User1991482975 posted
Hi,
i followed this tutorial :
https://www.ittutorialswithexample.com/2018/03/paypal-payment-gateway-integration-in-aspnet.html
I need to improve this code :
Model
public static class PaypalConfiguration
{
//Variables for storing the clientID and clientSecret key
public readonly static string ClientId;
public readonly static string ClientSecret;
//Constructor
static PaypalConfiguration()
{
var config = GetConfig();
ClientId = config["clientId"];
ClientSecret = config["clientSecret"];
}
// getting properties from the web.config
public static Dictionary<string, string> GetConfig()
{
return PayPal.Api.ConfigManager.Instance.GetProperties();
}
private static string GetAccessToken()
{
// getting accesstocken from paypal
string accessToken = new OAuthTokenCredential
(ClientId, ClientSecret, GetConfig()).GetAccessToken();
return accessToken;
}
public static APIContext GetAPIContext()
{
// return apicontext object by invoking it with the accesstoken
APIContext apiContext = new APIContext(GetAccessToken());
apiContext.Config = GetConfig();
return apiContext;
}
}
Controller
public ActionResult PaymentWithPaypal(string Cancel = null)
{
//getting the apiContext
APIContext apiContext = PaypalConfiguration.GetAPIContext();
try
{
//A resource representing a Payer that funds a payment Payment Method as paypal
//Payer Id will be returned when payment proceeds or click to pay
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.
string baseURI = Request.Url.Scheme + "://" + Request.Url.Authority +
"/Home/PaymentWithPayPal?";
//here we are generating guid for storing the paymentID received in session
//which will be 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 createdPayment = this.CreatePayment(apiContext, baseURI + "guid=" + guid);
//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 function exectues after receving all parameters for the payment
var guid = Request.Params["guid"];
var executedPayment = ExecutePayment(apiContext, payerId, Session[guid] as string);
//If executed payment failed then we will show payment failure message to user
if (executedPayment.state.ToLower() != "approved")
{
return View("FailureView");
}
}
}
catch (Exception ex)
{
return View("FailureView");
}
//on successful payment, show success page to user.
return View("SuccessView");
}
private PayPal.Api.Payment payment;
private Payment ExecutePayment(APIContext apiContext, string payerId, string paymentId)
{
var paymentExecution = new PaymentExecution() { payer_id = payerId };
this.payment = new Payment() { id = paymentId };
return this.payment.Execute(apiContext, paymentExecution);
}
private Payment CreatePayment(APIContext apiContext, string redirectUrl)
{
//create itemlist and add item objects to it
var itemList = new ItemList() { items = new List<Item>() };
//Adding Item Details like name, currency, price etc
itemList.items.Add(new Item()
{
name = "Item Name comes here",
currency = "USD",
price = "1",
quantity = "1",
sku = "sku"
});
var payer = new Payer() { payment_method = "paypal" };
// Configure Redirect Urls here with RedirectUrls object
var redirUrls = new RedirectUrls()
{
cancel_url = redirectUrl + "&Cancel=true",
return_url = redirectUrl
};
// Adding Tax, shipping and Subtotal details
var details = new Details()
{
tax = "1",
shipping = "1",
subtotal = "1"
};
//Final amount with details
var amount = new Amount()
{
currency = "USD",
total = "3", // Total must be equal to sum of tax, shipping and subtotal.
details = details
};
var transactionList = new List<Transaction>();
// Adding description about the transaction
transactionList.Add(new Transaction()
{
description = "Transaction description",
invoice_number = "your generated invoice number", //Generate an Invoice No
amount = amount,
item_list = itemList
});
this.payment = new Payment()
{
intent = "sale",
payer = payer,
transactions = transactionList,
redirect_urls = redirUrls
};
// Create a payment using a APIContext
return this.payment.Create(apiContext);
}
i already had an paypal account, so i created a paypall app name in the paypal acocunt + activated my Sandbox account i got secret key..
(i do not know if i have to set live or not in orderd to get paiment..)
I already installed in my mvc project PayPal library from the nuget package manager.
I added in my web.config
<configSections>
<section name="paypal" type="PayPal.SDKConfigHandler, PayPal" />
</configSections>
<!-- PayPal SDK settings -->
<paypal>
<settings>
<add name="mode" value="sandbox" />
<add name="connectionTimeout" value="360000" />
<add name="requestRetries" value="1" />
<add name="clientId" value="XXXXXXXXX" />
<add name="clientSecret"XXXXXXXXX" />
</settings>
</paypal>
TILL HERE ALL WORKS FINE!
This tutorial works fine..
But i need :
1) Pass data via form to my "PaymentWithPaypal"
price
shipping
name of item
and quantity
How to improve?
2) Have access the SuccessView, only if the token is ok and customer really apid
3) This tutorial works with the sandbox test account...
someone knwos the step to go LIVE?
Thanks for your help
