🚀 DevDudes - Full-Stack Developer Connection Platform

Building connections through clean code and creative UI

Live Demo • API Documentation • Report Bug

📋 Table of Contents

🌟 Overview
✨ Key Features
🏗️ Architecture
🛠️ Tech Stack
🚀 Getting Started
📁 Project Structure
🔧 Installation
🌐 API Endpoints
💳 Payment Integration
📱 Real-time Features
🔐 Security Features
📊 Database Schema
🎨 UI/UX Design
⚡ Performance
🚀 Deployment
🧪 Testing
📈 Analytics & Monitoring
🤝 Contributing
📝 License
👨‍💻 Author

🌟 Overview

DevDudes is a modern, full-stack web application designed to connect developers, designers, and tech enthusiasts from around the world. Think of it as "Tinder for Developers" - a platform where professionals can discover, connect, and collaborate with like-minded individuals in the tech industry.

🎯 Mission

To bridge the gap between talented developers by creating meaningful professional connections that foster collaboration, knowledge sharing, and career growth in the ever-evolving tech landscape.

🌍 Impact

50+ Active Users
70+ Successful Connections Made
50+ Cross-platform Collaborations

✨ Key Features

🔥 Core Functionality

Smart Matching Algorithm: AI-powered suggestions based on interests and location
Swipe-based Discovery: Intuitive Tinder-like interface for browsing developer profiles
Real-time Messaging: Instant chat system with Socket.IO integration
Premium Memberships: Advanced features with Razorpay payment integration
Profile Customization: Rich profiles with portfolio links and social media integration

🎨 User Experience

Responsive Design: Seamless experience across all devices (Mobile-first approach)
Dark Mode UI: Modern, eye-friendly interface with gradient backgrounds
Interactive Animations: Smooth transitions powered by GSAP
Progressive Web App: Installable PWA with offline capabilities

🔐 Security & Authentication

JWT-based Authentication: Secure session management
OTP Verification: Email-based account verification
Password Reset Flow: Secure password recovery system
Data Encryption: bcrypt password hashing with salt rounds

💼 Professional Features

Portfolio Integration: Showcase projects and GitHub repositories
Connection Requests: Professional networking with accept/reject system
Premium Analytics: Advanced insights for premium users

🏗️ Architecture

graph TB
    A[Client - React SPA] --> B[Load Balancer - Nginx]
    B --> C[Node.js Express Server]
    C --> D[MongoDB Atlas]
    C --> E[Socket.IO Server]
    C --> F[Razorpay Payment Gateway]
    C --> G[AWS SES Email Service]
    C --> H[Redis Cache]

    subgraph "External Services"
        F
        G
        I[AWS S3 - File Storage]
    end

    subgraph "Monitoring"
        J[PM2 Logs]
        K[PM2 Process Manager]
    end

🎯 Key Architectural Decisions

Microservices-ready: Modular structure for easy scaling
RESTful API Design: Clean, intuitive endpoint structure
Real-time Communication: WebSocket integration for instant messaging
Cloud-native: AWS services for scalability and reliability

🛠️ Tech Stack

Frontend

Framework: React 19.1.1 with Hooks and Context API
Styling: Tailwind CSS 4.1.12 + DaisyUI 5.0.54
State Management: Redux Toolkit with Redux Persist
Routing: React Router DOM 7.8.2
Build Tool: Vite 7.1.2 (Lightning-fast development)
Animations: GSAP 3.13.0 for smooth interactions
HTTP Client: Axios 1.11.0 with interceptors

Backend

Runtime: Node.js 18+ with Express.js 5.1.0
Database: MongoDB 8.17.2 with Mongoose ODM
Authentication: JWT + bcrypt for password hashing
Real-time: Socket.IO 4.8.1 for instant messaging
Email Service: AWS SES + Nodemailer 7.0.6
Payment Processing: Razorpay 2.9.6 integration
Validation: Validator.js for data sanitization
Cron Jobs: Node-cron 4.2.1 for scheduled tasks

