How to remove a torrent for the client?

[catchstar]

My code:

const WebTorrent = require('webtorrent')
let client = new WebTorrent();
let torrentId = 'magnet:?xt=urn:btih:1E717B83DFDC69339F260E7BAB85E8C9D87B835A';

client.add(torrentId);

client.on('torrent', function (torrent) {
    console.log(torrent)
    
   // occur an error: No torrent with id magnet
    client.remove(torrentId);
});

but if change below like that, it will be ok:

client.on('torrent', function (torrent) {
    console.log(torrent)
    
   // remove right
   setTimeout(() => {
       client.remove(torrentId);
   }, 0)
});

i'm confused by this problem.
please help me to solve the problem.Thanks a lot.

[DiegoRBaquero]

Weird because the torrent is being added before the torrent callback is emitted: https://github.com/feross/webtorrent/blob/master/index.js#L261

[feross]

@catchstar I ran your code and could not reproduce the issue with the latest version of WebTorrent.

What version of webtorrent do you have installed? Are you possibly calling client.remove() or torrent.destroy() anywhere else in your program? Since that could cause this issue.

[catchstar]

@feross my vps could reproduce the issue but i can't login in right now.Because i receive a shutdown ticket from lindode support which say my program has a copyright-infringing question.
When i solve the linode problem, i will check the webtorrent version. orz..:(

[catchstar]

@feross @DiegoRBaquero Hello, i reproduce the problem. Here my code:

const WebTorrent = require('webtorrent')
let client = new WebTorrent();

// the torrentId is different with above
let torrentId = '08BC48D2EF4887EAEBE759CA31736B6A7C6CABFB';
client.add(torrentId);

client.on('torrent', function (torrent) {
    console.log(torrent)

   // occur an TypeError: Cannot read property '_debugId' of null
   client.remove(torrentId);
});

---

webtorrent version : 0.98.16
NodeJS version: v6.10.2

i try this code on two vps and occur error either.

[catchstar]

@feross @DiegoRBaquero
i debug the program and found after destory the torrent and reset the self.client = null
https://github.com/feross/webtorrent/blob/master/lib/torrent.js#L708

and program will still run by the wire.request callback function
https://github.com/feross/webtorrent/blob/master/lib/torrent.js#L1500

it makes me feel so weird.

[lock]

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