> ## Documentation Index
> Fetch the complete documentation index at: https://bun-1dd33a4e-farm-dc5e99a7-serve-route-target-normalization.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-dc5e99a7-serve-route-target-normalization/irnPaIf5BInKUovc/icons/typescript.svg?fit=max&auto=format&n=irnPaIf5BInKUovc&q=85&s=749f5ca3fc8733d63266eddb19569000" theme={null}
const server = Bun.serve({
  port: 3000,
  fetch(request) {
    return new Response("Welcome to Bun!");
  },
});

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


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