Do a few more searches on here - someone was going to try it but didn’t get around to it. Couple of posts out here talk about it and someone had some basic documenation I think. These are the two thihngs I could find quickly:
Epicor ECM (DocStar) Web DataLink Connector (youtube.com)
Simple json Patch to update one field - ERP 10 - Epicor User Help Forum (epiusers.help)