Kafka er et populært grunnlag for event-driven arkitekturer — hvor tjenester kommuniserer gjennom events i stedet for direkte anrop. Kafkas varige, skalerbar event-logg gjør det godt egnet for event-driven systemer, event sourcing og CQRS.
Kafka som event-backbone
In event-driven architecture, services emit and react to EVENTS:
→ a service publishes events to Kafka ("OrderPlaced", "PaymentReceived")
→ other services CONSUME and react (decoupled — the producer doesn't know the consumers)
→ Kafka = the durable, scalable EVENT BACKBONE connecting services
→ services are decoupled, communicating via events through Kafka
