Part of that data is the documents attached to a given BPD instance. Something like 'I'm writing an Agular application that will pull some data from IBM BPM. TBH, it would be better to give us the entire problem rather than just asking a tactical question. The answer to the question will differ based on the answers to 2 & 3. Where are you making the call from? (BPM Service, Browser, Separate Java Application.).What ReST call you are making? (It feels like it is one of the 'document' APIs but I'd like to be sure).