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PianoRhythm Server Technical Documentation

Welcome to the comprehensive technical documentation for PianoRhythm Server. This documentation covers all aspects of the server architecture, APIs, deployment, and development.

📖 Documentation Structure​

🏗️ Architecture​

Understanding the system design and core components:

🔌 API Reference​

Complete API documentation for integration:

🚀 Deployment​

Production deployment and operations:

💻 Development​

Development guides and best practices:

🎯 Quick Navigation​

For New Developers​

  1. Start with Architecture Overview to understand the system
  2. Follow Development Setup to get your environment ready
  3. Review API Overview to understand the interfaces
  4. Check Testing Guide to run and write tests

For DevOps Engineers​

  1. Review Docker Deployment for containerization
  2. Study Kubernetes Deployment for orchestration
  3. Configure Environment Variables for your setup

For API Consumers​

  1. Start with API Overview for authentication and general concepts
  2. Reference REST Endpoints for HTTP APIs
  3. Study WebSocket API for real-time features

For System Architects​

  1. Deep dive into Architecture Overview
  2. Understand Actor System design patterns
  3. Review State Management strategies

🔍 Key Concepts​

Real-time Architecture​

The server is built around real-time communication using:

  • WebSocket connections for low-latency client communication
  • Actor-based messaging for scalable concurrent processing
  • Redis pub/sub for distributed messaging across server instances

Scalability Design​

  • Horizontal scaling through stateless server instances
  • Redis clustering for distributed state management
  • Kubernetes orchestration for container management
  • Load balancing for traffic distribution

Security Model​

  • JWT authentication with Ed25519 signatures
  • Role-based authorization (Guest, Member, Pro, Moderator, Admin)
  • Rate limiting to prevent abuse
  • Input validation and sanitization

📊 Monitoring and Observability​

The server includes comprehensive monitoring:

  • Prometheus metrics for performance monitoring
  • Structured logging with JSON format
  • Sentry integration for error tracking
  • Health check endpoints for load balancers

🛠️ Development Tools​

Key tools and technologies used:

  • Rust - Systems programming language
  • Actix Web - High-performance web framework
  • Redis - In-memory data structure store
  • MongoDB - Document database
  • Protobuf - Binary serialization
  • Docker - Containerization
  • Kubernetes - Container orchestration

📝 Documentation Standards​

This documentation follows these principles:

  • Comprehensive - Covers all aspects of the system
  • Up-to-date - Maintained alongside code changes
  • Practical - Includes working examples and code snippets
  • Accessible - Written for different skill levels and roles

🔄 Keeping Documentation Updated​

When making changes to the server:

  1. Update relevant documentation files
  2. Add new sections for new features
  3. Update API documentation for interface changes
  4. Review and update deployment guides as needed

📞 Getting Help​

If you can't find what you're looking for:

  1. Check the specific section most relevant to your needs
  2. Search through the documentation using your browser's find function
  3. Create an issue on GitHub for documentation improvements
  4. Ask questions in the development Discord channel

This documentation is maintained by the PianoRhythm development team and updated regularly to reflect the current state of the system.