add logging to demo-server

demo-server/demo-server.js

@@ -5,7 +5,9 @@
 const WebSocket = require('ws')
 const http = require('http')
 const StaticServer = require('node-static').Server
-const setupWSConnection = require('y-websocket/bin/utils').setupWSConnection
+const ywsUtils = require('y-websocket/bin/utils')
+const setupWSConnection = ywsUtils.setupWSConnection
+const docs = ywsUtils.docs
 const env = require('lib0/environment')
 const nostatic = env.hasParam('--nostatic')
 
@@ -35,6 +37,17 @@ wss.on('connection', (conn, req) => {
   setupWSConnection(conn, req, { gc: req.url.slice(1) !== 'ws/prosemirror-versions' })
 })
 
+// log some stats
+setInterval(() => {
+  let conns = 0
+  docs.forEach(doc => { conns += doc.conns.size })
+  const stats = {
+    conns,
+    docs: docs.size
+  }
+  console.log(`${new Date().toISOString()} Stats: ${JSON.stringify(stats)}`)
+}, 10000)
+
 server.listen(port, '0.0.0.0')
 
 console.log(`Listening to http://localhost:${port} (${production ? 'production + ' : ''} ${nostatic ? 'no static content' : 'serving static content'})`)

prosemirror/prosemirror.js

@@ -11,7 +11,7 @@ import { keymap } from 'prosemirror-keymap'
 
 window.addEventListener('load', () => {
   const ydoc = new Y.Doc()
-  const provider = new WebsocketProvider('wss://demos.yjs.dev/ws', 'prosemirror-demo', ydoc)
+  const provider = new WebsocketProvider('ws://localhost:3000/ws', 'prosemirror-demo', ydoc)
   const yXmlFragment = ydoc.getXmlFragment('prosemirror')
 
   const editor = document.createElement('div')