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48 lines
1.4 KiB
Markdown
48 lines
1.4 KiB
Markdown
# Count the number of peers using the `scrape` feature of torrent trackers
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Here's a full example with `browserify`.
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```
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npm install browserify parse-torrent bittorrent-tracker
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```
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`scrape.js`:
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```js
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var Tracker = require('bittorrent-tracker')
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var magnet = require('magnet-uri')
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var magnetURI = "magnet:?xt=urn:btih:6a9759bffd5c0af65319979fb7832189f4f3c35d&dn=sintel.mp4&tr=udp%3A%2F%2Fexodus.desync.com%3A6969&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Ftracker.internetwarriors.net%3A1337&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80&tr=wss%3A%2F%2Ftracker.btorrent.xyz&tr=wss%3A%2F%2Ftracker.fastcast.nz&tr=wss%3A%2F%2Ftracker.openwebtorrent.com&tr=wss%3A%2F%2Ftracker.webtorrent.io&ws=https%3A%2F%2Fwebtorrent.io%2Ftorrents%2Fsintel-1024-surround.mp4"
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var parsedTorrent = magnet(magnetURI)
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var opts = {
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infoHash: parsedTorrent.infoHash,
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announce: parsedTorrent.announce,
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peerId: new Buffer('01234567890123456789'), // hex string or Buffer
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port: 6881 // torrent client port
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}
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var client = new Tracker(opts)
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client.scrape()
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client.on('scrape', function (data) {
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console.log(data)
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})
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```
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Bundle up `scrape.js` and it's dependencies into a single file called `bundle.js`:
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```bash
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browserify scrape.js -o bundle.js
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```
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`index.html`:
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```js
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<script src="bundle.js"></script>
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```
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Open `index.html` in your browser.
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