Fix 'util.pump is not a function' in Node.js

The util.pump is not a function error means the code uses an old Node.js API.

Old programs used this syntax to send a readable stream into a writable stream:

util.pump(readableStream, writableStream)

util.pump() was deprecated and then removed. Use pipeline() from the node:stream module instead.

Use the promise API

In an ES module, import pipeline from node:stream/promises:

import { pipeline } from 'node:stream/promises'

try {
  await pipeline(readableStream, writableStream)
} catch (error) {
  console.error('The pipeline failed', error)
}

pipeline() connects the streams, forwards errors, and cleans them up when the operation fails.

Use the callback API

CommonJS programs can use the callback version:

const { pipeline } = require('node:stream')

pipeline(readableStream, writableStream, error => {
  if (error) {
    console.error('The pipeline failed', error)
    return
  }

  console.log('The pipeline completed')
})

Do not leave the callback empty. An empty callback hides the error that pipeline() reports.

See the current pipeline() documentation for more stream types and options.