bun-types/docs/guides/http/simple.md

Type definitions and documentation for Bun, an incredibly fast JavaScript runtime

---
name: Write a simple HTTP server
---

This starts an HTTP server listening on port `3000`. It responds to all requests with a `Response` with status `200` and body `"Welcome to Bun!"`.

See [`Bun.serve`](https://bun.sh/docs/api/http) for details.

```ts
const server = Bun.serve({
  port: 3000,
  fetch(request) {
    return new Response("Welcome to Bun!");
  },
});

console.log(`Listening on ${server.url}`);
```