🚀 Full-Stack & Real-Time Projects Repository

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A curated collection of enterprise-grade, full-stack projects demonstrating secure authentication, media handling, real-time systems, and scalable backend architecture. Built with production standards, clean code principles, and industry best practices.

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👨‍💻 Developer Profile

Prince Kumar — Full Stack Developer | Backend Specialist

• ✉️ Email: parag31ja@gmail.com
• 🔗 LinkedIn: https://www.linkedin.com/in/princekumar3111
• 💻 GitHub: https://github.com/AnakinCodeWalker

Specialization: Backend architecture, authentication systems, real-time communication, and scalable microservices.

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🛠️ Technology Stack

Backend (Node.js Ecosystem)

Frontend (React Ecosystem)

Real-Time & Infrastructure

Security & Validation

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📂 Projects

Portfolio Strategy: Completed projects first → Ongoing projects last

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🔐 Project 1: AuthSystem — Enterprise Authentication Backend

Status: ✅ PRODUCTION READY
Location: Projects/AuthSystem

Core Responsibilities Demonstrated

• Authentication Flow: Complete user lifecycle (signup → email verify → login → token refresh → logout)
• Security Implementation: JWT strategy, bcrypt hashing, HTTP-only cookies
• Backend Architecture: Controllers, middleware, models, utils separation
• Database Design: User schema with email verification, token storage
• Email Integration: Nodemailer service with verification tokens

Technical Highlights for PwC Interview

JWT Access Token (15 min) ──> Refresh Token (7 days) ──> New Access Token
              │
         httpOnly Cookie (secure transport)
              │
         Database validation & cleanup

Tech Stack:

• Node.js, Express.js
• MongoDB + Mongoose
• JWT (access + refresh)
• bcrypt, Zod, Nodemailer

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🧠 Project 2: Brainly-App — React + TypeScript Frontend

Status: ✅ COMPLETE
Location: Projects/typeScript-Project/Brainly-App

Core Responsibilities Demonstrated

• Type-Safe Components: TypeScript interfaces for all props
• API Integration: REST client setup, error handling
• State Management: React hooks (useState, useEffect, useContext)
• Clean Architecture: Reusable components, proper separation

Technical Highlights

Q&A Platform Architecture:
├── Questions Component
├── Answers Component
├── User Profiles
└── Search & Filter

Tech Stack:

• React 18+
• TypeScript
• REST APIs
• Component composition

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🎥 Project 3: VideoVerse — Media Platform Backend

Status: ✅ PRODUCTION READY
Location: Projects/VideoVerse_Backend
Time to Understand: 8-12 minutes

Core Responsibilities Demonstrated

• File Upload Pipeline: Multer → validation → Cloudinary → cleanup
• User Management: Profiles with avatar & cover images
• Cloud Integration: Cloudinary API integration
• Security: JWT authentication on protected routes
• Scalability: Proper error handling, cleanup mechanisms

Tech Stack:

• Node.js, Express.js
• MongoDB + Mongoose
• Multer (file upload)
• Cloudinary (media storage)
• JWT authentication

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🚧 Project 4: PeerMeet — Real-Time Video Platform (ONGOING)

Status: 🔄 IN DEVELOPMENT
Location: Projects/PeerMeet
Time to Understand: 10-15 minutes

Core Responsibilities Demonstrated

• WebRTC Implementation: P2P audio/video streaming
• Real-Time Signaling: Socket.IO for connection establishment
• Room Management: Participant tracking, join/leave events
• Backend Infrastructure: Session management, authentication

Tech Stack:

• Frontend: React, TypeScript
• Backend: Node.js, Express, MongoDB
• Real-Time: WebRTC, Socket.IO
• Authentication: JWT

Current Implementation Status:

• ✅ User authentication & authorization
• ✅ Room creation & management
• ✅ Participant tracking system
• ✅ WebRTC signaling protocol
• ✅ ICE candidate exchange
• ✅ SDP offer/answer handling
• 🔄 Frontend UI components
• 🔄 Media stream integration
• 📋 Screen sharing (planned)
• 📋 Recording (planned)

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## 🔒 Security & Best Practices Implemented

### Authentication & Authorization
- ✅ JWT-based authentication (access + refresh tokens)
- ✅ Secure password hashing (bcrypt with salt rounds)
- ✅ HTTP-only cookies (prevent XSS)
- ✅ CORS configuration (prevent CSRF)
- ✅ Email verification (prevent spam)
- ✅ Token expiry & cleanup (prevent token reuse)

### Data Validation
- ✅ Zod schema validation (request body)
- ✅ TypeScript type safety (compile-time errors)
- ✅ File type & size validation (prevent attacks)
- ✅ Input sanitization (prevent injection)

### Database Security
- ✅ Password hashing (never store plain text)
- ✅ Sensitive data encryption
- ✅ Proper indexing (prevent N+1 queries)
- ✅ Connection pooling (resource management)


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### Clone & Install
```bash
git clone https://github.com/AnakinCodeWalker/Projects.git
cd Projects

🎓 Learning Resources

Authentication & JWT

• JWT Best Practices
• Refresh Token Rotation
• bcrypt Algorithm

WebRTC & Real-Time

• MDN WebRTC API
• WebRTC Signaling
• Socket.IO Guide

Backend Architecture

• Express.js Best Practices
• MongoDB Schema Design
• RESTful API Design

General

• System Design Primer
• Clean Code Principles

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📞 Contact & Open to Opportunities

I'm actively looking for:

• Backend/Full-Stack internships
• Entry-level software engineer roles
• Open-source contributions

Get in touch:

• 📧 Email: parag31ja@gmail.com
• 🔗 LinkedIn: https://www.linkedin.com/in/princekumar3111
• 💻 GitHub: @AnakinCodeWalker

Available for:

• Technical discussions
• Architecture deep-dives
• Code reviews
• Pair programming

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📝 License

MIT License - See LICENSE file for details

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Building Production-Ready Systems
One line of code at a time

Made with ❤️ by Prince Kumar
Ready for PwC Launchpad 🚀