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Express·Intermediate

Express JS

Minimal Node.js web framework.

Build REST APIs with Express — routing, middleware, error handling.

3 weeks

300 lessons

1 examples

Certificate on completion

// preview.express

express

const express = require('express');
const app = express();
app.get('/', (req, res) => res.send('Hi'));
app.listen(3000);

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# curriculum

0 / 300 lessons·0% complete

01What is Express.js?02History of Express.js 03Why Use Express.js?04Features of Express.js 05Express.js Architecture 06Express.js vs Node.js 07Express.js vs Fastify 08Express.js vs NestJS 09MVC Architecture 10Client-Server Architecture 11REST API Basics 12Request-Response Cycle 13Variables 14Data Types 15Operators 16Functions 17Arrow Functions 18Objects 19Arrays 20Destructuring 21Spread Operator 22Rest Parameters 23Modules (CommonJS & ES Modules)24Promises 25Async/Await 26Error Handling in JavaScript 27What is Node.js?28npm 29npx 30package.json 31package-lock.json 32Node.js Module System 33Built-in Modules 34Install Node.js 35Install Express 36VS Code Setup 37Postman Installation 38Thunder Client 39Nodemon 40dotenv 41Git & GitHub Integration 42Initialize Project 43npm init 44Installing Dependencies 45Folder Structure 46Entry File 47Running the Server 48npm Scripts 49Creating Express App 50app.listen()51app.get()52app.post()53app.put()54app.patch()55app.delete()56app.all()57Route Parameters 58Query Parameters 59req.params 60req.query 61req.body 62req.headers 63req.cookies 64req.ip 65req.method 66res.send()67res.json()68res.status()69res.redirect()70res.download()71res.sendFile()72res.render()73Static Routes 74Dynamic Routes 75Route Parameters — Advanced 76Nested Routes 77Router Module 78Modular Routing 79Route Chaining 80What is Middleware?81Types of Middleware 82Application Middleware 83Router Middleware 84Built-in Middleware 85Third-party Middleware 86Custom Middleware 87Error Middleware 88Logging Middleware 89Authentication Middleware 90express.json()91express.urlencoded()92express.static()93express.raw()94express.text()95Serving Images 96Serving CSS 97Serving JavaScript 98Downloads 99Public Folder 100EJS 101Pug 102Handlebars 103Rendering Views 104Layouts 105Partials 106REST Principles 107CRUD Operations 108HTTP Methods 109Status Codes 110JSON Responses 111API Design Best Practices 112API Versioning 113Create Endpoint 114Read Endpoints 115Update Endpoint 116Delete Endpoint 117Request Validation 118API Error Handling 119dotenv Deep Dive 120Configuration 121Secrets Management 122Multiple Environments 123try/catch 124Global Error Handler 125Custom Errors 126Async Error Handling 127Error-Handling Middleware Deep Dive 128HTTP Errors 129Multer 130Single File Upload 131Multiple File Upload 132Image Validation 133File Size Limits 134Storage Configuration 135Cookies 136cookie-parser 137express-session 138Session Storage 139Secure Cookies 140Authentication vs Authorization 141User Registration 142Login 143Logout 144Password Hashing 145bcrypt 146JWT Authentication 147Refresh Tokens 148Protected Routes 149Roles 150Permissions 151Admin Access 152User Access 153RBAC 154Middleware Authorization 155MongoDB Basics 156Atlas 157Local Database 158Mongoose 159Schemas 160Models 161CRUD with Mongoose 162Relationships 163Schema Validation 164MySQL Setup 165mysql2 Package 166Connection Pool 167CRUD with MySQL 168Joins 169Transactions 170PostgreSQL Setup 171pg Package 172CRUD with PostgreSQL 173Relations 174Mongoose as ODM 175Prisma 176Sequelize 177Drizzle ORM (Introduction)178express-validator 179Joi 180Zod 181Custom Validation 182Sanitization 183Helmet 184CORS 185Rate Limiting 186Input Validation 187SQL Injection Prevention 188NoSQL Injection Prevention 189XSS Prevention 190CSRF Protection 191Morgan 192Winston 193Request Logging 194Error Logging 195Swagger UI 196OpenAPI 197Writing API Docs 198Postman Collections 199Nodemailer 200SMTP 201Gmail 202OTP Verification 203Password Reset 204Email Templates 205Stripe 206Razorpay 207PayPal 208Payment Verification 209Webhooks 210Socket.IO 211Chat Application 212Notifications 213Live Updates 214Redis 215Memory Cache 216API Caching 217Session Store 218Jest 219Supertest 220Unit Testing 221API Testing 222Integration Testing 223Compression 224Gzip 225HTTP Caching Strategies 226Database Optimization 227Query Optimization 228Async Performance 229Secure Headers 230Password Security 231JWT Best Practices 232Secrets Management in Production 233HTTPS 234Reverse Proxy 235Security Checklist 236Controllers 237Models Layer 238Routes Layer 239Middleware Layer 240Services 241Utilities 242Config Folder 243Helpers 244PM2 245Environment Variables in Production 246Nginx 247Docker 248VPS Deployment 249Render 250Railway 251DigitalOcean 252AWS EC2 253GitHub Actions 254Automated Testing 255Deployment Pipelines 256Environment Management 257Monolith vs Microservices 258API Gateway 259Service Communication 260Event-Driven Basics 261Async Middleware 262Router-Level Middleware 263Error Boundaries 264Streams 265Child Processes 266Clustering 267Worker Threads (Overview)268Folder Structure Best Practices 269Naming Conventions 270Modular Code 271Reusable Middleware 272Environment Separation 273API Standards 274Calculator API 275Notes API 276Todo API 277Student Management API 278Product API 279Blog API 280Authentication System 281Employee Management System 282Inventory Management API 283Library Management API 284URL Shortener 285E-Commerce Backend 286Hospital Management API 287Learning Management System Backend 288Hotel Booking Backend 289Food Delivery Backend 290CRM Backend 291Express + React 292Express + Angular 293Express + Vue 294Express + Next.js 295Express + React Native 296Interview Questions — Core Concepts 297Interview Questions — Auth & Security 298Interview Questions — Data & Errors 299Interview Questions — Performance & Deployment 300Capstone: Production-Ready E-Commerce Backend

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