🛒 QuickCart

Modern Grocery Delivery Platform with Real-Time Analytics

Features • Demo • Installation • Documentation • Security • Contributing

📖 Overview

QuickCart is a production-ready, full-stack e-commerce platform designed for grocery delivery services. Built with modern technologies and best practices, it offers a seamless shopping experience for customers and powerful management tools for administrators.

🎯 Why QuickCart?

🚀 Production Ready - Battle-tested security with 9.5/10 security rating
📊 Real-Time Analytics - Live dashboard with sales metrics and insights
🔒 Enterprise Security - JWT auth, rate limiting, CSRF protection, input validation
📱 Fully Responsive - Optimized for mobile, tablet, and desktop
🎨 Modern UI/UX - Clean, intuitive interface built with React Bootstrap
⚡ High Performance - Optimized bundle size and fast load times
📄 PDF Export - Generate reports, orders, and catalogs
🔔 Real-Time Updates - Live order tracking and status notifications

✨ Features

🛍️ Customer Features

User Authentication - Phone-based login with OTP verification via SMS
Product Browsing - Browse products by categories with search functionality
Shopping Cart - Add, remove, and manage items with quantity selection
Wishlist - Save favorite products for later purchase
Address Management - Multiple delivery addresses support
Order Tracking - Real-time order status updates and history
Responsive Design - Optimized for mobile, tablet, and desktop

👨‍💼 Admin Features

Real-time Dashboard - Live sales metrics, revenue analytics, and order statistics
Product Management - Add, edit, delete products with multiple image support
Category Management - Organize products with category-wise analytics
Order Management - View, filter, and update order statuses
User Management - Monitor customer accounts and activity
Banner & Offers Management - Manage promotional content and discount offers
PDF Export - Generate and download analytics reports, order reports, and product catalogs
Security Features - JWT authentication, rate limiting, CSRF protection

🚀 Technology Stack

Frontend

Framework: React 18 with Hooks
Routing: React Router DOM v6
UI Library: React Bootstrap 5
Icons: React Icons, Font Awesome
PDF Generation: jsPDF, jsPDF-AutoTable
Charts: Recharts for analytics visualization
State Management: Context API
Storage: Local Storage + HTTP Cookies

Backend

Framework: Flask 3.0 (Python)
Database: PostgreSQL 16
Authentication: JWT tokens with bcrypt
SMS Service: Twilio / Fast2SMS integration
Security: Rate limiting, input validation, SQL injection prevention
API: RESTful API with JSON responses

Security Features

JWT-based authentication
Admin login rate limiting (5 attempts/min)
CSRF token protection
SQL injection prevention (parameterized queries)
XSS protection (input sanitization)
Security headers (X-Frame-Options, CSP, HSTS, etc.)
Environment-based configuration

📁 Project Structure

quickcart/
├── backend/
│   ├── app.py                 # Flask application entry point
│   ├── config/
│   │   └── config.py          # Database and app configuration
│   ├── routes/
│   │   ├── auth_routes.py     # Authentication endpoints
│   │   ├── product_routes.py  # Product CRUD operations
│   │   ├── order_routes.py    # Order management
│   │   ├── category_routes.py # Category operations
│   │   ├── banner_routes.py   # Banner management
│   │   ├── offer_routes.py    # Offers management
│   │   └── analytics_routes.py # Dashboard analytics
│   ├── utils/
│   │   ├── database.py        # Database connection handler
│   │   ├── auth_middleware.py # JWT verification & admin auth
│   │   ├── input_validator.py # Input validation & sanitization
│   │   ├── rate_limiter.py    # Rate limiting implementation
│   │   └── csrf_protection.py # CSRF token handling
│   └── services/
│       └── sms_service.py     # SMS OTP service
├── database/
│   ├── schema.sql             # Database schema
│   ├── setup.py               # Database initialization
│   └── ensure_admin.py        # Create admin user
├── src/
│   ├── components/
│   │   ├── admin/             # Admin dashboard components
│   │   │   ├── dashboard/     # Real-time analytics dashboard
│   │   │   ├── ProductManagement.js
│   │   │   ├── OrderManagement.js
│   │   │   ├── CategoryManagement.js
│   │   │   └── BannerManagement.js
│   │   ├── product/           # Product display components
│   │   ├── cart/              # Shopping cart
│   │   ├── checkout/          # Checkout flow
│   │   └── common/            # Reusable components
│   ├── pages/
│   │   ├── Home.js
│   │   ├── Admin.js
│   │   ├── Cart.js
│   │   └── Checkout.js
│   ├── context/
│   │   ├── AuthContext.js     # Authentication state
│   │   ├── CartContext.js     # Shopping cart state
│   │   └── SessionContext.js  # Session management
│   ├── services/
│   │   ├── authService.js     # Auth API calls
│   │   ├── productService.js  # Product API calls
│   │   └── orderService.js    # Order API calls
│   └── utils/
│       ├── constants.js
│       └── helpers.js
├── docs/                      # 📚 All documentation
│   ├── README.md              # Documentation index
│   ├── PRODUCTION_SECURITY_FIXES.md  # ⭐ Production deployment guide
│   ├── QUICK_SECURITY_FIXES_SUMMARY.md
│   ├── SECURITY_AND_TEST_ANALYSIS.md
│   ├── TEST_EXECUTION_GUIDE.md
│   ├── PDF_EXPORT_FEATURES.md
│   └── DASHBOARD_REDESIGN_GUIDE.md
├── public/
├── .env.example               # Environment variables template
└── README.md                  # This file
│   │   ├── auth/           # Login/authentication
│   │   ├── cart/           # Shopping cart
│   │   ├── product/        # Product display
│   │   └── common/         # Shared components
│   ├── pages/              # Main page components
│   ├── services/           # Data services
│   ├── context/            # React context providers
│   ├── hooks/              # Custom React hooks
│   ├── utils/              # Utility functions
│   └── assets/             # Images, styles, icons
└── README.md

