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Installation

npm install socket-serve ioredis express
npm install -D @types/express

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Server Setup

Create server.ts: 
import express from 'express';
import { createSocketServer } from 'socket-serve';
import { createExpressAdapter } from 'socket-serve/adapters';

const app = express();
const port = process.env.PORT || 3000;

const socketServer = createSocketServer({
  redisUrl: process.env.REDIS_URL!
});

socketServer.on('connection', (socket) => {
  console.log('Client connected:', socket.id);
  
  socket.on('message', (data) => {
    socket.emit('response', { echo: data });
  });
  
  socket.on('disconnect', () => {
    console.log('Client disconnected:', socket.id);
  });
});

// Mount socket adapter
const socketAdapter = createExpressAdapter(socketServer);
app.use('/socket', socketAdapter);

// Static files
app.use(express.static('public'));

app.listen(port, () => {
  console.log(`Server running on http://localhost:${port}`);
});

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Client Setup

Create public/index.html: 
<!DOCTYPE html>
<html>
<head>
  <title>socket-serve Demo</title>
</head>
<body>
  <div id="status">Connecting...</div>
  
  <script type="module">
    import { connect } from '/socket/client.js';
    
    const socket = connect('/socket');
    const status = document.getElementById('status');
    
    socket.on('connect', () => {
      status.textContent = 'Connected';
    });
    
    socket.on('disconnect', () => {
      status.textContent = 'Disconnected';
    });
  </script>
</body>
</html>

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Environment Configuration

Create .env: 
REDIS_URL=redis://localhost:6379
PORT=3000

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Development

npx tsx watch server.ts

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Production Build

// tsconfig.json
{
  "compilerOptions": {
    "target": "ES2020",
    "module": "ESNext",
    "outDir": "dist",
    "strict": true,
    "esModuleInterop": true
  }
}
Build and run: 
npx tsc
node dist/server.js

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Deployment

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Docker

Dockerfile: 
FROM node:20-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci --production
COPY . .
EXPOSE 3000
CMD ["node", "dist/server.js"]

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Environment Variables

Production configuration: 
REDIS_URL=rediss://default:xxx@xxx.upstash.io:6379
PORT=3000
NODE_ENV=production

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Next Steps