# Rust Rabbit Roadmap
This document outlines the planned evolution of the rust-rabbit library following its major simplification revamp. The roadmap is organized by priority and estimated complexity.
## Version 1.0 (Current - Simplified Foundation)
### ✅ Completed
- **Simple Publisher API**: Two-method interface (`publish_to_exchange`, `publish_to_queue`)
- **Auto-declaring Consumer**: Automatic queue/exchange setup with retry support
- **Flexible Retry System**: Exponential, linear, and custom delay patterns
- **Basic Connection Management**: Simple connection with auto-reconnection
- **Clean Dependencies**: Reduced from 15+ to 7 essential dependencies
- **Comprehensive Documentation**: User guides, examples, and API docs
- **Production Examples**: Real-world usage patterns and best practices
### 🎯 Goals Achieved
- ✅ Simplicity: Easy to use with minimal configuration
- ✅ Reliability: Built-in retry mechanisms and error handling
- ✅ Flexibility: Configurable retry strategies for different use cases
- ✅ Performance: Efficient message processing with configurable concurrency
## Version 1.1 - Enhanced Observability (Q1 2024)
### 🔍 Monitoring & Debugging
- **Basic Metrics Collection**
- Message throughput (messages/second)
- Retry counts and failure rates
- Connection health status
- Queue depth monitoring
- **Structured Logging Enhancement**
- Consistent log format across all components
- Configurable log levels per component
- Request correlation IDs for tracing
- Performance timing logs
- **Health Check Endpoint**
- Simple HTTP endpoint for health monitoring
- Connection status reporting
- Queue connectivity verification
- Optional Prometheus metrics export
### 📊 Implementation Priority
1. **High**: Basic metrics collection (2-3 weeks)
2. **Medium**: Enhanced logging (1-2 weeks)
3. **Low**: Health endpoint (1 week)
## Version 1.2 - Advanced Retry Patterns (Q2 2024)
### 🔄 Retry Enhancements
- **Circuit Breaker Pattern**
- Automatic circuit opening on repeated failures
- Configurable failure thresholds
- Exponential backoff for circuit recovery
- Per-queue circuit breaker state
- **Dead Letter Queue Improvements**
- Custom DLQ routing strategies
- Message inspection and reprocessing tools
- Automatic poison message detection
- TTL-based message expiration
- **Retry Policy Presets**
- Pre-configured policies for common scenarios
- Database operation retry patterns
- API call retry strategies
- File processing retry configurations
### 🎛️ Configuration Enhancements
- **Environment-based Configuration**
- Support for `.env` files
- Environment variable override patterns
- Configuration validation and defaults
- Runtime configuration updates
## Version 1.3 - Performance Optimization (Q3 2024)
### ⚡ Performance Features
- **Message Batching**
- Configurable batch sizes for publishing
- Time-based and size-based batching
- Batch compression options
- Atomic batch processing guarantees
- **Connection Pooling**
- Optional connection pools for high-throughput scenarios
- Configurable pool size and connection reuse
- Automatic pool health management
- Load balancing across connections
- **Memory Optimization**
- Zero-copy message processing where possible
- Configurable message buffering strategies
- Memory usage monitoring and alerts
- Automatic garbage collection tuning
### 📈 Benchmarking & Testing
- **Performance Benchmarks**
- Standardized performance test suite
- Throughput and latency measurements
- Memory usage profiling
- Comparison with other Rust AMQP libraries
## Version 1.4 - Extended Messaging Patterns (Q4 2024)
### 🏗️ Additional Patterns
- **Request-Response Pattern** (Simplified)
- Correlation ID-based request matching
- Timeout handling for responses
- Multiple response handling
- Load balancing for request handlers
- **Priority Queues**
- Message priority levels (1-255)
- Priority-based processing order
- Queue priority configuration
- Priority overflow handling
- **Message Deduplication**
- Content-based deduplication
- Time window deduplication
- Custom deduplication strategies
- Redis-backed deduplication store
### � Integration Support
- **Framework Integrations**
- Axum/Warp HTTP server integration
