Paypal Website Payments Pro Integration Using C#?
Nov 27, 2010I need to implement checkout process using paypal website payments pro. I need solution/sample code for website payment pro with ASP.net/C#.
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Similar Messages:
Put The Simplest PayPal Button / "Website Payments Standard Integration Guide"?
Jan 12, 2010I am completing a website on which a single object is sold. I want to put the simplest PayPal button. I created the code of the button using the instructions on pp19 to 21 of "Website Payments Standard Integration Guide".
The code that was created was :
<code>
<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="123456789">
<input type="image" src="https://www.paypal.com/en_US/GB/i/btn/btn_buynowCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online.">
<img alt="" border="0" src="https://www.paypal.com/en_GB/i/scr/pixel.gif" width="1" height="1">
</form>
</code>
(I have altered the value value just for this post)
The HTML of the payment page is :
<code>
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Page05.aspx.vb" Inherits="Page05" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Page05</title>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" /><link href="Eng05.css" type="text/css" rel="Stylesheet" />
</head>
<body>
<form id="Form5" method="post" runat="server">
<a id="ankera-p5"></a>
<div id="container">
<div id="inner_container">
<p>THE "ANY SMALL AD" WEB SITE</p>
<p>How to pay</p>
xxxxxxxx
<p><a href="Page11.aspx#ankera-p11" >Back to Services page</a></p>
<p><a href="Default.aspx#ankera-p1" >Back to home page</a></p>
<p></p>
</div> <!-- End of inner container -->
</div> <!-- End of container -->
</form>
</body>
</html>
</code>
I pasted in the button code where I have put "xxxxx", but it's all a mess and I can't seem to get the button to appear.
Paypal Integration With C# Even Though Your Website Is Still Offline?
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View 1 RepliesC# - PayPal - ExpressCheckout And Recurring Payments
Oct 27, 2010I'm trying to get PayPal's ExpressCheckout working with Recurring Payments. I've got the first two stages (the calls to SetExpressCheckout and GetExpressCheckoutDetails) but CreateRecurringPaymentsProfile fails with the error below. I'm using a modified version of Paypal's sample code, but I suspect I'm (not) setting an encoder value. Anyone used this before? The error:
// TIMESTAMP: 2010-10-27T09:57:47Z
// CORRELATIONID: ad2b2da33c672
// ACK: Failure
// VERSION: 51.0
// BUILD: 1553277
// L_ERRORCODE0: 11502
// L_SHORTMESSAGE0: Invalid Token
// L_LONGMESSAGE0: The token is invalid
// L_SEVERITYCODE0: Error
The code I'm using is:
/// This returns true
public bool SetExpressCheckout(string amt, 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";
}
string baseUrl = "http://" + HttpContext.Current.Request.Url.Authority;
string[] returnUrlParts = WebConfigurationManager.AppSettings["PaypalReturnUrl"].Split('?'),
cancelUrlParts = WebConfigurationManager.AppSettings["PaypalCancelUrl"].Split('?');
string returnURL = baseUrl + VirtualPathUtility.ToAbsolute(returnUrlParts[0]) + (returnUrlParts.Length > 1 ? '?' + returnUrlParts.Skip(1).Aggregate((itms, itm) => itms + itm) : string.Empty),
cancelURL = baseUrl + VirtualPathUtility.ToAbsolute(cancelUrlParts[0]) + (cancelUrlParts.Length > 1 ? '?' + cancelUrlParts.Skip(1).Aggregate((itms, itm) => itms + itm) : string.Empty);
NVPCodec encoder = new NVPCodec();
encoder["METHOD"] = "SetExpressCheckout";
encoder["RETURNURL"] = returnURL;
encoder["CANCELURL"] = cancelURL;
encoder["AMT"] = amt;
//encoder["PAYMENTACTION"] = "SALE";
encoder["CURRENCYCODE"] = "GBP";
encoder["NOSHIPPING"] = "1";
encoder["L_BILLINGTYPE0"] = "RecurringPayments";
encoder["L_BILLINGAGREEMENTDESCRIPTION0"] = "Subscription for MySite";
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;
retMsg = ECURL;
return true;
} else {
retMsg = "ErrorCode=" + decoder["L_ERRORCODE0"] + "&" +
"Desc=" + decoder["L_SHORTMESSAGE0"] + "&" +
"Desc2=" + decoder["L_LONGMESSAGE0"];
return false;
}
}
/// This returns true
public bool GetExpressCheckoutDetails(string token, ref string PayerId, 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);
NVPCodec 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;
}
}
// This fails and returns false with the following in the decoder result
// TIMESTAMP: 2010-10-27T09:57:47Z
// CORRELATIONID: ad2b2da33c672
// ACK: Failure
// VERSION: 51.0
// BUILD: 1553277
// L_ERRORCODE0: 11502
// L_SHORTMESSAGE0: Invalid Token
// L_LONGMESSAGE0: The token is invalid
// L_SEVERITYCODE0: Error
public bool CreateRecurringPaymentsProfileCode(string token, string amount, string profileDate, string billingPeriod, string billingFrequency, ref string retMsg)
{
NVPCallerServices caller = new NVPCallerServices();
IAPIProfile profile = ProfileFactory.createSignatureAPIProfile();
profile.APIUsername = this.APIUsername;
profile.APIPassword = this.APIPassword;
profile.APISignature = this.APISignature;
profile.Environment = "sandbox";
caller.APIProfile = profile;
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["VERSION"] = "51.0";
// Add request-specific fields to the request.
