files.com/src/isomorphic/File.node.js

Files.com SDK for JavaScript

const openDiskFileReadStream = sourceFilePath => {
  const fs = require('fs')
  return fs.createReadStream(sourceFilePath)
}

const openDiskFileWriteStream = destination => {
  const fs = require('fs')
  return fs.createWriteStream(destination)
}

const saveUrlToStream = async (url, stream) => new Promise((resolve, reject) => {
  const https = require('https')

  https.get(url, response => {
    response.pipe(stream)

    stream.on('finish', () => {
      stream.close()
      resolve()
    })
  })
    .on('error', error => {
      stream.close()
      reject(error)
    })
})

const saveUrlToString = async url => new Promise((resolve, reject) => {
  const https = require('https')

  https.get(url, response => {
    const chunks = []
    response.on('data', chunk => chunks.push(Buffer.from(chunk)))
    response.on('end', () => resolve(Buffer.concat(chunks).toString('utf8')))
  })
    .on('error', error => {
      reject(error)
    })
})

const saveUrlToFile = async (url, destinationPath) => {
  const stream = openDiskFileWriteStream(destinationPath)
  await saveUrlToStream(url, stream)
}

export {
  openDiskFileReadStream,
  openDiskFileWriteStream,
  saveUrlToFile,
  saveUrlToStream,
  saveUrlToString,
}