My Uploader Bot - Comprehensive File Upload & Blockchain Integration System

A modern, scalable file upload and management system with blockchain integration, built with async Python and enterprise-grade security.

🚀 Features

Core Features

• Chunked File Upload: Support for large files with resume capability
• Multi-Storage Backend: Local, S3-compatible storage with automatic failover
• File Processing: Automatic image optimization, thumbnail generation, media conversion
• Content Management: Version control, metadata management, search functionality
• User Management: JWT authentication, API keys, session management

Blockchain Integration

• TON Blockchain: Wallet creation, transaction management, balance tracking
• Smart Contracts: Interaction with TON smart contracts
• NFT Support: NFT collection indexing and management
• DeFi Integration: Staking positions, token balances, yield farming

Enterprise Features

• Security: Rate limiting, CORS, CSP, input validation, file encryption
• Monitoring: Prometheus metrics, Grafana dashboards, health checks
• Caching: Redis integration with intelligent cache management
• Background Services: Async task processing, blockchain indexing
• API Documentation: OpenAPI/Swagger with interactive interface

🏗️ Architecture

Technology Stack

• Backend: Python 3.11+, Sanic (async web framework)
• Database: PostgreSQL 15+ with async SQLAlchemy 2.0
• Cache: Redis 7+ with connection pooling
• Blockchain: TON SDK for blockchain operations
• Storage: Local filesystem with S3-compatible support
• Monitoring: Prometheus, Grafana, structured logging
• Deployment: Docker Compose with multi-stage builds

System Architecture

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Load Balancer │    │     Grafana     │    │   Prometheus    │
│     (Nginx)     │    │   (Monitoring)  │    │   (Metrics)     │
└─────────────────┘    └─────────────────┘    └─────────────────┘
         │                       │                       │
         ▼                       ▼                       ▼
┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Sanic App     │◄──►│     Redis       │    │   PostgreSQL    │
│  (API Server)   │    │    (Cache)      │    │   (Database)    │
└─────────────────┘    └─────────────────┘    └─────────────────┘
         │                       │                       │
         ▼                       ▼                       ▼
┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│  Background     │    │   File Storage  │    │  TON Blockchain │
│   Services      │    │ (Local/S3/CDN)  │    │   Integration   │
└─────────────────┘    └─────────────────┘    └─────────────────┘

🔧 Installation & Setup

Prerequisites

• Python 3.11+
• PostgreSQL 15+
• Redis 7+
• Docker & Docker Compose (recommended)

Quick Start with Docker

1. Clone the repository:

git clone https://github.com/your-org/my-uploader-bot.git
cd my-uploader-bot

2. Create environment file:

cp .env.example .env
# Edit .env with your configuration

3. Start services:

docker-compose -f docker-compose.new.yml up -d

4. Initialize database:

docker-compose -f docker-compose.new.yml exec app alembic upgrade head

5. Create admin user:

docker-compose -f docker-compose.new.yml exec app python -m app.scripts.create_admin

Manual Installation

1. Install dependencies:

# Using Poetry (recommended)
poetry install

# Or using pip
pip install -r requirements_new.txt

2. Set up database:

# Create database
createdb myuploader

# Run migrations
alembic upgrade head

3. Configure Redis:

# Start Redis with custom config
redis-server config/redis.conf

4. Start application:

# Development mode
python -m app

# Production mode
gunicorn app:create_app --bind 0.0.0.0:8000 --worker-class sanic.worker.GunicornWorker

⚙️ Configuration

Environment Variables

Database Configuration:

DATABASE_URL=postgresql+asyncpg://user:password@localhost:5432/myuploader
DB_POOL_SIZE=20
DB_MAX_OVERFLOW=30

Redis Configuration:

REDIS_URL=redis://localhost:6379/0
REDIS_POOL_SIZE=20
REDIS_POOL_MAX_CONNECTIONS=100

Security Configuration:

SECRET_KEY=your-super-secret-key-here
JWT_SECRET_KEY=your-jwt-secret-key
JWT_ACCESS_TOKEN_EXPIRE_MINUTES=30
JWT_REFRESH_TOKEN_EXPIRE_DAYS=7

