The marketplace I am building needs to be notified when a payment completes so that automated delivery would kick in. So far I found IPNs and webhooks and both do very similar things. I was wondering, what is the difference between the two, and when should I pick which?
Also, with IPNs they explicitly state that I should initiate my delivery procedure when I receive IPN with status `completed`, it is much less clearer what events should I listen in webhooks.
Thanks for help.
