Product list API - response parameter names not suitable as per response output

Steps :

• Check in Admin side
  1. Go to Services > Products > Product list API
  2. Enter valid input and run the api and check response

Expected result : parameters name should be display like country_name, reseller_name. Because in reponse we get names, not a id.

Actual result : parameters name is display as country_id, reseller_id