DevOps & Infrastructure

Deployment: AWS EC2 with PM2 process manager
Reverse Proxy: Nginx with SSL termination
Database: MongoDB Atlas (Cloud)
CDN: CloudFlare for global content delivery
SSL: Let's Encrypt certificates
Monitoring: Winston logging + AWS CloudWatch

🚀 Getting Started

Prerequisites

node >= 18.0.0
npm >= 8.0.0
MongoDB >= 6.0.0
Git

Quick Start

# Clone the repository
git clone https://github.com/jsanjaikumar/Devdudes---FullStack-web-Application.git
cd Devdudes---FullStack-web-Application

# Install dependencies for both frontend and backend
npm run install:all

# Set up environment variables
cp Backend/.env.example Backend/.env
cp Frontend/.env.example Frontend/.env

# Start development servers
npm run dev

Your application will be running on:

Frontend: http://localhost:5173
Backend: http://localhost:3000

📁 Project Structure

DevDudes/
├── 📁 Backend/                 # Node.js Express Server
│   ├── 📁 src/
│   │   ├── 📁 config/          # Database & external service configs
│   │   ├── 📁 middlewares/     # Authentication & validation middleware
│   │   ├── 📁 models/          # MongoDB schemas
│   │   ├── 📁 routes/          # API route handlers
│   │   └── 📁 utils/           # Helper functions & utilities
│   ├── 📄 package.json
│   └── 📄 apiList.md          # API documentation
│
├── 📁 Frontend/                # React SPA
│   ├── 📁 src/
│   │   ├── 📁 components/      # Reusable React components
│   │   ├── 📁 utils/           # Redux store & helper functions
│   │   └── 📁 assets/          # Static assets
│   ├── 📁 public/              # Public assets & PWA files
│   ├── 📄 package.json
│   └── 📄 vite.config.js       # Vite configuration
│
└── 📄 README.md               # This file

🔧 Installation

1. Backend Setup

cd Backend
npm install

# Create environment file
cp .env.example .env

Backend Environment Variables

# Server Configuration
PORT=
NODE_ENV=

# Database
DB_CONNECTION_SECRET=

# JWT Secret
JWT_SECRET=

# Email Configuration (SMTP)
SMTP_HOST=
SMTP_PORT=
SMTP_USER=
SMTP_PASS=

# AWS SES (Alternative email service)
AWS_ACCESS_KEY=
AWS_SECRET_KEY=

# Razorpay Payment Gateway
RAZORPAY_KEY_ID=
RAZORPAY_KEY_SECRET=
WEBHOOK_SECRET=

2. Frontend Setup

cd Frontend
npm install

# Create environment file (if needed)
cp .env.example .env

Frontend Environment Variables

VITE_API_BASE_URL=
VITE_SOCKET_URL=
VITE_APP_NAME=

3. Database Setup

# Start MongoDB locally (if not using MongoDB Atlas)
mongod --dbpath /path/to/your/db

# Or use MongoDB Atlas (recommended)
# Create account at https://cloud.mongodb.com
# Get connection string and add to Backend/.env

🌐 API Endpoints

Authentication Routes

POST /signup              # User registration
POST /login               # User authentication
POST /logout              # User logout
POST /send-otp           # Send OTP for verification
POST /verify-otp         # Verify OTP code
POST /forgot-password    # Request password reset
POST /reset-password     # Reset user password

Profile Management

GET  /profile/view       # Get user profile
PATCH /profile/edit      # Update profile information
PATCH /profile/password  # Change password

Connection System

POST /request/send/:status/:userId        # Send connection request
POST /request/review/:status/:requestId   # Accept/reject request
GET  /user/connections                    # Get user connections
GET  /user/requests/received              # Get pending requests

Discovery & Feed

GET /feed                # Get user suggestions
GET /user/feed           # Alternative feed endpoint

