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:

<apache-tomcat>\webapps\ROOT\test.json

And I confirmed (in a browser) that I was able to retrieve this JSON over HTTP - just by doing :

http://prpchost:7220/test.json

Then I proceeded through the wizard like this:

1. DESIGNER STUDIO > Integration > Connectors > Create REST Integration

2. Connection: URL for JSON file to 'Endpoint URL':

3. Name the Resource: I just used 'Test'. Optionally change the Method (actually you don't need to do this)

4. Use 'Add a REST response', and 'Run' a connection to retrieve the JSON.

[See my note above: if you already have the JSON in a file; just use 'Add a file' instead].

5. Review what PRPC will build (you can click 'preview' here also as well if you want).

6. Confirm PRPC has built the rules to match the JSON - note the name of the Data Class created.

7. Compare the Data Model with the original JSON:

Hope this helps - can you run through this and see whether this works for you ?

Did I understand your requirement properly ?

Cheers

John