Event-Driven Architecture

Services communicate by publishing and subscribing to events.

Python Event Publishing
event_bus.publish("OrderPlaced", {"order_id": 123, "total": 99.99})
  • Loose coupling between services
  • Asynchronous communication
  • Easy to add new subscribers

Event Patterns

Event sourcing, CQRS, and event streaming with Kafka.

Kafka Producer
producer.send("orders", value={"id": 123, "status": "placed"})

Advanced Event Patterns

Event choreography, saga patterns, and distributed tracing.

Spotify Event Architecture

100,000+ events/sec processed across microservices