🛠️ This is the kind of guide that turns “I’m curious about backend” into “I just built my first API!” As a full-stack dev working with Django, FastAPI, and React, I love how this tutorial keeps things modular and beginner-friendly. The use of Express routing and JSON handling is clean, and the curl/Postman testing tips are spot-on. I often tell junior devs in my Bangla-speaking community: একটা API মানে শুধু ডেটা না, এটা একটা চুক্তি, ক্লায়েন্ট আর সার্ভারের মধ্যে বিশ্বাসের ভিত্তি। (An API isn’t just data, it’s a contract, a foundation of trust between client and server.)