Build and Debug a Small REST API with Node.js
Build a dependency-free REST API with Node.js, test it from the terminal, and use a repeatable debugging workflow when requests fail.
About me
Hey there, I’m Abdullah. This blog is a personal hobby and a place where I share my learning journey, experiences, and interests. I write about my work experiences, technology, programming, and the new things I discover along the way.
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Latest articles
Notes on computer networks, programming and the way I work — written to share what I learn.
Understanding IP Addressing and Subnetting
A practical, from-scratch guide to IPv4 addresses, subnet masks and CIDR — with worked examples you can follow along.
How DNS Resolution Works, Step by Step
Follow a single browser request through the full DNS lookup chain, from your local cache to the root servers and back.
TCP vs UDP: Choosing the Right Protocol
A clear comparison of the two core transport protocols — reliability versus speed — and when to reach for each one.
A Beginner's Guide to HTTP and REST APIs
Understand the request/response cycle, status codes and the conventions that make a REST API predictable and pleasant to use.
Getting Started with JavaScript Promises and async/await
Stop guessing about asynchronous JavaScript — a clear mental model for Promises, the event loop, and modern async/await syntax.
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