Express.js and Middleware: The High-Level Architecture
A clean, high-level architectural overview of Express.js — routing, the request-response pipeline, the 5 types of middleware, and essential execution rules.
Oct 26, 2026•6 min read
Thoughts on development, design, and building for the web.
A clean, high-level architectural overview of Express.js — routing, the request-response pipeline, the 5 types of middleware, and essential execution rules.
Deep dive into how Node.js actually works under the hood — from the V8 engine and libuv to the 6 Event Loop phases, worker threadpool, and non-blocking asynchronous I/O.
In 2026, great developers aren't judged only by what they build — but by how it feels to use. That's where design sense becomes your next real level-up.