Event-Driven Billing Architecture #396
Description
Event-Driven Billing Architecture
Request Type: New Feature
👤 User Story
As a SaaS platform architect, I want an event-driven billing architecture so that billing operations are scalable, maintainable, and can integrate seamlessly with other platform components.
Route URL
/api/billing/events
🚨 Problem Statement, Use Case, or Opportunity
Currently, there is no event-driven architecture for billing operations, which creates tight coupling between systems and limits scalability. This makes it difficult to integrate billing with other platform components and handle complex billing workflows. The system needs an event-driven architecture that provides loose coupling, scalability, and flexibility.
💡 Proposed Solution
Implement an event-driven billing architecture with:
- Billing event sourcing and event store implementation
- Event-driven billing workflow orchestration
- Asynchronous billing event processing and handlers
- Integration with platform-wide event messaging system
- Billing event replay and debugging capabilities
- Event-based billing analytics and monitoring
- Scalable event processing with queuing and batching
- Event schema management and versioning
✅ Acceptance Criteria
- Billing event sourcing system with comprehensive event store
- Event-driven workflow orchestration for billing processes
- Asynchronous event processing with reliable handlers
- Integration with platform event messaging infrastructure
- Event replay capabilities for debugging and recovery
- Event-based analytics and real-time monitoring
- Scalable event processing with queue management
- Event schema management with versioning support
- API endpoints for event management and monitoring
- Unit tests covering all event-driven scenarios
📈 Impact, Risks and Benefits
Benefits:
- Improved scalability and system decoupling
- Better integration with other platform components
- Enhanced debugging and troubleshooting capabilities
- More flexible and maintainable billing workflows
Risks:
- Increased system complexity and architectural overhead
- Event ordering and consistency challenges
- Performance implications of event processing
- Learning curve for development team
Impact:
- Critical for long-term system scalability and maintainability
- Significant impact on integration capabilities
- Important for system observability and debugging
📚 Context and Examples
Similar to how platforms like Shopify, Stripe, or modern SaaS architectures implement event-driven billing with event sourcing and messaging systems.
🔧 Technical Requirements
- Backend/API changes required
- Database schema changes required
- Third-party integrations needed
- Documentation updates needed
- Tests must be written
🖇️ Related Issues
Related to system architecture, event messaging, billing workflows, and platform integration capabilities.