🛠️ Installation & Setup

Prerequisites

Node.js (v14 or higher)
npm or yarn

Setup Instructions

Clone the repository

git clone https://github.com/mujju-212/quickcart.git
cd quickcart

Install dependencies
```
npm install
```

Set up environment variables

# Copy the environment template
cp .env.example .env

# Edit .env with your API keys (optional for basic functionality)

Start the development server
```
npm start
```
Open your browser
```
http://localhost:3000
```

🎯 Usage

Customer Flow

Browse Products - Explore categories and view product details
Add to Cart - Select items and quantities
Login - Sign in with phone number (OTP simulation)
Checkout - Enter delivery address and place order
Track Order - Monitor order status in real-time

Admin Panel Access

Navigate to /admin to access the admin dashboard
Manage products, orders, and view analytics
Add new categories and promotional banners

🎥 Live Demo

📹 Video Walkthrough Coming Soon!
A comprehensive 2-3 minute video demonstration will showcase:

Customer journey (browsing, cart, checkout)

Admin panel features (dashboard, product management)

Mobile responsive design

🏗️ System Architecture

Complete Technical Architecture

QuickCart's layered architecture ensures scalability, security, and maintainability:

Frontend Layer: React 18 with Context API, React Router v6, and Bootstrap 5
Security Middleware: JWT authentication, rate limiting, CSRF protection, input validation
Backend Layer: Flask 3.0 with RESTful API design and business logic
Database Layer: PostgreSQL 16 with optimized schema and 19 performance indexes
External Services: SMS (Twilio/Fast2SMS), Email (MailerSend), and CDN integration

🗄️ Database Schema

Robust database design with 13 tables:

Core Tables: users, products, categories, orders, order_items
Feature Tables: cart_items, wishlist_items, user_addresses, product_reviews
Marketing: banners, offers
Security: otp_rate_limits, api_rate_limits
Relationships: Properly normalized with foreign keys and constraints
Performance: 19 indexes for optimized query execution

🔒 Security Architecture

Enterprise-grade security with 5 protection layers:

Authentication & Authorization: JWT tokens, RBAC (Admin/Customer)
Rate Limiting: Database-backed limits (20 OTP/day, 5 admin login/min)
Input Validation: SQL injection prevention, XSS protection
CSRF Protection: Token-based validation with HMAC-SHA256
Security Headers: 8 HTTP security headers (CSP, HSTS, X-Frame-Options)

Security Rating: 9.5/10 ⭐ | Production Ready: ✅

⚡ Platform Features

9 Core Features:

🛒 Smart Cart - Add, update, remove, save for later
🔒 Secure Auth - JWT + OTP phone/email authentication
📊 Analytics - Real-time dashboard with live metrics
📱 Responsive - Optimized for mobile, tablet, desktop
📄 PDF Reports - Export orders, analytics, catalogs
⭐ Reviews - Product ratings and customer feedback
🎁 Offers - Coupons, discounts, promotional campaigns
🚚 Order Track - Real-time status updates
⚡ Enterprise Security - 9.5/10 security rating

