LeMMIH

A simple, performance-focused Web framework.

Usage

import { App, res, routing } from 'lemmih'

const app = new App()
  .route('/', routing.get(() => res.text('Hello from LeMMIH')))

// Web Standards (Deno, Bun, Vercel, Cloudflare, etc...)
// For Node.js, you can use https://srvx.h3.dev
export default app.fetch // (req: Request) => Promise<Response>

import { res, routing } from 'lemmih'
import { App } from 'lemmih/bun' // Bun-specific app

const app = new App()
  .route('/', routing.get(() => res.text('Hello from LeMMIH')))

Bun.serve({
  fetch: app.fetch, // Bun.serve optimized
  port: 3000,
  routes: app.routes // Bun.serve optimized
})

Design

Minimum Context

Use import foo from 'lemmih' instead of ctx.foo, which helps with tree shaking.

Runtime-agnostic

LeMMIH can run on many runtimes, and when you run it on Bun, you can take advantage of related optimizations.

Look familiar?

~~Scenes like these are happening all over the galaxy right now. You could be next.~~

LeMMIH's architecture draws inspiration from Axum. In fact, you can even pair it with the Result/Option library!

Performance

Router

bun bench:routers

summary
  LeMMIH
   1.07x faster than Hono RegExpRouter
   1.37x faster than Memoirist
   3.89x faster than Hono PatternRouter
   10.4x faster than Hono TrieRouter

We're now the fastest router!

Framework

bun bench:frameworks

| Framework | Runtime | Average | Ping | Query | Body | | ---------------- | ------- | ------- | ---------- | ---------- | ---------- | | elysia | bun | 142,691.557 | 308,885.15 | 67,891.31 | 51,298.21 | | lemmih-bun | bun | 72,257.477 | 81,757.63 | 72,651.35 | 62,363.45 | | lemmih | bun | 50,596.787 | 69,206.43 | 46,928.6 | 35,655.33 | | hono | bun | 46,156.69 | 60,575.09 | 44,380.09 | 33,514.89 |

We're still a distance from Elysia.

Framework cold start

bun bench:frameworks-init

summary
  lemmih/bun
   2.4x faster than lemmih
   4.56x faster than hono/quick
   6.43x faster than hono
   10.43x faster than hono/tiny
   29.41x faster than elysia

Due to LeMMIH's minimal context design, it achieves very fast cold starts.

License

MIT