🏃‍♂️ Fitchain

Decentralized Fitness Tracking Platform on Stellar Blockchain

A revolutionary blockchain-powered fitness tracking application that combines real-time GPS tracking with Stellar blockchain technology to create a decentralized fitness ecosystem with contests, leaderboards, and crypto rewards.

🌐 Live Demo: https://fit-chain-nine.vercel.app/

🌟 Features

🎯 Core Functionality

Real-Time GPS Tracking - Professional-grade GPS accuracy with live path visualization
Stellar Blockchain Integration - Store achievements permanently on Stellar blockchain
Freighter Wallet Support - Secure wallet connection for Web3 functionality
Interactive Maps - Leaflet-powered maps with real-time tracking visualization
Fitness Contests - Join competitions and compete for crypto prizes
Global Leaderboards - Track your performance against other runners
Payment System - Automated prize distribution via Stellar network

🏆 Contest System

Create and join fitness contests
Real-time leaderboard updates
Automated winner selection
Prize pool management
Contest history and statistics

💼 Wallet & Payments

Freighter wallet integration
Secure Stellar transactions
Prize distribution tracking
Payment history
Multi-currency support (XLM, USDC)

🎨 User Experience

Stunning Earth Background - CSS-animated Earth with rotating sphere and starfield
Responsive Design - Works perfectly on desktop, tablet, and mobile devices
Glassmorphism UI - Modern glass-effect design with smooth animations
Professional Landing Page - Complete with features showcase and statistics
Smooth Page Transitions - Framer Motion powered animations

🚀 Quick Start

Prerequisites

Node.js (v16 or higher)
npm or yarn
Freighter Wallet browser extension (Install here)
SQLite3 (for backend database)

Installation

1. Clone the Repository

git clone https://github.com/yourusername/stellar-strider.git
cd stellar-strider

2. Backend Setup

cd backend

# Install dependencies
npm install

# Setup environment variables
cp .env.example .env
# Edit .env with your configuration

# Initialize database
npm run init-db

# Start backend server
npm start

The backend API will run on http://localhost:3001

3. Frontend Setup

cd frontend

# Install dependencies
npm install

# Setup environment variables
cp .env.example .env
# Edit .env with your configuration

# Start development server
npm run dev

The frontend will run on http://localhost:5173

Environment Configuration

Backend `.env`

PORT=3001
NODE_ENV=development
FRONTEND_URL=http://localhost:5173

# Database
DATABASE_PATH=./database/stellar-strider.db

# Security
RATE_LIMIT_WINDOW_MS=900000
RATE_LIMIT_MAX_REQUESTS=100

# Stellar Network
STELLAR_NETWORK=testnet
STELLAR_HORIZON_URL=https://horizon-testnet.stellar.org

Frontend `.env`

# Stellar Configuration
VITE_STELLAR_NETWORK=testnet
VITE_STELLAR_HORIZON_URL=https://horizon-testnet.stellar.org

# Backend API
VITE_API_URL=http://localhost:3001

# Optional: Smart Contract Address
VITE_PUBLIC_CONTRACT_ADDRESS=your-contract-address-here

📱 Usage

1. Connect Your Wallet

Install Freighter wallet extension
Create or import your Stellar wallet
Click "Connect Wallet" in the app
Approve the connection

2. Start Tracking

Click "Start Run" to begin GPS tracking
Move around to record your path
Watch real-time stats update
Click "Stop Run" when finished

3. Join Contests

Browse available contests
Join contests that interest you
Complete your runs during contest period
Check leaderboards for rankings

4. Earn Rewards

Win contests to earn crypto prizes
Prizes automatically distributed to your wallet
Track your earnings in payment history

