Kafka ni msingi maarufu kwa event-driven architectures — ambapo services huwasiliana kupitia events badala ya calls za moja kwa moja. Event log ya Kafka inayoaminika na inayoweza kuongezeka inafanya iwe inayofaa kwa mifumo ya event-driven, event sourcing, na CQRS.
Kafka kama 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
