Event-Driven Architecture for Microservices

Calendar February 22, 2026
Microservices
Intermediate, Advanced
Event-Driven-Design, Message-Broker-Operations, Saga-Orchestration, Consistency-Pattern-Selection
Event-Driven, Event-Sourcing, Cqrs, Saga-Pattern, Outbox-Pattern, Kafka, Rabbitmq, Nats, Eventual-Consistency, Message-Brokers
Kafka, Rabbitmq, Nats, Debezium, Kafka-Connect, Schema-Registry

Event-Driven Architecture for Microservices#

In a microservices architecture, services need to communicate. The two fundamental approaches are synchronous (request-response) and asynchronous (event-driven). Most systems use both – the decision is which interactions should be synchronous and which should be event-driven.

Synchronous vs Asynchronous Communication#

Synchronous (request-response): Service A calls Service B and waits for a response. Simple, familiar, and works well when A needs the response to continue. The cost is temporal coupling – if B is down, A fails.