genesis

server.js

@@ -0,0 +1,51 @@
+const express = require('express');
+const WebSocket = require('ws');
+const http = require('http');
+
+const app = express();
+const server = http.createServer(app);
+const wss = new WebSocket.Server({ server, path: '/counter-ws' });
+
+let counter = 0; // In-memory counter (resets on server restart)
+
+app.use(express.json());
+
+// API endpoint to get current counter value
+app.get('/api/counter', (req, res) => {
+  res.json({ value: counter });
+});
+
+// API endpoint to increment counter
+app.post('/api/counter/increment', (req, res) => {
+  counter += 1;
+  res.json({ value: counter });
+
+  // Broadcast update to all connected WebSocket clients
+  wss.clients.forEach(client => {
+    if (client.readyState === WebSocket.OPEN) {
+      client.send(JSON.stringify({ type: 'counter-update', value: counter }));
+    }
+  });
+});
+
+// WebSocket connection handling
+wss.on('connection', (ws) => {
+  console.log('Client connected');
+
+  ws.on('message', (message) => {
+    console.log('Received:', Buffer.from(message).toString());
+  });
+
+  ws.on('error', (error) => {
+    console.log('WebSocket error:', error);
+  });
+
+  ws.on('close', (code, reason) => {
+    console.log('Client disconnected', 'Code:', code, 'Reason:', reason.toString());
+  });
+});
+
+const PORT = 3001; // API and WebSocket server port
+server.listen(PORT, '127.0.0.1', () => {
+  console.log(`Server running on http://127.0.0.1:${PORT}`);
+});