🧰 Technology Stack Layers

From Database to Frontend:

Layer 1 (Database): PostgreSQL 16, psycopg2, connection pooling
Layer 2 (Backend): Flask 3.0, Python 3.9+, bcrypt, PyJWT, mailersend, twilio
Layer 3 (Security): JWT, rate limiting, CSRF protection, input validation
Layer 4 (Frontend): React 18.2, React Router v6, Bootstrap 5, Recharts, jsPDF
Layer 5 (Services): SMS (Twilio/Fast2SMS), Email (MailerSend), CDN

🔐 Authentication Flow

Secure OTP-based authentication process:

User enters phone/email → Rate limit check
Generate 6-digit OTP → Store in memory (5-min expiry)
Send via SMS/Email → User verification
Check user existence → Create new or fetch existing
Generate JWT token (7-day expiry) → Store in cookies + localStorage
Success: Redirect to dashboard

📦 Order Processing Workflow

Complete order lifecycle:

Customer Journey: Browse → Cart → Checkout → Address → Payment → Confirmation
Order Statuses: Pending → Confirmed → Preparing → Out for Delivery → Delivered
Admin Actions: View orders → Update status → Manage inventory → Generate reports
Parallel Processes: Inventory check, payment processing, notifications, analytics
Timeline: Order placed → Confirmation (5min) → Preparing (30min) → Delivery (2-4hrs)

🚀 Available Scripts

In the project directory, you can run:

Development Commands

npm start - Runs the app in development mode
npm test - Launches the test runner
npm run build - Builds the app for production
npm run serve - Serves the production build locally

Code Quality Commands

npm run lint - Runs ESLint for code linting
npm run lint:fix - Fixes ESLint errors automatically
npm run format - Formats code with Prettier
npm run analyze - Analyzes the bundle size

🔧 Configuration

Environment Variables

Backend (.env in backend folder)

# Database Configuration
DATABASE_URL=postgresql://user:password@localhost:5432/quickcart
DB_HOST=localhost
DB_PORT=5432
DB_NAME=quickcart
DB_USER=your_username
DB_PASSWORD=your_password

# Security (REQUIRED for production)
JWT_SECRET_KEY=<generate-strong-secret-key>
FLASK_ENV=production  # or 'development'

# SMS Service (Optional - for OTP)
TWILIO_ACCOUNT_SID=your_twilio_sid
TWILIO_AUTH_TOKEN=your_twilio_token
TWILIO_PHONE_NUMBER=your_twilio_number
FAST2SMS_API_KEY=your_fast2sms_key

Frontend (.env in root folder)

# API Configuration
REACT_APP_API_URL=http://localhost:5001/api
NODE_ENV=production  # or 'development'

# Optional Features
REACT_APP_USE_MOCK_DATA=false

Generate JWT Secret Key

# For production, generate a strong secret key:
python -c "import secrets; print(secrets.token_hex(32))"

📚 Documentation

Comprehensive documentation is available in the /docs folder:

Production Deployment Guide ⭐ - Complete guide for production setup
Security Analysis - Security audit and test results
Testing Guide - 60+ test cases and procedures
PDF Export Features - PDF generation documentation
Dashboard Guide - Dashboard architecture

Quick Links

Security Rating: 9.5/10 ✅
Production Ready: Yes ✅
Architecture Diagrams: 8 technical images 📊

🔒 Security Features

QuickCart implements enterprise-grade security:

Authentication
- JWT-based token authentication
- 7-day token expiration
- Secure password hashing (ready for production)
Rate Limiting
- OTP requests: 20 per day per phone
- Admin login: 5 attempts per minute per IP
- Prevents brute force attacks
Input Validation
- SQL injection prevention (parameterized queries)
- XSS protection (input sanitization with bleach)
- Price/quantity validation
- Phone number validation
Security Headers
- X-Content-Type-Options: nosniff
- X-Frame-Options: DENY
- X-XSS-Protection: 1; mode=block
- Strict-Transport-Security (HSTS in production)
- Content-Security-Policy
- Referrer-Policy
CSRF Protection
- Token-based CSRF validation
- 1-hour token lifetime
- HMAC-SHA256 signature

🚀 Production Deployment

Prerequisites

PostgreSQL 16+ installed
Python 3.9+ installed
Node.js 18+ installed
Strong JWT secret key generated

