paypal-ipn

I have been trying to implement the paypal IPN system into a clients site. Whenever I test this script in the IPN sandbox tool, it is validated and my actions are performed, however when I move it live, the IPN is returned as INVALID. I am at a wall here, thank you in advance for your help. This is the IPN listener script: <?php /** * PayPal IPN Listener * * A class to listen for and handle Instant Payment Notifications (IPN) from * the PayPal server. * * https://github.com/Quixotix/PHP-PayPal-IPN * * @package PHP-PayPal-IPN * @author Micah Carrick * @copyright (c) 2011 - Micah Carrick *

I know how to make a PayPal donate button redirect after payment, but what I need to know is, can you pass the payed amount through this redirection. So it would redirect to http://example.com/donate?amount=123 , is this even possible? Thanks! EDIT: It seems I can do it with IPN(?), I just don't know how to use paypal's IPN, can anyone help me? (yes I have read the docs, they are confusing) yes it is possible, like so: <!-- where you setup your paypal button : --> <input type="hidden" name="return" value="http://example.com/donate?amount=<?php echo $amount ?>" /> But (concerning security) It

I'm using paypal subscriptions and the instant payment notification (IPN) to handle subscribers on my site. For the most part it works well but there is one occasional problem I've encountered. Usually if a user cancels their subscription, I wait for the "end of term" (subscr_eot) notification before disabling access to my site. So if they prepay for the whole month, and then cancel right away, they still have access for the rest of the month (as it should be). But some users are having this problem where they: Cancel their subscription Before the "end of term" is reached they decide to re

I am trying to process the response from paypal on my page. I found this code from paypal documentation itself. When the response is valid, some parameters needs to be processed like txn_id and payment_completed . How should i do that?? the code is as follows string strSandbox = "https://www.sandbox.paypal.com/cgi-bin/webscr"; // string strLive = "https://www.paypal.com/cgi-bin/webscr"; HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strSandbox); //Set values for the request back req.Method = "POST"; req.ContentType = "application/x-www-form-urlencoded"; byte[] param = Request

Is there a webhook that fires when a billing agreement's payment is received? I created a billing plan and got a user to accept a billing agreement for recurring payments every month. When the billing agreement is executed, the webhook BILLING.SUBSCRIPTION.CREATED fires. Is there a webhook that fires when the payment is received every month? I've seen some older discussions about this and I'm not sure if it has been implemented yet or if I should still use IPN instead. This functionality is not yet supported but we are working with the internal teams actively to get this out of the door soon.