PayPal IPN sends a POST request with a variable number of fields to the notify URL, in order to confirm that the POST request is legit we need to resubmit the same request along with a additional cmd=_notify-validate field to PayPal, which then replies VERIFIED or INVALID. My question is, why do we need to resend the request to PayPal? ...
Here are two sources for PayPal IPN: Kona.Web IPN DotNetNuke IPN DNN has a loop in the beginning of the Page_Load method that captures txn_type and txn_id, which I don't see in the Kona code. DNN also captures payer email and other information into local variables. I am trying to make sure that I incorporate some of the security chec...
Hi, I am using paypal standard as my payment gateway. My problem is that, in Paypal Standard payment method, I have done my code as below: When user click on return to merchant button from paypal then user return to the site with order data , and on that page my order entry will be inserted in my DB. So my problem occur when someone p...
I'd like to set up a PayPal donation box, and use their IPN protocol to monitor when donations come in. The documentation is enormously complex and full of features I'm not interested in. Is there a short snippet -- ideally in Python -- that shows how to, say, connect to Paypal, loop forever, and print "Just got $5" every time a donation...
hello Guys, i have included the payment system in my site using paypal. in paypal, i have choose the payment message service as IPN. Now i have some question about the flow my site, i don't how to handle it. 1) Now If the user name called "A" had paid for some service and at the same time user name called "B" is also making payment, H...
I'm trying to create a simple paypal purchase system. Going through a few tutorials, it seems like I need to use the IPN (Instant Payment Notification) system to keep track of whether the order is paid. Is it sufficient to use the return url variable instead, and pass in the order id? For example, something like return="http://mysite.co...
I'm trying to sell virtual goods using PayPal (already implemented Zong+) in Django. I decided to use django-paypal to handle the IPN for me (decided that IPN was the best fully automated option.) I've currently made a buy-now button using the PayPal button wizard on their website, ie it's secure and saved on paypal to protect against t...
I have successfully posted my custom shopping cart to PayPal -- it processes the order just beautifully, and when the payment is received, it posts data back to the URL I specified in the config. The code is based on the library found here: http://www.phpfour.com/blog/2009/02/php-payment-gateway-library-for-paypal-authorizenet-and-2chec...
I was thinking how to treat the payment status in my database. I want to store all payments in my database (also the pending ones). But we have to check in the IPN process if there is already a payment with such txn_id, right? Let's suppose I receive a payment that is pending and I store it on my database. After that, when the payment ...
[Edit] I have reedited the previous question - since I had misunderstood what was causing the problem - and therefore the ample snippet I had before was a red herring. Thanks to wimdvx, I have a clearer idea as to what is going on. First of all, I am using code that is base on this one, to handle IPN notifications from Paypal. I was u...
I am testing integrating a website to Paypal, using Web Payments standard and HTML Variables. I have written a simple PHP script to handle the IPN notifications. According to the Paypal documentation, the Paypal server responds with a simple 'VERIFIED' or 'INVALID' response, once you ping the received data back to Paypal. In my handle...
Hi... I'm confused about WHEN I'll get a exchange_rate non-null value from IPN... If I have option "block payments from other currencies etc" set to "No, but convert to USD" (in the payment receiving options of account) do I will ALWAYS get the mc_gross already converted to USD and null exchange_rate? Could someone explain-me it more ...
Reading PayPal developer documentation (and this is a lot of documentation) I'm not sure if IPN is mandatory or I can simply ignore it. Of course, I must implement some other mecanism in order to know if the payment was correct. I thought doing something like this: Create a new payment (via web service) with a different code in both r...
I understand that when the customer logs into PayPal and uses their PayPal account, PayPal will send us the customer's payer_id. But what happens if the customer does not log into PayPal and just uses a credit card to process the payment? And is there any way to fake that in the Sandbox? Does PayPal supply test credit card numbers? One f...
I'm working on an IPN script to run a premium-content site. I'll be using PayPal subscriptions of various lengths for users to sign up for the site, and I'm trying to develop some way to handle user's profile data and "credit" using the IPN notifications. I've already determined that I will initially create the user's account in my inte...
Hi, Can we assume that the payment is completed for a transaction when the customer is auto returned to our site? Paypal advices us to use their IPN system for other types of payment, like an e-check, but also tells us to tell the customer something along the lines of "Thank you for your payment. Your transaction has been completed, an...
I want write a PHP registry code That when a User registried than go to PayPal site and give some money to us and after her payment , her account activation in our site Automatically . what am i going to do ? Thanks in Advance . ...
im using the following library in codeignighter http://codeigniter.com/wiki/File:Paypal_Lib.php.tgz/ when i go to my history>ipn history in my paypal account, all the ipn notifications have a status of 408 is this a server problem. ive tried rewriting the ipn handler everywhichway im on rackspace cloud. ...
Howdy, I want to learn implementing PayPal in website. I'll be using ExpressCheckout method. I know there are following steps: 1. Cart page on a website 1a. Provide custom IPN URL in PayPal form (notify_url). 2. Redirect to PayPal payment page. 3a. On success redirect to my "payment confirmation" page. 3b. On false redirect to payment ...
I am using "buy it now" PayPal buttons but I DO NOT want to use the previously saved buttons on my PayPal account, I want to create a custom form that has a submit button. However, I need to know which fields are the minimum required ones for a form. I thought it would be something like this <input type="hidden" name="cmd" value="_s-xcl...