Node.js's cluster module, which allows for the creation of multiple instances of a Node.js application to utilize multiple CPU cores effectively. Cluster is following round-robin approach. Workload is equally distribute in our servers and Handling traffic. Example of Cluster with Node.jsconst express = require('express');const...

Node.js handle uncaught exceptions Node.js handle uncaught exceptions Node.js handle uncaught exceptions const express = require('express');const app = express();// Middleware to parse JSON requestsapp.use(express.json());// A sample routeapp.get('/', (req, res) => {    res.send('Welcome to the...

 Node.js with Sample : Mock API using expressconst express = require('express');const app = express();const PORT = 3000;// Mock dataconst users = [  { id: 1, name: 'John Doe', email: 'john.doe@example.com' },  { id: 2, name: 'Jane Smith', email: 'jane.smith@example.com' },  { id: 3, name: 'Sam Johnson',...

Express using create server.const express = require('express');const app = express();// Middleware to parse JSON body dataapp.use(express.json());// Custom Middleware to Modify Request Dataapp.use((req, res, next) => {  if (req.body && typeof req.body === 'object') {    // Add a new property to...

In Node.js, you can create a server using the built-in http module. const http = require('http');const server = http.createServer((req, res) => {  res.writeHead(200, {'Content-Type': 'text/plain'});  res.end('Hello, World!\n');});const port = 3000;server.listen(port, () => {  console.log(`Server...

In Node.js, middleware is a function that acts as an intermediary between software layers to process incoming requests and outgoing responses.const express = require('express');const app = express();const middleFunc = (req, res, next) => {    req.customText = "Test middleware function...";    next();}app.use(middleFunc);app.get('/',...

The event-driven architecture allows asynchronous/synchronous programming, and your application becomes able to perform non-blocking/blocking operations. EventEmitter class is part of the events module in Node.js. EventEmitter Methods : .on, .emit (Triggers the event), .once(executes only once), removeListener(Removes...