first

signal-server.mjs

@@ -0,0 +1,23 @@
+import express from 'express';
+import { WebSocketServer } from 'ws';
+
+const app = express();
+const server = app.listen(3001, () => console.log('Signal server on port 3001'));
+const wss = new WebSocketServer({ server });
+
+const peers = new Map();
+
+wss.on('connection', (ws) => {
+    const id = Math.random().toString(36).substring(2, 9);
+    peers.set(id, ws);
+    ws.send(JSON.stringify({ type: 'your-id', id }));
+
+    ws.on('message', (data) => {
+        const msg = JSON.parse(data);
+        if (msg.target && peers.has(msg.target)) {
+            peers.get(msg.target).send(JSON.stringify(msg));
+        }
+    });
+
+    ws.on('close', () => peers.delete(id));
+});