encoder["METHOD"] = "CreateRecurringPaymentsProfile";
encoder["TOKEN"] = token;
encoder["AMT"] = amount;
encoder["PROFILESTARTDATE"] = profileDate; //Date format from server expects Ex: 2006-9-6T0:0:0
encoder["BILLINGPERIOD"] = billingPeriod;
encoder["BILLINGFREQUENCY"] = billingFrequency;
encoder["L_BILLINGTYPE0"] = "RecurringPayments";
encoder["DESC"] = "Subscription for MySite";
// Execute the API operation and obtain the response.
string pStrrequestforNvp = encoder.Encode();
string pStresponsenvp = caller.Call(pStrrequestforNvp);
NVPCodec decoder = new NVPCodec();
decoder.Decode(pStresponsenvp);
//return decoder["ACK"];
string strAck = decoder["ACK"];
bool success = false;
if (strAck != null && (strAck == "Success" || strAck == "SuccessWithWarning")) {
success = true; // check decoder["result"]
} else {
success = false;
}
StringBuilder buffer = new StringBuilder();
for (int i = 0; i < decoder.Keys.Count; i++) {
buffer.AppendFormat("{0}: {1}", decoder.Keys[i], decoder.GetValues(i).Aggregate((vals, val) => vals + "----" + val));
}
retMsg = buffer.ToString();
return success;// returns false
}
If it helps, the code which is calling it is :
NVPAPICaller ppapi = new NVPAPICaller();
NVPCodec decoder = new NVPCodec();
string retMsg = string.Empty,
token = Convert.ToString(Session["token"]),
finalPaymentAmount = "15",
payerId = Convert.ToString(Session["payerId"] ?? string.Empty); // set from SetExpressCheckout
bool shippingSuccess = ppapi.GetExpressCheckoutDetails(token, ref payerId, ref retMsg);
if (shippingSuccess) {
payerId = Session["payerId"].ToString();
btnConfirm.Enabled = false;
bool paymentSuccess = ppapi.CreateRecurringPaymentsProfileCode(token, finalPaymentAmount, DateTime.Now.ToString("yyyy-M-DTH:m:s"), "Year", "1", ref retMsg);
// but paymentSuccess is false
Web Forms :: PayPal Web Payments Standard Submission?
Feb 21, 2011I have PayPal Web Payment standard successfully integrated in an ecomerce solution I'm developing. My problem is this, I want to store details of the order being placed before it is sent to PayPal but only if it is sent and not if the just fill in everything in the shopping cart and then leave the page. There are 3 ways I can think of how this might be acheived but I'm not sure how to implement them.
1. Put some code in the page_unload that stores the data fi the page the browser is being transferred to is the paypal site. However I don't a way to determine what the next page is going to be.
2. Submit the the information to PayPal from the code behind. I'm sure this should be possible but I don't know how to do it and haven't managed to find a good articles on it.
3. Assign a javascript function to the onclick on PayPal submit button that calls a servside function using PageMethods. However this just seems like a bit a bodge introduces a whole array of other problems.
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Sep 10, 2010In my shopping website..... I had integrated Paypal. Using the Developer / SandBox Version I had already tested the site from my local machine. It is working fine.
But after uploading the files in shared web-Server, whenever I am trying to call the Paypal, then always it is showing me the following error. The operation has timed out Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.WebException: The operation has timed out
Source Error:
[Code]....
Line 32: End If
Line 33: Catch ex As Exception
Line 34: Throw ex
Line 35:
Line 36: Finally
Source
File: D:whbSites29519Webexpresscheckout.aspx.vb Line: 34
Stack Trace:
[Code]....
[WebException: The operation has timed out]
expresscheckout.expresscheckout_Load(Object sender, EventArgs e) in D:whbSites29519Webexpresscheckout.aspx.vb:34
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
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Problem...
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I know noting about JavaScript and have been working with code copied and pasted from these forums for months but now in adjusting my code so it works from the Master Page.
Here is code: first for the Add to Cart button in the Content Page, then for the View Cart button in the Mater Page (just the code behind)...
[Code]....
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There is a link in paypal page called "Return to Merchant Test Score" and when user click on the link it redirects to my Thanks.aspx where I fetch the response and if verified the update the database.
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However, if I uncomment the response.redirect(url) I get the following error: ERROR: Unable to Send to PayPal - Thread was being aborted.
I am testing from localhost??? Should I be able to test this from localhost?
I have put ??? where my Sandbox email address is.....I don't know if letting other see that or not is an issue....otherwise I would have left it in for someone to try this code.
[Code]....
This is what displays in the lable1.text when response.redirect is commented out
[URL]
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Oct 30, 2010https://www.x.com/community/ppx/code_samples
The sample code returns ACK, but where is the proper response?
For example
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https://cms.paypal.com/cms_content/US/en_US/files/developer/nvp_GetBalance_cs.txt
but the document shows it returns other values?
https://www.x.com/docs/DOC-1186