Question regarding sending PS data in json format to third party via REST POST (PT 8.57/FSCM 9.2)

We need to develop some REST APIs to post data to a third party application. We are on PT 8.57 and will not be upgrading to PT 8.61 until spring. We need to send about 60K records daily to the third party. Vendor is requesting data in json format via a REST POST request. We have tested the API endpoint using PostMan and are now ready to develop this within PeopleSoft.

We have some fundamental questions.

1) We have created a PS view to represent the data we will send. Would you recommend creating a PS Document to map to this record? (It seems this would be the way to convert the PS field names to camelCase as required by the Vendor. I have also heard others say to stay away from Documents Technology if at all possible.) I am assuming that this document could then be used to create the message that will be sent to the vendor.