> ## Documentation Index
> Fetch the complete documentation index at: https://bun-1dd33a4e-farm-c9035eb1-hot-recreated-import-unwatched.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 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`](/runtime/http/server) for details.

```ts server.ts icon="https://mintcdn.com/bun-1dd33a4e-farm-c9035eb1-hot-recreated-import-unwatched/iQiNa3eN_F6jOmGF/icons/typescript.svg?fit=max&auto=format&n=iQiNa3eN_F6jOmGF&q=85&s=b265dc4db2a5a76a3228f58794d844bf" theme={null}
const server = Bun.serve({
  port: 3000,
  fetch(request) {
    return new Response("Welcome to Bun!");
  },
});

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