Real-time Chat

GET /chat/:targetUserId  # Get chat messages

Payment System

POST /payment/create     # Create payment order
POST /payment/webhook    # Razorpay webhook handler
GET  /premium/verify     # Verify premium status

WebSocket Events

// Client to Server
socket.emit("joinChat", { firstName, userId, targetUserId });
socket.emit("sendMessage", { text, firstName, lastName, userId, targetUserId });

// Server to Client
socket.on("messageReceived", { text, firstName, lastName });

💳 Payment Integration

Razorpay Integration

DevDudes uses Razorpay for secure payment processing with two premium tiers:

Membership Plans

const membershipPlans = {
  silver: {
    price: "₹299",
    duration: "3 months",
    features: [
      "Unlimited chat access",
      "100 connection requests per day",
      "Profile badge (Blue Tick)",
      "Priority in search results",
      "Basic analytics",
    ],
  },
  gold: {
    price: "₹699",
    duration: "6 months",
    features: [
      "Unlimited chat access",
      "Unlimited connection requests",
      "Prominent Blue Tick",
      "Top placement in recommendations",
      "Advanced analytics and insights",
      "Priority support",
    ],
  },
};

Payment Flow

User selects membership plan
Frontend calls /payment/create API
Razorpay order created with order ID
Payment popup opens with Razorpay checkout
On successful payment, webhook updates user status
User gains premium features instantly

📱 Real-time Features

Socket.IO Implementation

// Real-time messaging system
const initializeSocket = (server) => {
  const io = socket(server, {
    cors: { origin: "http://localhost:5173" },
  });

  io.on("connection", (socket) => {
    // User joins chat room
    socket.on("joinChat", ({ firstName, userId, targetUserId }) => {
      const roomId = getSecretRoomId(userId, targetUserId);
      socket.join(roomId);
    });

    // Handle message sending
    socket.on("sendMessage", async (messageData) => {
      // Store message in MongoDB
      // Broadcast to room participants
    });
  });
};

Features

Private Chat Rooms: Secure 1-on-1 messaging
Message Persistence: Chat history stored in MongoDB
Real-time Notifications: Instant message delivery
Online Status: See when users are active
Typing Indicators: Know when someone is typing

🔐 Security Features

Authentication & Authorization

// JWT middleware
const userAuth = async (req, res, next) => {
  const { token } = req.cookies;
  const decoded = jwt.verify(token, process.env.JWT_SECRET);
  const user = await User.findById(decoded._id);
  req.user = user;
  next();
};

Security Measures

Password Hashing: bcrypt with 10 salt rounds
JWT Tokens: Secure session management with 7-day expiry
OTP Verification: 6-digit OTP with 5-minute expiry
Input Validation: Server-side validation using validator.js
CORS Protection: Configured for specific origins
Rate Limiting: API rate limiting to prevent abuse
SQL Injection Prevention: MongoDB/Mongoose protection
XSS Protection: Input sanitization and validation

Data Privacy

Minimal Data Collection: Only essential information stored
GDPR Compliant: User data deletion and export capabilities
Encrypted Communication: HTTPS/WSS in production
Secure Cookies: HttpOnly, Secure, SameSite attributes

📊 Database Schema

User Model

const userSchema = {
  firstName: { type: String, required: true, minLength: 3 },
  lastName: { type: String, maxLength: 50 },
  emailId: { type: String, required: true, unique: true },
  password: { type: String, required: true },
  age: { type: Number, min: 18 },
  gender: { type: String, enum: ["male", "female", "others"] },
  photoUrl: { type: String, validate: validator.isURL },
  about: { type: String, maxLength: 200 },
  skills: [{ type: String, maxLength: 10 }],
  isPremium: { type: Boolean, default: false },
  membershipType: { type: String },
  isEmailVerified: { type: Boolean, default: false },
  verifyOtp: String,
  verifyOtpExpiryAt: Number,
};

Connection Request Model

const connectionRequestSchema = {
  fromUserId: { type: ObjectId, ref: "User", required: true },
  toUserId: { type: ObjectId, ref: "User", required: true },
  status: {
    type: String,
    enum: ["interested", "ignored", "accepted", "rejected"],
    required: true,
  },
};

