CODEWITHSUNDEEP
paypalpaypal-ipn
otrebla
otrebla

Reputation: 245

What happens if my Paypal IPNs listener is down?

I'm handling some purchases through the buy now button. I pass in the notify URL and I implemented an IPN listener to process the IPNs that Paypal sends me after the purchase is gone through. I was wondering what happens if my IPN listener is down/not able to process the IPN. Does Paypal keep trying sending the IPN until it gets a 200? Do you have suggestions on how to handle such case on my end?

Also, when I check an IPN I only check if the status of the IPN is "VERIFIED" and if the payment_status is "Completed". Only in this case I authorize the purchase on my end. Was wondering what happens if the payment_status is "Pending" instead. Does Paypal keep sending IPNs until the payment is "Completed"? Is there a reference/guide on how to handle all the possible values of payment_status?

Thank you

Upvotes: 0

Views: 111

Answers (2)

Drew Angell
Drew Angell

Reputation: 26056

PayPal will send an additional IPN when the status of a transaction changes. So you'd get one IPN when the original pending payment comes through, and then you would get another when that payment clears (or fails) with the same txn_id but the updated payment_status.

Upvotes: 0

David Nguyen
David Nguyen

Reputation: 8508

It listens for a 200 response, if no 200 response is received it will retry.

An IPN will be resent for up to four days, with a maximum of 15 retries.

https://developer.paypal.com/docs/classic/ipn/integration-guide/IPNIntro/

Upvotes: 2

Related Questions