Step-by-Step Guide

1. Database Setup

# Navigate to database folder
cd database

# Run setup script
python setup.py

# Ensure admin user exists
python ensure_admin.py

2. Backend Setup

# Navigate to backend
cd backend

# Install dependencies
pip install -r requirements.txt

# Set environment variables
export JWT_SECRET_KEY="<your-generated-secret>"
export FLASK_ENV="production"
export DATABASE_URL="postgresql://user:password@localhost:5432/quickcart"

# Start backend server
python app.py

3. Frontend Setup

# Install dependencies
npm install

# Build for production
NODE_ENV=production npm run build

# Serve with a web server (nginx/apache)
# Or use serve: npx serve -s build

4. Configure Web Server (Nginx example)

server {
    listen 80;
    server_name yourdomain.com;

    # Frontend
    location / {
        root /path/to/quickcart/build;
        try_files $uri /index.html;
    }

    # Backend API
    location /api {
        proxy_pass http://localhost:5001;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

Production Checklist

📖 Full deployment guide: See docs/PRODUCTION_SECURITY_FIXES.md

📦 Deployment

Netlify/Vercel Deployment

Build the project:
```
npm run build
```
Deploy the build folder to your hosting service
Set environment variables in your hosting dashboard

GitHub Pages Deployment

Install gh-pages:
```
npm install --save-dev gh-pages
```

Add to package.json:

"homepage": "https://mujju-212.github.io/quickcart"

Deploy:
```
npm run build
npm run deploy
```

🔍 Key Features Explained

Local Storage Architecture

All data is stored in browser's local storage
Simulates real backend behavior
Perfect for demo and portfolio purposes

Responsive Design

Mobile-first approach
Bootstrap grid system
Custom CSS for enhanced UX

State Management

React Context for global state
Custom hooks for data management
Efficient re-rendering optimization

🤝 Contributing

Contributions are welcome! Please follow these steps:

Fork the repository
Create a feature branch: git checkout -b feature/amazing-feature
Commit your changes: git commit -m 'Add amazing feature'
Push to the branch: git push origin feature/amazing-feature
Open a Pull Request

📄 License

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

👨‍💻 Author

Mujju-212

GitHub: @mujju-212
Repository: quickcart

🙏 Acknowledgments

Built with Create React App
UI components from React Bootstrap
Icons from React Icons and Font Awesome
Inspired by modern e-commerce platforms

⭐ Star this repository if you found it helpful!

Made with ❤️ by Mujju-212

Name		Name	Last commit message	Last commit date
Latest commit History 67 Commits
backend		backend
database		database
docs		docs
public		public
quickcart-admin-mobile		quickcart-admin-mobile
quickcart-mobile		quickcart-mobile
src		src
.env.development		.env.development
.env.example		.env.example
.env.production		.env.production
.env.vercel		.env.vercel
.gitignore		.gitignore
Procfile		Procfile
README.md		README.md
package-lock.json		package-lock.json
package.json		package.json
render.yaml		render.yaml
requirements.txt		requirements.txt
setup-db.bat		setup-db.bat
setup-db.sh		setup-db.sh
setup.bat		setup.bat
setup.sh		setup.sh
setup_project.py		setup_project.py
vercel.json		vercel.json

Folders and files

Latest commit

History

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🛒 QuickCart

Modern Grocery Delivery Platform with Real-Time Analytics

📖 Overview

🎯 Why QuickCart?

✨ Features

🛍️ Customer Features

👨‍💼 Admin Features

🚀 Technology Stack

Frontend

Backend

Security Features

📁 Project Structure

🛠️ Installation & Setup

Prerequisites

Setup Instructions

🎯 Usage

Customer Flow

Admin Panel Access

🎥 Live Demo

🏗️ System Architecture

Complete Technical Architecture

🗄️ Database Schema

🔒 Security Architecture

⚡ Platform Features

🧰 Technology Stack Layers

🔐 Authentication Flow

📦 Order Processing Workflow

🚀 Available Scripts

Development Commands

Code Quality Commands

🔧 Configuration

Environment Variables

Backend (.env in backend folder)

Frontend (.env in root folder)

Generate JWT Secret Key

📚 Documentation

Quick Links

🔒 Security Features

🚀 Production Deployment

Prerequisites

Step-by-Step Guide

1. Database Setup

2. Backend Setup

3. Frontend Setup

4. Configure Web Server (Nginx example)

Production Checklist

📦 Deployment

Netlify/Vercel Deployment

GitHub Pages Deployment

🔍 Key Features Explained

Local Storage Architecture

Responsive Design

State Management

🤝 Contributing

📄 License

👨‍💻 Author

🙏 Acknowledgments

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