Complex event flows in distributed systems

Description

Event-driven architectures enable nicely decoupled microservices and are fundamental for decentralized data management. However, using peer-to-peer event chains to implement complex end-to-end logic crossing service boundaries can accidentally increase coupling. Extracting such business logic into dedicated services reduces coupling and allows you to keep sight of larger-scale flows without violating bounded contexts, harming service autonomy, or introducing god services. Service boundaries get clearer and service APIs get smarter by focusing on their potentially long-running nature.

Bernd Rücker explores how the new generation of lightweight and highly scalable state machines eases the implementation of long-running services. He shares real-life experiences to show you how to handle complex logic and flows that require proper reactions on failures, timeouts, and compensating actions and provides guidance backed by code examples to illustrate alternative approaches.