Storage Configuration:

STORAGE_BACKEND=local  # or s3, gcs, azure
STORAGE_PATH=/app/uploads
MAX_FILE_SIZE=104857600  # 100MB
ALLOWED_FILE_TYPES=image,video,audio,document

Blockchain Configuration:

TON_NETWORK=mainnet  # or testnet
TON_API_KEY=your-ton-api-key
TON_WALLET_VERSION=v4

Configuration Files

Redis Configuration (config/redis.conf):

• Optimized for caching workload
• Memory management and persistence settings
• Security and performance tuning

Prometheus Configuration (monitoring/prometheus.yml):

• Scraping configuration for all services
• Alert rules and metric collection
• Storage and retention settings

📊 API Documentation

Interactive Documentation

• Swagger UI: http://localhost:8000/docs
• ReDoc: http://localhost:8000/redoc
• OpenAPI JSON: http://localhost:8000/openapi.json

Authentication Methods

1. JWT Bearer Token:

curl -H "Authorization: Bearer <token>" \
  https://api.myuploader.com/api/v1/content/

2. API Key:

curl -H "X-API-Key: <api_key>" \
  https://api.myuploader.com/api/v1/content/

3. Session Cookie:

curl -b "session=<cookie>" \
  https://api.myuploader.com/api/v1/content/

Key Endpoints

Authentication:

• POST /api/v1/auth/register - User registration
• POST /api/v1/auth/login - User login
• POST /api/v1/auth/refresh - Token refresh
• DELETE /api/v1/auth/logout - User logout

Content Management:

• GET /api/v1/content/ - List content
• POST /api/v1/content/ - Create content
• GET /api/v1/content/{id} - Get content details
• PUT /api/v1/content/{id} - Update content
• DELETE /api/v1/content/{id} - Delete content

File Upload:

• POST /api/v1/storage/upload/initiate - Start upload
• POST /api/v1/storage/upload/chunk - Upload chunk
• POST /api/v1/storage/upload/complete - Complete upload
• GET /api/v1/storage/download/{id} - Download file

Blockchain:

• POST /api/v1/blockchain/wallet/create - Create wallet
• GET /api/v1/blockchain/wallet/{id} - Get wallet info
• POST /api/v1/blockchain/transaction/send - Send transaction
• GET /api/v1/blockchain/transaction/{hash} - Get transaction status

🛡️ Security

Security Features

• Authentication: Multi-factor authentication support
• Authorization: Role-based access control (RBAC)
• Input Validation: Comprehensive request validation
• Rate Limiting: Per-user and per-endpoint limits
• File Security: Virus scanning, type validation, encryption
• Network Security: CORS, CSP, HTTPS enforcement

Security Best Practices

1. Environment Variables: Store sensitive data in environment variables
2. Database Security: Use connection pooling, parameterized queries
3. File Upload Security: Validate file types, scan for malware
4. API Security: Implement rate limiting, request validation
5. Monitoring: Track security events and anomalies

Audit Logging

All security-relevant events are logged:

• Authentication attempts
• Authorization failures
• File upload/download events
• API key usage
• Blockchain transactions

📈 Monitoring & Observability

Metrics Collection

• Application Metrics: Request counts, response times, error rates
• System Metrics: CPU, memory, disk usage
• Database Metrics: Connection pool, query performance
• Cache Metrics: Hit rates, memory usage
• Blockchain Metrics: Transaction status, wallet balances

Dashboards

• Application Dashboard: Request metrics, error rates
• Infrastructure Dashboard: System resources, service health
• Database Dashboard: Query performance, connection pools
• Security Dashboard: Failed logins, rate limits

Alerting Rules

• High error rates (>5% for 5 minutes)
• High response times (>2s for 95th percentile)
• Database connection issues
• High memory usage (>90%)
• Failed blockchain transactions

🔄 Background Services

File Conversion Service

• Image Processing: Resize, optimize, generate thumbnails
• Video Processing: Transcode, extract thumbnails
• Document Processing: Extract metadata, generate previews
• Retry Logic: Automatic retry for failed conversions

Blockchain Indexer Service

• Transaction Monitoring: Track pending transactions
• Wallet Balance Updates: Sync wallet balances
• NFT Indexing: Track NFT collections and transfers
• Event Processing: Process blockchain events

🚀 Deployment

Docker Deployment

1. Production Build:

docker build -f Dockerfile.new --target production -t my-uploader-bot:latest .

