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Event-Driven Architecture
An event-driven architecture is a design pattern where services communicate through asynchronous events. Producers generate events sent to an event bus or message queue. Consumers subscribe to events and react accordingly, enabling decoupled, independently scalable services.
Key Components
Event Producer
Event Consumer
Message Broker (Kafka)
Event Schema Registry
Monitoring & Alerting
Design Challenge
Ensuring exactly-once processing of events and managing complexity of long-running, multi-step sagas.