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Advanced Spring Boot 4: Event-Driven Architecture (Kafka) · Lesson

Event Notification vs State Transfer

Compare the main event styles, event notification, event-carried state transfer, and event sourcing, and learn when each fits an event-driven system.

Not All Events Are Equal

Event-driven systems use several event styles. Your choice shapes coupling, payload size, and how often consumers must call back to the producer.

Event Notification

Event notification sends a thin message that something happened — usually just an ID. Consumers call back for the details only if they actually need them.

{ "type": "OrderPlaced", "orderId": "8821" }

All lessons in this course

  1. Understanding EDA Principles
  2. Events, Producers, and Consumers
  3. Benefits and Use Cases of EDA
  4. Event Notification vs State Transfer
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