Hi, I need some help with Paypals's IPN. I want to incorporate a "buy now button" from paypal into my site for adding credits to costumers accounts, however I need an answer from paypal, saying that the transaction when trough in order to do this. After some hours of reading I found out that the only or most accurate way to this is by using the IPN option. Which posts the variables to the server and then back to paypay for confirmation. What I need to know is that in order to post the variables the button has to be encrypted-less or it can also be implemented into encrypted buttons, or it does not matter at all and if so, which way is more convenient. I do not know if someone has some experience with this, and can give a hand. Thanx
Hi Use the unencrypted part of PayPal's buy now button service. Then create a script that will create an order/add funds to the account of your users on your site, and us that as the return URL. Check out SMF 2.0, as that has paid subscriptions, and you can look at that to figure out IPN.