I need a concise, well-documented routine that connects to our private API, requests the latest stock information, receives the response in CSV, and converts it into a clean data structure I can consume in my inventory system. Please keep the implementation lightweight—no hefty frameworks unless they add real value—and write clear setup instructions so I can plug in the authentication keys and endpoint URL myself. Deliverables: • Source code that makes the call, handles auth, error checks, and parses the CSV into usable objects or records • A brief README covering dependencies, environment variables, and a sample run • One short screencast or screenshots showing the routine working with test data Success for me is seeing my console (or a simple UI, if you prefer) list product IDs with an “in stock / out of stock” flag after running your script.