Guides · Streams
Convert a ReadableStream to a Buffer
Read a ReadableStream into a Node.js Buffer with Bun.readableStreamToArrayBuffer() and Buffer.from().
To convert a ReadableStream to a Buffer, read its contents into an ArrayBuffer with Bun.readableStreamToArrayBuffer, then create a Buffer that points to it.
const stream = new ReadableStream();
const arrBuf = await Bun.readableStreamToArrayBuffer(stream);
const nodeBuf = Buffer.from(arrBuf);