Lumine

A synchronous HTTP web server written in Rust.

Lumine is designed to be:

• Fast — Although synchronous, Lumine performs well for small to medium-scale APIs.
• Easy — Simple architecture, minimal concepts, and beginner-friendly API.

Why Lumine?

Most modern Rust web frameworks are async-first. That’s great, but not always ideal.

Lumine exists for cases where you want:

• To learn how an HTTP server works internally
• A simple web server without async/await complexity
• Full control with minimal dependencies and a std-first design

Lumine focuses on clarity first, performance second, and magic never.

Installation

Add Lumine to your project via command line.

cargo add lumine

Example

A minimal Hello World HTTP server using Lumine.

main.rs

use lumine::{Lumine, Result};
use std::net::TcpListener;

fn main() -> Result<()> {
    let app = Lumine::builder()
        .route("/", |_| "Hello, World!")
        .build();

    let listener = TcpListener::bind("127.0.0.1:8080")?;

    // Start serving incoming connections
    let rx = app.serve(listener);
    
    // ⚠️ IMPORTANT:
    // This loop is REQUIRED.
    //
    // The receiver must be continuously polled to keep the
    // internal event loop alive. If this loop is removed,
    // the server will stop processing events properly.
    //
    // In short: no recv loop = dead server.
    while let Ok(err) = rx.recv() {
        eprintln!("Client error: {err}");
    }

    Ok(())
}

Then open your browser at:

http://127.0.0.1:8080

Examples

More complete examples are available in the /examples directory.

To run an example:

cargo run --example <example-name>

Behind the Scenes

Internally, Lumine is built using:

• std::net::TcpListener for networking
• A simple routing mechanism
• Thread-based request handling
• An event channel for propagating client-side errors

No async runtime, no hidden magic.

Project Status

⚠️ Early Development Warning

Breaking changes may occur as the API evolves.

License

This project is licensed under the MIT License.