Please excuse my ignorance re JSON responses. 

This question is limited to the iSheet REST API calls but may apply to the REST API for other areas. I have noticed when I make a REST call that can return 0, 1 or N results -- such as retrieving the records in an iSheet -- if the response includes N results, then the JSON response formats that as an array, but if there is only 1 response, then the JSON response is formatted as an object (not an array).  This requires me to include defensive coding when I parse the JSON response to check whether or not the response returns an array or object.   That likely means no responses would be an empty array, but that may be handled more gracefully.

Shouldn't the response format be consistent -- and be an array -- regardless of whether there is 1 or N results?  See:  softwareengineering.stackexchange.com/.../api-always-returns-jsonobject-or-jsonarray-best-practices: "If it is retrieving one or more objects, it makes logical sense to always return an array containing the results, even if it is an array with only one element."