Playing a video in Chromecast with NodeJS

index.js

const mdns = require('mdns')
const Client = require('castv2-client').Client
const DefaultMediaReceiver = require('castv2-client').DefaultMediaReceiver

const playMedia = host => {
  const client = new Client()
  client.connect(host, () => {
    console.log('connected')
    client.launch(DefaultMediaReceiver, (err, player) => {
      const media = {
        contentId: 'http://commondatastorage.googleapis.com/gtv-videos-bucket/big_buck_bunny_1080p.mp4',
        contentType: 'video/mp4',
        streamType: 'BUFFERED',
        metadata:{
          type: 0,
          metadataType: 0,
          title: 'Coelinho',
          images:[
            { url: 'http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/images/BigBuckBunny.jpg'}
          ]
        }
      }
      player.on('status', status => {
        console.log('status', status.playerState)
      })
      player.load(media, { autoplay: true }, (err, status) => {
        console.log('playing', status.playerState)
        setTimeout(() => {
          player.seek(2*60, (err, status) => {
            
          })
        }, 10000)
      })
    })
  })
}

const browser = mdns.createBrowser(mdns.tcp('googlecast'))
browser.on('serviceUp', service => {
  const { md, fn } = service.txtRecord
  console.log(md, fn)
  playMedia(service.addresses[0])
})
browser.on('serviceDown', service => {
  const { md, fn } = service.txtRecord
  console.log(md, fn)
})

/*setTimeout(() => {
  browser.stop()
}, 5000)*/

browser.start()

package.json

{
  "dependencies": {
    "castv2-client": "^1.2.0",
    "mdns": "^2.3.4"
  }
}

hello friend, can i get a link of sound of nature? tks