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# WebTorrent Tutorials
## Integrate WebTorrent with Video Players
WebTorrent can be used to stream videos. WebTorrent can render the incoming video to an HTML `<video>` element. Below are some examples for various video players.
### [Service Worker Renderer](https://github.com/webtorrent/webtorrent/blob/master/docs/api.md#clientloadworkercontroller-function-callback-controller---browser-only)
Code example:
```js
import WebTorrent from 'webtorrent'
const client = new WebTorrent()
const torrentId = "magnet:?xt=urn:btih:08ada5a7a6183aae1e09d831df6748d566095a10&dn=Sintel&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fsintel.torrent"
const player = document.querySelector('video')
function download () {
client.add(torrentId, torrent => {
// Torrents can contain many files. Let's use the .mp4 file
const file = torrent.files.find(file => file.name.endsWith('.mp4'))
// Log streams emitted by the video player
file.on('stream', ({ stream, file, req }) => {
if (req.destination === 'video') {
console.log(`Video player requested data from ${file.name}! Ranges: ${req.headers.range}`)
}
})
// Stream to a <video> element by providing an the DOM element
file.streamTo(player, () => {
console.log('Ready to play!')
})
}
}
navigator.serviceWorker.register('sw.min.js', { scope }).then(reg => {
const worker = reg.active || reg.waiting || reg.installing
function checkState (worker) {
return worker.state === 'activated' && client.loadWorker(worker, download)
}
if (!checkState(worker)) {
worker.addEventListener('statechange', ({ target }) => checkState(target))
}
})
```
### [Video.js](https://videojs.com/)
Video.js is an open source HTML5 & Flash video player. We include the dependencies for `video.js` using CDN. A normal `<video>` element is converted to `video.js` by passing `class="video-js"` and `data-setup="{}"`. For more information visit the [docs](https://docs.videojs.com/tutorial-setup.html).
**Note**: Unlike in the Default HTML5 Video Player example we don't directly pass the ID of the `<video>` element but pass `` `video#${id}_html5_api` `` (JS String Literal). It is because `video.js` wraps the `<video>` element in a `<div>`.
Original code:
```html
<video
id="video-container"
class="video-js"
data-setup="{}"
controls="true"
></video>
```
Code rendered on the browser:
```html
<div>
<video id="video-container_html5_api"></video>
</div>
```
Code example:
```html
<!DOCTYPE html>
<html>
<head>
<title>Web Torrent Tutorial</title>
<meta charset="UTF-8" />
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/video.js/7.8.1/video-js.min.css" />
<script src="//cdnjs.cloudflare.com/ajax/libs/video.js/7.8.1/video.min.js"></script>
<script src="//cdn.jsdelivr.net/webtorrent/latest/webtorrent.min.js"></script>
</head>
<body>
<video id="video-container" class="video-js" data-setup="{}" controls="true"></video>
<script>
const client = new WebTorrent()
const torrentId = "magnet:?xt=urn:btih:08ada5a7a6183aae1e09d831df6748d566095a10&dn=Sintel&tr=udp%3A%2F%2Fexplodie.org%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.empire-js.us%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2F&xs=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fsintel.torrent"
const player = document.querySelector("video#video-container_html5_api")
function download () {
client.add(torrentId, torrent => {
// Torrents can contain many files. Let's use the .mp4 file
const file = torrent.files.find(file => file.name.endsWith('.mp4'))
// Stream to a <video> element by providing an the DOM element
file.streamTo(player, () => {
console.log('Ready to play!')
})
})
}
navigator.serviceWorker.register('sw.min.js', { scope }).then(reg => {
const worker = reg.active || reg.waiting || reg.installing
function checkState (worker) {
return worker.state === 'activated' && client.loadWorker(worker, download)
}
if (!checkState(worker)) {
worker.addEventListener('statechange', ({ target }) => checkState(target))
}
})
</script>
</body>
</html>
```
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