feat: add new file

server/index.js

@@ -0,0 +1,34 @@
+const http = require('http')
+const express = require('express')
+const cors = require('cors')
+const { WebSocketServer } = require('ws')
+const routes = require('./routes')
+const { getSituation } = require('./situationData')
+
+const app = express()
+const PORT = process.env.API_PORT || 3001
+
+app.use(cors())
+app.use(express.json())
+app.use('/api', routes)
+app.get('/api/health', (_, res) => res.json({ ok: true }))
+
+const server = http.createServer(app)
+
+const wss = new WebSocketServer({ server, path: '/ws' })
+wss.on('connection', (ws) => {
+  ws.send(JSON.stringify({ type: 'situation', data: getSituation() }))
+})
+function broadcastSituation() {
+  try {
+    const data = JSON.stringify({ type: 'situation', data: getSituation() })
+    wss.clients.forEach((c) => {
+      if (c.readyState === 1) c.send(data)
+    })
+  } catch (_) {}
+}
+setInterval(broadcastSituation, 5000)
+
+server.listen(PORT, () => {
+  console.log(`API + WebSocket running at http://localhost:${PORT}`)
+})