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.

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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

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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)

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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

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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

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Final Step: Real-World Practice & Skill Testing

🔥 Platforms to Test & Improve Skills:

• Backend Challenges on LeetCode

• Node.js Projects on GitHub

• Node.js Security Best Practices

🚀 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!