app.js

import express from 'express'
import youtubedl from 'youtube-dl'
import mcache from 'memory-cache'

const app = express()

/** CONFIG **/
const port = process.env.PORT || 4000

const requestCache = (duration) => {
  return (req, res, next) => {
    let key = `__express__${req.originalUrl}` || req.url
    let cachedBody = mcache.get(key)
    if (cachedBody) {
      res.send(cachedBody)
    } else {
      res.sendResponse = res.send
      res.send = (body) => {
        mcache.put(key, body, duration)
        res.sendResponse(body)
      }
      next()
    }
  }
}

/** ROUTES **/
/* home */
app.get('/', (req, res) => {
  const text = '<h1>OpenLoad.CO API project</h1><p>This is just a scraper, if you have content you wish to be removed, please contact them (openload.co), not me, at their email: <a href="mailto:dmca@openload.co">dmca@openload.co</a>.</p><p>Full source code available on Github: <a href="https://www.github.com/milankragujevic/openload-api/" target="_blank">openload-api.git</a>. </p><hr><p>Copyright &copy; 2018 Milan Kragujević. Some rights reserved. By using this API you may be committing copyright infringement. I am not responsible for the contents of the API. </p>'
  res.send(text)
})

/* popular items, with pagination */
app.get('/:videoId', requestCache(60 * 60 * 12), (req, res) => {
  if (req.params.videoId === '' || req.params.videoId === 'favicon.ico') { return }

  let url = `https://openload.co/embed/${req.params.videoId}/`
  youtubedl.getInfo(url, (err, info) => {
    if (err) {
      res.send({ status: false, error: 'Unknown error occurred!' })
    }

    res.send({
      success: true,
      data: {
        id: info.id,
        title: info.title,
        stream: info.url,
        thumbnail: info.thumbnail
      }
    })
  })
})

/** LISTEN **/
app.listen(port)
console.log(`Listening on: ${port}`)