Building Scalable Microservices with Node.js

Understanding Microservices

Microservices architecture has emerged as a dominant pattern for building scalable and maintainable applications. This approach breaks down complex systems into smaller, independent services.

Core Principles

• Single responsibility per service
• Independent deployment
• Data isolation
• Fault tolerance

// Example Node.js microservice
const express = require("express");
const app = express();

app.get("/api/users", async (req, res) => {
  const users = await userService.getAll();
  res.json(users);
});

app.listen(3000);

Node.js is particularly well-suited for microservices due to its event-driven architecture and lightweight runtime.