How to craete P2P-Graph for .torrent?

Hello,

In the example of this page (https://github.com/feross/p2p-graph/blob/master/example/index.html) it shows a simple example of P2P (not realtime P2P network as README shows: "Real-time P2P network"), but how to show this graph based on .torrent or magnet URI? Like webtorrent.io?

Thank you.