- Tokio task integration helpers
- Serde serialization optimizations
- Custom deserializer support
## Version 2.0 - Cloud-Native Features (2025)
### ☁️ Cloud Platform Support
- **Container Orchestration**
- Kubernetes deployment examples
- Docker Compose configurations
- Health check integrations
- Graceful shutdown handling
- **Service Discovery**
- Consul integration
- etcd support
- Kubernetes service discovery
- DNS-based discovery
- **Security Enhancements**
- TLS/SSL connection encryption
- SASL authentication mechanisms
- Certificate-based authentication
- Connection security auditing
### 🌐 Multi-Protocol Support
- **Protocol Extensions**
- MQTT bridge support
- HTTP webhook publishing
- gRPC service integration
- WebSocket real-time streaming
## Version 2.1+ - Advanced Enterprise Features
### 🏢 Enterprise Considerations
- **Message Transformation**
- Built-in message format converters
- Schema validation and evolution
- Content filtering and routing
- Message enrichment pipelines
- **Distributed Tracing**
- OpenTelemetry integration
- Jaeger/Zipkin support
- Correlation ID propagation
- Performance trace analysis
- **Administrative Tools**
- CLI management tools
- Queue inspection utilities
- Message replay capabilities
- Configuration management tools
## Principles for Future Development
### 🎯 Core Values
1. **Simplicity First**: Every feature must have a simple, obvious use case
2. **Backward Compatibility**: Major versions will maintain API stability
3. **Performance Conscious**: Features should not significantly impact base performance
4. **Documentation Driven**: Every feature needs comprehensive documentation and examples
5. **Testing Required**: All features must have unit tests and integration examples
### 🚫 Explicitly Out of Scope
- **Complex Event Sourcing**: Enterprise-grade event sourcing remains outside core library
- **Multi-Broker Support**: Focus remains on RabbitMQ exclusively
- **GUI Tools**: Command-line and programmatic interfaces only
- **Custom Protocol Implementation**: Stick to standard AMQP 0.9.1
## Community & Contribution
### 🤝 Contribution Guidelines
- **RFC Process**: Major features require RFC discussion
- **Feature Flags**: New features should be behind feature flags initially
- **Benchmark Requirements**: Performance-impacting changes need benchmarks
- **Documentation First**: Features start with documentation, then implementation
### 📢 Communication Channels
- **GitHub Issues**: Bug reports and feature requests
- **GitHub Discussions**: Architecture discussions and questions
- **Documentation Examples**: Real-world usage examples and patterns
## Migration Path
### 🔄 Upgrading from Complex Version
For users upgrading from the pre-1.0 complex version:
1. **Assessment Phase**: Identify which enterprise features you actually use
2. **Simplification**: Migrate to basic Publisher/Consumer patterns
3. **Retry Migration**: Convert complex retry logic to new retry configurations
4. **Testing**: Verify behavior with simplified APIs
5. **Performance Validation**: Ensure throughput meets requirements
### 📋 Migration Tools (Planned for v1.1)
- **Configuration Converter**: Tool to convert old configurations to new format
- **Feature Usage Analyzer**: Identify which enterprise features are actually used
- **Migration Guide**: Step-by-step migration instructions with examples
- **Compatibility Shims**: Temporary compatibility layer for gradual migration
## Release Schedule
### 🗓️ Estimated Timeline
- **v1.1**: 3 months (Observability)
- **v1.2**: 6 months (Advanced Retry)
- **v1.3**: 9 months (Performance)
- **v1.4**: 12 months (Extended Patterns)
- **v2.0**: 18 months (Cloud-Native)
### 🔄 Release Process
- **Monthly Patch Releases**: Bug fixes and minor improvements
- **Quarterly Minor Releases**: New features and enhancements
- **Yearly Major Releases**: Breaking changes and major new capabilities
---
*This roadmap is a living document and will be updated based on community feedback, usage patterns, and emerging requirements. Priority and timeline adjustments will be made based on real-world usage and feedback.*
**Last Updated**: December 2024
**Next Review**: March 2025