Building Microservices with Node.js

Microservices architecture has become a popular approach for building scalable applications. Let's explore how to implement it using Node.js.

Architecture Overview

• Service Discovery
• API Gateway
• Message Queues
• Containerization

Implementation Example

// Example of a microservice using Express
const express = require("express");
const app = express();

app.get("/api/users", async (req, res) => {
  try {
    const users = await userService.getAllUsers();
    res.json(users);
  } catch (error) {
    res.status(500).json({ error: error.message });
  }
});

// Service registration
const serviceRegistry = {
  register: (service) => {
    // Implementation
  },
};

Best Practices

1. Use containerization
2. Implement circuit breakers
3. Handle service discovery
4. Monitor service health