🏗️ Project Structure

stellar-strider/
├── backend/                    # Express.js API Server
│   ├── config/                # Database and app configuration
│   ├── database/              # SQLite database files
│   ├── models/                # Database models
│   ├── routes/                # API route handlers
│   │   ├── contests.js       # Contest management
│   │   ├── leaderboard.js    # Leaderboard endpoints
│   │   └── payments.js       # Payment processing
│   ├── scripts/              # Utility scripts
│   ├── server.js             # Main server file
│   └── package.json
│
├── frontend/                  # React Application
│   ├── public/               # Static assets
│   │   └── images/          # Image files
│   ├── src/
│   │   ├── components/      # React components
│   │   │   ├── LandingPage.jsx
│   │   │   ├── SimpleMap.jsx
│   │   │   ├── ContestPage.jsx
│   │   │   ├── Leaderboard.jsx
│   │   │   ├── ContestLeaderboard.jsx
│   │   │   ├── WalletIntegration.jsx
│   │   │   └── ...
│   │   ├── utils/           # Utility functions
│   │   │   └── stellarWallet.js
│   │   ├── App.jsx          # Main application
│   │   ├── App.css          # Global styles
│   │   └── main.jsx         # Entry point
│   ├── package.json
│   └── vite.config.js
│
├── contract/                  # Soroban Smart Contract (Rust)
│   ├── src/
│   │   └── lib.rs           # Contract logic
│   ├── Cargo.toml
│   └── target/              # Compiled WASM
│
├── DEPLOYMENT.md             # Deployment guide
├── LICENSE                   # MIT License
└── README.md                # This file

🛠️ Technology Stack

Frontend

React 19 - UI framework with latest features
Vite - Fast build tool and dev server
Framer Motion - Smooth animations and transitions
Leaflet - Interactive mapping library
React Leaflet - React bindings for Leaflet
Stellar SDK - Stellar blockchain integration
Freighter API - Wallet connection

Backend

Node.js - JavaScript runtime
Express.js - Web framework
SQLite3 - Embedded database
Helmet - Security middleware
CORS - Cross-origin resource sharing
Rate Limiting - API protection

Blockchain

Stellar Network - Blockchain platform
Soroban - Smart contract platform (Rust)
Freighter - Stellar wallet

📊 API Endpoints

Leaderboard

GET /api/leaderboard/global - Global leaderboard
GET /api/leaderboard/contest/:contestId - Contest leaderboard
GET /api/leaderboard/user/:walletAddress/rank - User rank
GET /api/leaderboard/top-performers - Top performers
GET /api/leaderboard/top-earners - Top earners

Contests

GET /api/contests - All contests
GET /api/contests/:id - Contest by ID
GET /api/contests/:id/winners - Contest winners
GET /api/contests/status/active - Active contests
GET /api/contests/status/upcoming - Upcoming contests
GET /api/contests/status/completed - Completed contests

Payments

GET /api/payments - All payments
GET /api/payments/:id - Payment by ID
GET /api/payments/wallet/:walletAddress - User payments
GET /api/payments/recent/all - Recent payments
GET /api/payments/prizes/all - All prizes
GET /api/payments/prizes/user/:walletAddress - User prizes

🗺️ GPS Tracking Features

Real-Time Tracking

High-accuracy GPS positioning
Live path visualization on map
Movement detection algorithms
Speed and pace calculation
Distance tracking with Haversine formula

Loop Validation

Validates start and end points (50m tolerance)
Minimum 3 GPS points required
Clear feedback messages
Prevents invalid submissions

Statistics

Real-time timer
Distance traveled
Current speed
Average pace
GPS accuracy indicator
Movement status

🔐 Security Features

Helmet.js - HTTP security headers
Rate Limiting - API request throttling
CORS Protection - Controlled cross-origin access
Input Validation - Sanitized user inputs
Secure Wallet Connection - Freighter integration
Environment Variables - Sensitive data protection

🎮 Contest System

Contest Types

Distance challenges
Time trials
Speed competitions
Custom fitness goals

Prize Distribution

Automated winner selection
Instant prize distribution
Multi-place rewards (1st, 2nd, 3rd)
Transparent payment tracking

