You'll need to at least handle the integration piece outside of Quickbase then in terms of actually interacting with Paypal. Pipelines can't handle Oauth authentication, so if you go that route you'd need to setup your own custom integration outside of Quickbase entirely to actually handle the Paypal transaction. Keep in mind that many applications such as Paypal given the nature of their platform will require you to register your application/integration for Production use
The only things Pipelines could do is actually send out the request to your server with the necessary information for your script to process. Pipelines might also be able to be the listener for webhooks coming from Paypal so you could process the payment recording.
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Chayce Duncan
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