Convert a Node Stream to a Buffer

convertStreamToBuffer.js

const convertStreamToBuffer = async (
  stream: NodeJS.ReadableStream
): Promise<Buffer> => {
  return new Promise((resolve, reject) => {
    let buffers: Uint8Array[] = [];

    stream.on("data", (data) => {
      buffers.push(data);
    });

    stream.on("end", () => {
      resolve(Buffer.concat(buffers));
    });

    stream.on("error", reject);
  });
};