Leaderboard Features

Real-time rankings
Performance metrics
Historical data
User statistics

🚢 Deployment

See DEPLOYMENT.md for detailed deployment instructions including:

Production environment setup
Database configuration
Stellar network deployment
Smart contract deployment
Frontend build and hosting
Backend server deployment

🧪 Development

Available Scripts

Backend

npm start          # Start production server
npm run dev        # Start development server with nodemon
npm run init-db    # Initialize database

Frontend

npm run dev        # Start development server
npm run build      # Build for production
npm run preview    # Preview production build
npm run lint       # Run ESLint

Testing GPS Tracking

Simulate GPS in Chrome DevTools

Open DevTools (F12)
Click Menu (⋮) → More Tools → Sensors
Under Location, select "Custom location"
Enter coordinates (e.g., Lat: 28.6139, Lon: 77.2090)
Start tracking in the app
Change coordinates to simulate movement
Return to start point to complete loop

🤝 Contributing

We welcome contributions! 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

Development Guidelines

Follow existing code style
Write clear commit messages
Add tests for new features
Update documentation as needed
Ensure all tests pass

📄 License

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

🔮 Roadmap

Phase 1 (Current)

✅ GPS tracking system
✅ Stellar wallet integration
✅ Contest system
✅ Leaderboards
✅ Payment processing

Phase 2 (Upcoming)

Mobile app (React Native)
Social features and friend challenges
Advanced analytics dashboard
NFT rewards for achievements
Wearable device integration

Phase 3 (Future)

📞 Support

Documentation: Check this README and DEPLOYMENT.md
Issues: GitHub Issues
Email: support@stellarstrider.app
Discord: Join our community server

🙏 Acknowledgments

Stellar Development Foundation - Blockchain infrastructure
OpenStreetMap - Mapping data
Leaflet - Mapping library
React Team - UI framework
Freighter Team - Wallet integration
All contributors and testers

📈 Statistics

1,247 Total Runs Recorded
89 Active Users
15.4K KM Tracked
342 Contests Completed

🌍 Transform Your Fitness Journey with Blockchain 🚀

Name		Name	Last commit message	Last commit date
Latest commit History 12 Commits
backend		backend
contract		contract
database		database
frontend		frontend
.gitignore		.gitignore
DEPLOYMENT.md		DEPLOYMENT.md
LICENSE		LICENSE
Procfile		Procfile
README.md		README.md
database-viewer.html		database-viewer.html
package.json		package.json
render.yaml		render.yaml
setup-backend.bat		setup-backend.bat
setup-backend.sh		setup-backend.sh
test-freighter.html		test-freighter.html

Folders and files

Latest commit

History

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🏃‍♂️ Fitchain

🌟 Features

🎯 Core Functionality

🏆 Contest System

💼 Wallet & Payments

🎨 User Experience

🚀 Quick Start

Prerequisites

Installation

1. Clone the Repository

2. Backend Setup

3. Frontend Setup

Environment Configuration

Backend .env

Frontend .env

📱 Usage

1. Connect Your Wallet

2. Start Tracking

3. Join Contests

4. Earn Rewards

🏗️ Project Structure

🛠️ Technology Stack

Frontend

Backend

Blockchain

📊 API Endpoints

Leaderboard

Contests

Payments

🗺️ GPS Tracking Features

Real-Time Tracking

Loop Validation

Statistics

🔐 Security Features

🎮 Contest System

Contest Types

Prize Distribution

Leaderboard Features

🚢 Deployment

🧪 Development

Available Scripts

Backend

Frontend

Testing GPS Tracking

Simulate GPS in Chrome DevTools

🤝 Contributing

Development Guidelines

📄 License

🔮 Roadmap

Phase 1 (Current)

Phase 2 (Upcoming)

Phase 3 (Future)

📞 Support

🙏 Acknowledgments

📈 Statistics

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Backend `.env`

Frontend `.env`