Chat Model

const chatSchema = {
  participants: [{ type: ObjectId, ref: "User", required: true }],
  messages: [
    {
      senderId: { type: ObjectId, ref: "User", required: true },
      text: { type: String, required: true },
      createdAt: { type: Date, default: Date.now },
    },
  ],
};

Payment Model

const paymentSchema = {
  userId: { type: ObjectId, ref: "User", required: true },
  orderId: { type: String, required: true },
  paymentId: String,
  status: { type: String, required: true },
  amount: { type: Number, required: true },
  currency: { type: String, required: true },
  notes: {
    firstName: String,
    lastName: String,
    membershipType: String,
  },
};

Database Indexes

// Optimized queries with compound indexes
userSchema.index({ firstName: 1, lastName: 1 });
connectionRequestSchema.index({ fromUserId: 1, toUserId: 1 });
chatSchema.index({ participants: 1 });
paymentSchema.index({ userId: 1, orderId: 1 });

🎨 UI/UX Design

Design System

Color Palette: Dark theme with purple/fuchsia accents
Typography: DM Sans font family
Components: Tailwind CSS + DaisyUI component library
Responsive: Mobile-first approach with breakpoints
Accessibility: WCAG 2.1 AA compliant

Component Architecture

// Reusable component structure
const UserCard = ({ user, onAction }) => (
  <div className="gradient-card">
    <UserAvatar src={user.photoUrl} />
    <UserInfo user={user} />
    <ActionButtons
      onIgnore={() => onAction("ignore")}
      onInterested={() => onAction("interested")}
    />
  </div>
);

Key UI Features

Swipeable Cards: Touch-friendly interaction
Gradient Backgrounds: Modern visual appeal
Loading States: Skeleton loaders and spinners
Error Handling: User-friendly error messages
Toast Notifications: Success/error feedback
Modal Dialogs: Profile editing and settings

⚡ Performance

Frontend Optimizations

// Code splitting with React.lazy
const Feed = lazy(() => import("./components/Feed"));
const Chat = lazy(() => import("./components/Chat"));

// Memoization for expensive operations
const MemoizedUserCard = memo(UserCard);

// Virtual scrolling for large lists
const VirtualizedFeed = ({ users }) => (
  <FixedSizeList height={600} itemCount={users.length}>
    {UserCardRenderer}
  </FixedSizeList>
);

Backend Optimizations

Database Indexing: Optimized queries with compound indexes
Connection Pooling: MongoDB connection optimization
Caching Strategy: Redis for session and frequently accessed data
Image Optimization: WebP format with lazy loading
API Rate Limiting: Prevent abuse and ensure fair usage

Performance Metrics

First Contentful Paint: < 1.5s
Time to Interactive: < 3s
Lighthouse Score: 90+ (Performance, Accessibility, Best Practices, SEO)
Bundle Size: < 500KB gzipped
API Response Time: < 200ms average

🚀 Deployment

Production Infrastructure

# Production server setup
Frontend: Served via Nginx (Static files)
Backend: Node.js with PM2 process manager
Database: MongoDB Atlas (Cloud)
SSL: Let's Encrypt certificates

Deployment Pipeline

Code Push: GitHub repository
Build: Frontend build with Vite
Deploy: AWS EC2 with PM2
Monitor: CloudWatch + Winston logs

Environment Setup

# Production deployment with PM2
npm run build  # Build frontend
pm2 start src/app.js --name "devdudes-backend"
pm2 save
pm2 startup

# SSL certificate with Let's Encrypt
certbot --nginx -d your-domain.com

🧪 Testing

Frontend Testing

// Component testing with React Testing Library
describe("UserCard Component", () => {
  test("renders user information correctly", () => {
    render(<UserCard user={mockUser} />);
    expect(screen.getByText(mockUser.firstName)).toBeInTheDocument();
  });

  test("handles action buttons clicks", () => {
    const onAction = jest.fn();
    render(<UserCard user={mockUser} onAction={onAction} />);
    fireEvent.click(screen.getByText("Interested"));
    expect(onAction).toHaveBeenCalledWith("interested");
  });
});

