Event-Driven Architecture
Asynchronous architecture where components communicate through events
Overview
Event-driven architecture is a software design pattern that promotes the production, detection, consumption of, and reaction to events.
Key Benefits
⚡
Loose Coupling
Services are decoupled through event streams
📊
Real-time Processing
React to events as they happen
🔄
Scalability
Handle high-volume event streams efficiently
🎯
Responsiveness
Immediate reaction to state changes
Challenges & Considerations
Event ordering and consistency
Debugging distributed flows
Event schema evolution
Exactly-once delivery guarantees
Monitoring and observability
Best Practices
Use event sourcing for state management
Implement idempotent event handlers
Version your events
Use dead letter queues for failed events
Implement comprehensive logging
Use correlation IDs for tracing
Use Cases
Real-time analytics and dashboards
User activity tracking
Notification systems
IoT data processing
Financial transaction processing
Related Technologies
KafkaRabbitMQAWS EventBridgeRedis StreamsPub/Sub