Guides · Streams

Convert a Node.js Readable to an Uint8Array

Read a Node.js Readable stream into a Uint8Array by wrapping it in a Response and calling .bytes().

To convert a Node.js Readable stream to a Uint8Array in Bun, create a Response with the stream as the body, then call bytes().

import { Readable } from "stream";
const stream = Readable.from(["Hello, ", "world!"]);
const buf = await new Response(stream).bytes();