Backend Testing

// API endpoint testing with Jest + Supertest
describe("Auth Routes", () => {
  test("POST /signup creates new user", async () => {
    const response = await request(app)
      .post("/signup")
      .send(mockUserData)
      .expect(200);

    expect(response.body.message).toContain("successfully");
  });
});

Testing Strategy

Unit Tests: Component and function testing
Integration Tests: API endpoint testing
E2E Tests: Critical user flows
Performance Tests: Load testing with Artillery
Security Tests: OWASP vulnerability scanning

📈 Analytics & Monitoring

Application Monitoring

// Winston logger configuration
const logger = winston.createLogger({
  level: "info",
  format: winston.format.combine(
    winston.format.timestamp(),
    winston.format.json()
  ),
  transports: [
    new winston.transports.File({ filename: "error.log", level: "error" }),
    new winston.transports.File({ filename: "combined.log" }),
  ],
});

Key Metrics Tracked

User Engagement: Daily/monthly active users
Connection Success Rate: Successful matches percentage
Payment Conversion: Premium upgrade rates
Performance Metrics: API response times
Error Rates: Application errors and crashes
User Retention: Weekly/monthly retention rates

Monitoring Tools

AWS CloudWatch: Infrastructure monitoring
Google Analytics: User behavior tracking
Sentry: Error tracking and performance monitoring
New Relic: Application performance monitoring

🤝 Contributing

We welcome contributions from the developer community! Here's how you can help:

Development Workflow

# 1. Fork the repository
git clone https://github.com/yourusername/Devdudes---FullStack-web-Application.git

# 2. Create feature branch
git checkout -b feature/amazing-feature

# 3. Make changes and commit
git commit -m "Add amazing feature"

# 4. Push to branch
git push origin feature/amazing-feature

# 5. Open Pull Request

Contribution Guidelines

Code Style: ESLint + Prettier configuration
Commit Messages: Conventional commits format
Testing: Add tests for new features
Documentation: Update README for significant changes
Pull Requests: Clear description and linked issues

Areas for Contribution

🐛 Bug fixes and improvements
✨ New feature development
📚 Documentation enhancements
🔧 Performance optimizations
🌐 Internationalization (i18n)
♿ Accessibility improvements

📝 License

This project is licensed under the MIT License - see the LICENSE file for details.

MIT License

Copyright (c) 2024 Sanjai Kumar

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

👨‍💻 Author

Sanjai Kumar

Full-Stack Developer | MERN Specialist | Open Source Enthusiast

🎯 About the Developer

I'm a passionate full-stack developer with expertise in modern web technologies. DevDudes represents my vision of creating meaningful connections in the tech community through innovative web solutions.

Skills: React.js, Node.js, MongoDB, Express.js, Socket.IO, AWS, JavaScript, TypeScript, Python

🙏 Acknowledgments

Special thanks to:

MongoDB for providing an excellent NoSQL database solution
React Team for the amazing frontend library
Node.js Community for the robust backend runtime
Tailwind CSS for the utility-first CSS framework
Razorpay for seamless payment integration
AWS for reliable cloud infrastructure
Open Source Community for countless helpful libraries

📞 Support & Contact

Get Help

📧 Email: support@devdudes.tech
🐛 Bug Reports: GitHub Issues
💬 Discussions: GitHub Discussions
📖 Documentation: Wiki

Business Inquiries

💼 Partnerships: partnerships@devdudes.tech
🚀 Custom Development: dev@devdudes.tech
📈 Enterprise Solutions: enterprise@devdudes.tech

DevDudes - Connecting developers, one swipe at a time 💜

Made with ❤️ by Sanjai Kumar

⭐ Star this repository if you found it helpful!

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