Build an HTTP server from scratch in Rust — no frameworks, no dependencies (opens in new tab)

A web server does not start as a framework. Before Axum, Actix, Rocket, Express, Django or FastAPI, there is something much simpler: a program that opens a TCP port, accepts connections, reads bytes, interprets an HTTP request and writes back a response the browser can understand. I wrote a Spanish tutorial where we build that from scratch using only Rust’s standard library. The tutorial covers: TcpListener and TcpStream reading real HTTP requests from the browser building HTTP responses manu...