Files are always null

[KeizerDev]

Understanding example gives files: null, how can I fix that?

var client = new WebTorrent()

var torrentId = 'magnet:?xt=urn:btih:6a9759bffd5c0af65319979fb7832189f4f3c35d'

client.add(torrentId, function (torrent) {
  var file = torrent.files[0]
  file.appendTo('body') // append the file to the DOM
})

[feross]

Please provide more details. Are you running this in node.js or the browser? Which version of node or browser are you using?

What do you mean it "gives files: null"?

[KeizerDev]

I'm using Google Chrome 46.0.2490.80.
When I just grabbing a random magnet link with a mp4 video, client.torrents[0]['files'], returns null

[andreapaiola]

WebTorrent or BitTorrent?

[DiegoRBaquero]

The code you first posted doesn't have client.torrents[0]['files'] ...

It seems you are trying to access the files property before it has even downloaded the metadata.

Can you post the full code please?

[KeizerDev]

@DiegoRBaquero No, just run it in your console

[KeizerDev]

Yeah that's my point, the metadata never gets downloaded.. 👎

[DiegoRBaquero]

I just tested in BTorrent with the magnet of the example, it works. Do you have your code hosted somewhere? Maybe jsfiddle or plunker?

https://www.dropbox.com/s/7iw6ec2fk2otw0x/Screenshot%202016-01-12%2014.20.13.png?dl=0

[feross]

@KeizerDev If you won't post your full code then we can't help you beyond what we've already tried.

@DiegoRBaquero is right. It sounds like you're trying to use the torrent object before the callback has fired. The sample code you provided works fine for me.

You shouldn't do client.torrents[0]['files']. You should wait for the callback to fire.

[KeizerDev]

@DiegoRBaquero and @feross my full code is actually:

var client = new WebTorrent()

var torrentId = 'magnet:?xt=urn:btih:6a9759bffd5c0af65319979fb7832189f4f3c35d'

client.add(torrentId, function (torrent) {
  var file = torrent.files[0]
  file.appendTo('body') // append the file to the DOM
})

This will work as you guys said, I just had to wait, BUT when I change the magnet link to something like magnet:?xt=urn:btih:21AC20E0976C373B8372D1637F075AD0BEEFCAD6&dn=the+last+witch+hunter+2015+720p+webrip+x264+aac+etrg&tr=udp%3A%2F%2Ftracker.publicbt.com%3A80%2Fannounce&tr=udp%3A%2F%2Fglotorrents.pw%3A6969%2Fannounce and refire the script after a page reload, the callback will never been fired, or it just takes way to long but I didn't had time to wait that long (Fyi, this is a mp4 movie, found just some where on the internet 😃). How can I fix this, what can cause this?

[DiegoRBaquero]

Because, for the 1000th time, that torrent is not in the webrtc network. Also, please do NOT use WebTorrent for copyright infringement.

Please read this part of the FAQ:

Why does browser downloading not work? I see no peers!

It does work! But you can't just use any random magnet uri or .torrent file. The torrent must be seeded by a WebRTC-capable client, i.e. webtorrent-hybrid, instant.io, or Playback.

In the browser, WebTorrent can only download torrents that are explicitly seeded to web peers via a WebRTC-capable client. Desktop torrent clients need to support WebRTC to connect to web browsers.