "SALE";
encoder["PAYMENTREQUEST_0_CURRENCYCODE"] = currency;
string pStrrequestforNvp = encoder.Encode();
string pStresponsenvp = HttpCall(pStrrequestforNvp);
NVPCodec decoder = new NVPCodec();
decoder.Decode(pStresponsenvp);
string strAck = decoder["ACK"].ToLower();
if (strAck != null && (strAck == "success" || strAck == "successwithwarning"))
{
token = decoder["TOKEN"];
string ECURL = "https://" + host + "/cgi-bin/webscr?cmd=_express-checkout" + "&token=" + token + "&useraction=COMMIT";
retMsg = ECURL;
return true;
}
else
{
retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
"Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
"Desc2=" + decoder["L_LONGMESSAGE0"];
return false;
}
}
public ActionResult ThankYou()
{
NVPAPICaller PPAPICaller = new NVPAPICaller();
NVPCodec decoder = new NVPCodec();
string token = string.Empty;
string payerID = string.Empty;
string finalPaymentAmount = string.Empty;
string retMsg = string.Empty;
string currency = string.Empty;
string email = string.Empty;
string transactionId = string.Empty;
token = Session["token"].ToString();
var payPalFee = string.Empty;
AspNetUser userToUpdate = null;
//use the PayPal token to get the details of payment - this could include shipping details
bool ret = PPAPICaller.GetDetails(token, ref decoder, ref retMsg);
if (ret)
{
payerID = decoder["PayerID"];
token = decoder["token"];
finalPaymentAmount = decoder["PAYMENTREQUEST_0_AMT"];
currency = decoder["CURRENCYCODE"];
email = decoder["PAYMENTREQUEST_0_CUSTOM"];
transactionId = token;
payPalFee = "0"; //decoder["PAYMENTINFO_n_FEEAMT"];
// string Success= "Payment successful for - PayerID: " + payerID + "; Amount: " + finalPaymentAmount;
}
else
{
//error.LogError();
}
NVPCodec confirmdecoder = new NVPCodec();
//confirm that payment was taken
bool ret2 = PPAPICaller.ConfirmPayment(finalPaymentAmount, token, payerID, currency, ref confirmdecoder, ref retMsg);
if (ret2)
{
//if payment was taken do some back end processing to mark order as paid
//use token to work out which order to mark as paid
token = confirmdecoder["token"];
var txn = transactionId;
var amount = finalPaymentAmount;
userToUpdate = UserManager.FindByEmail(email);
if (userToUpdate != null)
{
userToUpdate.Package = 1;
userToUpdate.RegisterPayPalDate = DateTime.Now;
userToUpdate.RegisterPayPalTxnID = txn;
userToUpdate.PayPalAmount = double.Parse(amount);
userToUpdate.PayPalAmountAfterDeduct = double.Parse(amount) - double.Parse(payPalFee);
userToUpdate.PayPalMisc = "PayerID="+payerID;
}
var updateUserResult = UserManager.Update(userToUpdate);
}
else
{
//payment has not been successful - don't send goods!
}
PaypalPaymentModel oThankyouModel = new PaypalPaymentModel();
oThankyouModel.AmountPaid = userToUpdate.PayPalAmount.ToString();
oThankyouModel.TxnString = userToUpdate.RegisterPayPalTxnID;
return View(oThankyouModel);
}
