Node.JS

Node.js Mastery Roadmap

This detailed roadmap will take you from beginner to expert in Node.js, covering fundamentals, backend development, APIs, databases, security, performance, and real-world projects.

Phase 1: Node.js Fundamentals

✅ JavaScript Prerequisites

  • ES6+ Concepts (let, const, arrow functions, async/await)

  • Promises & Callbacks

  • Modules (import/export, require)

✅ Getting Started with Node.js

  • Installing Node.js & npm

  • Running JavaScript in Node.js (node script.js)

  • REPL (Read-Eval-Print Loop)

✅ Node.js Core Modules

  • fs (File System) – Reading/Writing Files

  • path – Handling File Paths

  • os – System Info

  • events – Event Emitter

  • crypto – Hashing & Encryption

  • child_process – Running System Commands

📌 Mini Projects:

  • CLI Tool to Read & Write Files

  • Basic Event-Driven Logger

Phase 2: Node.js Backend Development

✅ Node.js with Express.js

  • Setting Up an Express Server

  • Middleware (app.use(), req, res, next())

  • Routing (app.get(), app.post(), app.put(), app.delete())

  • Handling JSON & URL-Encoded Data (express.json(), express.urlencoded())

✅ Building RESTful APIs

  • CRUD Operations (Create, Read, Update, Delete)

  • Request & Response Handling

  • Error Handling (try-catch, Express Middleware)

  • API Versioning (/api/v1/)

✅ Database Integration

  • MongoDB with Mongoose (.find(), .save(), .updateOne())

  • PostgreSQL with pg Module

  • Redis for Caching & Session Management

📌 Mini Projects:

  • Task Manager API (CRUD + MongoDB)

  • User Authentication API (JWT + bcrypt)

Phase 3: Advanced Node.js & Performance Optimization

✅ Asynchronous & Event-Driven Architecture

  • Non-Blocking I/O & Event Loop

  • Worker Threads for Multi-threading

  • Streams (fs.createReadStream(), fs.createWriteStream())

✅ Authentication & Authorization

  • JWT-Based Authentication (jsonwebtoken)

  • OAuth2 (Google, GitHub, Facebook Login)

  • Role-Based Access Control (RBAC)

✅ Security Best Practices

  • Preventing SQL Injection & NoSQL Injection

  • Data Validation (Joi, express-validator)

  • CORS & Helmet for Security

  • Rate Limiting (express-rate-limit)

📌 Mini Projects:

  • Secure File Upload System

  • Role-Based Access Control API

Phase 4: Full-Stack Node.js Development

✅ Node.js with Frontend Frameworks

  • Connecting Node.js API with React.js

  • Using WebSockets for Real-Time Apps (socket.io)

  • Server-Side Rendering (SSR) with Next.js

✅ Microservices & Scalable Architecture

  • API Gateway (Express.js, GraphQL)

  • Dockerizing Node.js Applications

  • Using Kubernetes for Container Orchestration

✅ Testing & Deployment

  • Unit Testing (Jest, Mocha, Chai)

  • CI/CD Pipelines with GitHub Actions

  • Deploying on Cloud Platforms (AWS, Vercel, DigitalOcean)

📌 Final Projects:

  • Full-Stack E-commerce App (React + Node + MongoDB)

  • Real-Time Chat App (WebSockets + Node.js + Redis)

  • Microservices-Based Blogging Platform

Final Step: Real-World Practice & Skill Testing

🔥 Platforms to Test & Improve Skills:

🚀 By mastering this roadmap, you’ll be able to: ✅ Build Scalable & Secure Node.js Applications ✅ Optimize Performance for Large-Scale Systems ✅ Develop Real-Time & Full-Stack Applications ✅ Work on Cloud-Hosted & Microservices Architectures

🔥 Start building with Node.js now!

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