2. Deploy with Compose:

docker-compose -f docker-compose.new.yml up -d

3. Health Checks:

curl http://localhost:8000/health

Kubernetes Deployment

1. Create ConfigMaps:

kubectl create configmap app-config --from-env-file=.env

2. Deploy Application:

kubectl apply -f k8s/

3. Check Status:

kubectl get pods -l app=my-uploader-bot

Production Considerations

1. Database: Use managed PostgreSQL service
2. Cache: Use managed Redis service
3. Storage: Use S3-compatible object storage
4. Load Balancer: Use cloud load balancer
5. SSL/TLS: Use Let's Encrypt or cloud SSL
6. Monitoring: Use managed monitoring service

🧪 Testing

Running Tests

# Run all tests
pytest

# Run with coverage
pytest --cov=app

# Run specific test file
pytest tests/test_auth.py

# Run integration tests
pytest tests/integration/

Test Categories

• Unit Tests: Individual function/method tests
• Integration Tests: Service integration tests
• API Tests: HTTP endpoint tests
• Database Tests: Database operation tests
• Security Tests: Security vulnerability tests

🔍 Development

Development Setup

# Install dev dependencies
poetry install --dev

# Pre-commit hooks
pre-commit install

# Run linting
black app/
isort app/
mypy app/

# Database migrations
alembic revision --autogenerate -m "Description"
alembic upgrade head

Code Quality Tools

• Black: Code formatting
• isort: Import sorting
• mypy: Type checking
• bandit: Security scanning
• pytest: Testing framework

Contributing Guidelines

1. Fork the repository
2. Create feature branch
3. Write tests for new features
4. Ensure all tests pass
5. Run security scans
6. Submit pull request

📝 Migration Guide

From v1.x to v2.x

1. Database Migration:

# Backup existing database
pg_dump myuploader > backup.sql

# Run new migrations
alembic upgrade head

2. Configuration Updates:

• Update environment variables
• Migrate Redis configuration
• Update storage configuration

3. API Changes:

• Authentication endpoints changed
• New blockchain endpoints added
• Response format updates

🐛 Troubleshooting

Common Issues

Database Connection Issues:

# Check database connectivity
psql -h localhost -U postgres -d myuploader

# Check connection pool
docker-compose logs db

Redis Connection Issues:

# Test Redis connection
redis-cli ping

# Check Redis logs
docker-compose logs redis

File Upload Issues:

# Check storage permissions
ls -la /app/uploads

# Check disk space
df -h

Blockchain Issues:

# Check TON network status
curl https://toncenter.com/api/v2/getAddressInformation

# Check wallet balance
curl -X GET /api/v1/blockchain/wallet/{wallet_id}

Performance Optimization

1. Database Optimization:

   • Add indexes for frequently queried columns
   • Optimize query patterns
   • Use connection pooling

2. Cache Optimization:

   • Implement cache warming
   • Use appropriate TTL values
   • Monitor cache hit rates

3. File Storage Optimization:

   • Use CDN for static files
   • Implement file compression
   • Use efficient storage backends

📚 Additional Resources

• API Documentation: https://docs.myuploader.com
• SDK Documentation: https://sdk.myuploader.com
• Community Forum: https://community.myuploader.com
• GitHub Repository: https://github.com/your-org/my-uploader-bot
• Docker Images: https://hub.docker.com/r/myuploader/app

📄 License

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

🤝 Support

• Email: support@myuploader.com
• Discord: https://discord.gg/myuploader
• GitHub Issues: https://github.com/your-org/my-uploader-bot/issues
• Documentation: https://docs.myuploader.com

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Built with ❤️ by the My Uploader Bot Team