This tutorial will focus on the listener part, as the setting up part on PayPal is very simple (Leave a comment if you disagree). So for example if someone completes a payment, your listener will be notified shortly after with the transaction details and all you need to know. Then, whenever something happens, PayPal will post information about the event to that address. You first give PayPal an address to a listener, for example. Hopefully it can make the lives of fellow developers easier 🙂 And since the tutorial on PDT turned out to be a bit of a success, I decided to share this too. So, once again I decided to do my own thing and just follow the steps required and implement them myself. Once again the documentation, tutorials and code samples I found on this was a bit all over the place. You can use it to automate back-office and administrative functions, such as fulfilling orders, tracking customers, and providing status and other information related to a transaction.
Instant Payment Notification (IPN) is a message service that notifies you of events related to PayPal transactions. If you for example want to mark an order in your system as paid or something like that, you most likely want to use PayPal Instant Payment Notifications (IPN) in addition to PDT. That will often happen, but it’s not guaranteed to happen. PDT is very handy in several cases, but you can’t always rely on it since it requires the user to return to your page after doing the payment. In a previous post I tried to give an introduction on how to get started with PayPal Payment Data Transfers (PDT).
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