convert stream to buffer in nodejs

streamToBuffer.js

/**
 * @param {import('stream').Stream} stream
 */
async function streamToBuffer(stream) {
  const chunks = [];
  return new Promise((resolve, reject) => {
    stream.on('data', (chunk) => chunks.push(Buffer.from(chunk)));
    stream.on('error', (err) => reject(err));
    stream.on('end', () => resolve(Buffer.concat(chunks)));
  });
}

module.exports = stream