gundb torrent signalling example

an example on how to solve the problem of webrtc signalling for gundb by the use of a websocket proxy, heavily inspired by Dletta 2021 and https://github.com/Dletta/dht-proxy/blob/main/websocketproxy.js

what it uses:

• gundb
• trystero (webrtc signalling using webtorrent signalling)
• vanjs (for frontent ui)

how it works:

0. setup a private webtorrent tracker on a public url

1. an infohash is generated for app_id: 'gundb_torrent_signalling_test' and room_id: 'test'

   > npm run create_info_hash gundb_torrent_signalling_test test
   3665367962366f34703164316e32353666357733
   

2. a config.json is created:

   {
       "infoHashHex": "3665367962366f34703164316e32353666357733",
       "appId": "gundb_torrent_signalling_test",
       "roomName": "test",
       "trackerUrls":["wss://tracker.com"]
   }

3. a set of public and private credentials for the app is created, resulting in creds.client.json and creds.server.json

> npm run create_root_key

4. db is initialized with config.json and creds (this initializes the proxy and thereby the trystero webtorrent signalling)

   const db = setupDb(config, creds)

5. edit bin/tracker.js so that it has your infohash in the whitelist
6. run your private tracker on a public ip: npm run tracker

from here on the db is ready and will maintain its webrtc connections without bothering gundb