I am developing an application that requires to use Paypal Adaptive payments. I am using .net mvc framework and c# for development
As per the requirement of an application, I have to take a pre-approval of an user to deduct an amount by certain future date.
I am using https://devtools-paypal.com/guide/ap_preapprove_payment/dotnet?success=true this guide to develop my solution.
There is no problem till step 3 - redirecting user to paypal to authorise pre-approval.
I would like to know how to implement IPN so I will get notified that user has authorised us for pre-approval. But there is no guide or information regarding what kind of object it will return to an IPN method. And even when user successfully authorise for pre-approval, user is being redirected to the returnUrl but there is no response coming back with it.
Any idea, direction or guidance will be helpful.
IPNMessage.Validate() to validate a received IPN message.