public ActionResult PaymentWithPaypal()
{
try
{
string payerId = Request.Params["PayerID"];
if (string.IsNullOrEmpty(payerId))
{
//this section will be executed first because PayerID doesn't exist
//it is returned by the create function call of the payment class
// Creating a payment
// baseURL is the url on which paypal sendsback the data.
// So we have provided URL of this controller only
string baseURI = Request.Url.Scheme + "://" + Request.Url.Authority +
"/Carts/PaymentWithPayPal?";
//guid we are generating for storing the paymentID received in session
//after calling the create function and it is used in the payment execution
var guid = Convert.ToString((new Random()).Next(100000));
//CreatePayment function gives us the payment approval url
//on which payer is redirected for paypal account payment
var productList = (List <Cart>)Session["CartItems"];
var createdPayment = PaymentDataService.CreatePayment(apiContext, baseURI + "guid=" + guid, productList);
//get links returned from paypal in response to Create function call
var links = createdPayment.links.GetEnumerator();
string paypalRedirectUrl = null;
while (links.MoveNext())
{
Links lnk = links.Current;
if (lnk.rel.ToLower().Trim().Equals("approval_url"))
{
//saving the payapalredirect URL to which user will be redirected for payment
paypalRedirectUrl = lnk.href;
}
}
// saving the paymentID in the key guid
Session.Add(guid, createdPayment.id);
return(Redirect(paypalRedirectUrl));
}
else
{
// This section is executed when we have received all the payments parameters
// from the previous call to the function Create
// Executing a payment
var guid = Request.Params["guid"];
var executedPayment = PaymentDataService.ExecutePayment(apiContext, payerId, Session[guid] as string);
//Save Customer
PaymentDataService.SaveCustomerInfo(executedPayment, _userID);
//Mark cartitems as paid
var cartItems = _cartDataService.GetCartItems(_userID);
_cartDataService.UpdateCartItems(cartItems);
//Save Successful Order
PaymentDataService.SaveOrder(executedPayment, _userID);
if (executedPayment.state.ToLower() != "approved")
{
return(View("Not_Approved"));
}
}
}
catch (Exception ex)
{
var error = ex;// Logger.log("Error" + ex.Message);
return(View("FailureView"));
}
return(View("Successful_Payment"));
}
public PaymentController(PaymentDataService dataService)
{
_paymentDS = dataService;
}