Example of converting a stream to a string

stream-to-string-ex.js

function streamToString (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).toString('utf8')))
  })
}