How would I add a parameter to the URL the JSON file adapter is configured to? For example JSON data comes from URL pattern: http://localhost/api/requestid/{p} http://localhost/api/requestid/abcbefg http://localhost/api/requestid/123456 so the last part of the URL is a parameter that will vary. I can use http://localhost/api/requestid/123456 to build the report but its of no use unless I can somehow vary the parameter.