Paypal pro do I still need to use ipn?

When using paypal pro (never leaves site 开发者_开发问答to process payment) do I still need to use ipn or is the api response enough?

If not how can I set the notify_url in a paypal api DoDirectPayment.

Sorry if I haven't explained this very well

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The API response should suffice. From the API response you can already tell if the payment has been accepted or not.