Download an array of url images, and if it fail retry recursively

recursiveDownload.js

const request = require('request')
const data = require('./urls')
const fs = require('fs')

const urls = data.map(product => ({
  url: product['PRODUCTIMAGEURL'],
  name: product['PRODUCTSKU']
}))

function processImg(url, name) {
  return new Promise((resolve, reject) => {
    const stream = fs.createWriteStream(`img/${name}.jpeg`)
    request(url)
      .on('error', reject)
      .pipe(stream)
    stream.on('finish', resolve)
  })
}

function processProducts(products) {
  let notProcess = []
  return products
    .reduce((prev, product) => {
      const { url, name } = product
      return prev.then(() => processImg(url, name)).catch(err => {
        notProcess.push(product)
      })
    }, Promise.resolve())
    .then(() => {
      if (notProcess.length > 0) {
        return processProducts(notProcess)
      } else {
        return null
      }
    })
}

processProducts(urls).then(() => console.log('Done!'))