If you run through the REST CONNECTOR wizard; about half way through the wizard - you get a screen with a 'request' and 'response' tab: if you click the 'response' tab and use the '+' plus button , you can provide a sample JSON input to the wizard.
Post back here if you can't get this working (also provide your PRPC version and your JSON example [if possible]).
EDIT: I just noticed that my powers of observation aren't great. Doh !
I'll leave my original POST here for reference, but in fact - the process is a lot simpler than what I did here.
You can just upload the 'test.json' directly at step #4. (you don't have to bother 'hosting' a JSON file behind a web server at all). I rechecked this with an uploaded file: it works ! but I didn't want to re-take all my screenshots).
This is what I did:
1. I took your JSON and saved it behind my Tomcat Server as 'test.json'.
That is: on my PRPC Server's Tomcat (but you can choose any webserver that is reachable by PRPC in fact); I put the JSON in a file like this:
And I confirmed (in a browser) that I was able to retrieve this JSON over HTTP - just by doing :