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I have some trouble with the the example showed in I'm trying to use the code in browser. So I first create a file called app.js

app.js

var WebTorrent = require('webtorrent')
var concat = require('concat-stream')

var client = new WebTorrent()
console.log('Hi there');
client.download('magnet:?xt=urn:btih:XXXXXXXX', function (torrent) {
  // Got torrent metadata!
  console.log('Torrent info hash:', torrent.infoHash)

  torrent.files.forEach(function (file) {
    // Get the file data as a Buffer (Uint8Array typed array)
    file.createReadStream().pipe(concat(function (buf) {

      // Append a link to download the file
      var a = document.createElement('a')
      a.download = file.name
      a.href = URL.createObjectURL(new Blob([ buf ]))
      a.textContent = 'download ' + file.name
      document.body.appendChild(a)
    }))
  })
})

Then I type mand browserify app.js > bundle.js so that can make code work for browser. I create another file called index.html:

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>test</title>
    <script src="bundle.js"></script>
</head>

<body id="home">

    <h1>test</h1>


</body>
</html>

From the console I can only see "Hi there". It seems that the client.download() function didn't work. Why this happened? I'm new to browserify, is there anything wrong with the mand which I use?

I have some trouble with the the example showed in https://github./feross/webtorrent#usage I'm trying to use the code in browser. So I first create a file called app.js

app.js

var WebTorrent = require('webtorrent')
var concat = require('concat-stream')

var client = new WebTorrent()
console.log('Hi there');
client.download('magnet:?xt=urn:btih:XXXXXXXX', function (torrent) {
  // Got torrent metadata!
  console.log('Torrent info hash:', torrent.infoHash)

  torrent.files.forEach(function (file) {
    // Get the file data as a Buffer (Uint8Array typed array)
    file.createReadStream().pipe(concat(function (buf) {

      // Append a link to download the file
      var a = document.createElement('a')
      a.download = file.name
      a.href = URL.createObjectURL(new Blob([ buf ]))
      a.textContent = 'download ' + file.name
      document.body.appendChild(a)
    }))
  })
})

Then I type mand browserify app.js > bundle.js so that can make code work for browser. I create another file called index.html:

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>test</title>
    <script src="bundle.js"></script>
</head>

<body id="home">

    <h1>test</h1>


</body>
</html>

From the console I can only see "Hi there". It seems that the client.download() function didn't work. Why this happened? I'm new to browserify, is there anything wrong with the mand which I use?

  • javascript
  • html
  • browserify
  • webtorrent
Share Improve this question edited Jun 4, 2015 at 13:00 Wingman4l7 6781 gold badge8 silver badges23 bronze badges asked Nov 19, 2014 at 18:54 Chuang FuChuang Fu 3172 gold badges6 silver badges17 bronze badges
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1 Answer 1

Reset to default 9

WebTorrent can only download torrents that are explicitly seeded to the WebTorrent network. Torrent clients need to support WebRTC to peer with web browsers. Currently, no clients support it but you can use http://instant.io to start seeding a new torrent and try downloading it using the WebTorrent library in your application. Enable debug logs on http://instant.io by setting `localStorage.debug = '*' to get the info-hash of the torrent.

You can also learn more here:

  • How does WebTorrent work? (https://github./feross/webtorrent/issues/39)
  • WebRTC BEP (https://github./feross/webtorrent/issues/175)

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