ExpressJs — Microservices with Express

Break large monolithic apps into smaller microservices, each handling a specific domain or functionality. This improves scalability and code maintainability.

// user-service.js
const express = require('express');
const app = express();

app.get('/users', (req, res) => res.json([{ id: 1, name: 'Alice' }]));

app.listen(4000, () => console.log('User service running on port 4000'));

// API Gateway can route requests to different services.