What is it?

Routup is a minimalistic, runtime-agnostic HTTP routing framework built on Web standard Request and Response. Handlers receive an event object (IAppEvent) and return values that are automatically converted to Response objects.

It runs on Node.js, Bun, Deno, Cloudflare Workers, and any runtime that supports the Web API.

Quick Example

import { App, defineCoreHandler, serve } from 'routup';

const app = new App();

app.get('/', defineCoreHandler((event) => {
    return { message: 'Hello, World!' };
}));

app.get('/users/:id', defineCoreHandler((event) => {
    return { id: event.params.id };
}));

serve(app, { port: 3000 });

Features

• Built on Web standard APIs (Request/Response)
• Return-based response model — return strings, objects, Response, streams, and more
• Event-based handler signature: (event) => value
• Runtime agnostic (Node.js, Bun, Deno, Cloudflare Workers)
• Async/await support throughout
• Powerful plugin system
• Tree-shakeable request and response helpers
• Nestable routers
• TypeScript support
• Minimalistic core with maximum flexibility