E-Commerce Platform

This e-commerce platform was designed to provide a complete online shopping solution for businesses of all sizes. The project showcases advanced React patterns, state management, and integration with various third-party services.

Project Overview

The platform features a modern, responsive design that works seamlessly across all devices. Users can browse products, add items to their cart, and complete purchases through a secure checkout process.

Key Technical Highlights

**Server-side rendering** for improved SEO
**Optimistic UI updates** for better user experience
**Comprehensive error handling** throughout the application
**Real-time inventory management**

Architecture

The application follows a microservices architecture with the following components:

code

Frontend (React/Next.js)
├── User Interface
├── State Management (Redux)
└── API Integration

Backend Services
├── Authentication Service
├── Product Catalog Service
├── Order Management Service
└── Payment Processing Service

Key Features Implementation

Authentication System

javascript

// JWT-based authentication with refresh tokens
const authMiddleware = (req, res, next) => {
  const token = req.headers.authorization?.split(' ')[1];
  
  if (!token) {
    return res.status(401).json({ error: 'No token provided' });
  }
  
  try {
    const decoded = jwt.verify(token, process.env.JWT_SECRET);
    req.user = decoded;
    next();
  } catch (error) {
    return res.status(401).json({ error: 'Invalid token' });
  }
};

Payment Integration

javascript

// Stripe payment processing
const processPayment = async (paymentData) => {
  try {
    const paymentIntent = await stripe.paymentIntents.create({
      amount: paymentData.amount,
      currency: 'usd',
      payment_method: paymentData.paymentMethodId,
      confirm: true,
    });
    
    return { success: true, paymentIntent };
  } catch (error) {
    return { success: false, error: error.message };
  }
};

Database Design

The application uses PostgreSQL with the following key tables:

sql

-- Users table
CREATE TABLE users (
  id SERIAL PRIMARY KEY,
  email VARCHAR(255) UNIQUE NOT NULL,
  password_hash VARCHAR(255) NOT NULL,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Products table
CREATE TABLE products (
  id SERIAL PRIMARY KEY,
  name VARCHAR(255) NOT NULL,
  description TEXT,
  price DECIMAL(10,2) NOT NULL,
  stock_quantity INTEGER DEFAULT 0,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

Performance Optimizations

Code Splitting

javascript

// Route-based code splitting
const ProductPage = lazy(() => import('./pages/ProductPage'));
const CheckoutPage = lazy(() => import('./pages/CheckoutPage'));

function App() {
  return (
    <Suspense fallback={<LoadingSpinner />}>
      <Routes>
        <Route path="/products" element={<ProductPage />} />
        <Route path="/checkout" element={<CheckoutPage />} />
      </Routes>
    </Suspense>
  );
}

Image Optimization

**WebP format** for modern browsers with JPEG fallbacks
**Lazy loading** for product images
**Responsive images** with multiple breakpoints

Deployment

The application is deployed using Docker containers on AWS ECS with:

**Auto-scaling** based on CPU and memory usage
**Load balancing** across multiple instances
**Blue-green deployment** for zero-downtime updates

Results

The platform achieved:

**99.9% uptime** in production
**< 2 second** average page load time
**25% increase** in conversion rate compared to the previous system
**Successful handling** of Black Friday traffic spikes

E-Commerce Platform

E-Commerce Platform

Project Overview

Key Technical Highlights

Architecture

Key Features Implementation

Authentication System

Payment Integration

Database Design

Performance Optimizations

Code Splitting

Image Optimization

Deployment

Results

Project Gallery

Project Info

Technologies Used

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