> ## 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.

# Streaming HTTP Server with Node.js Streams

In Bun, [`Response`](https://developer.mozilla.org/en-US/docs/Web/API/Response) objects can accept a Node.js [`Readable`](https://nodejs.org/api/stream.html#stream_readable_streams).

This works because Bun's `Response` object allows any async iterable as its body. Node.js streams are async iterables, so you can pass them directly to `Response`.

```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}
import { Readable } from "stream";
import { serve } from "bun";
serve({
  port: 3000,
  fetch(req) {
    return new Response(Readable.from(["Hello, ", "world!"]), {
      headers: { "Content-Type": "text/plain" },
    });
  },
});
```


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