With the rise of microservices and serverless clouds, the world is moving toward event-driven architectures composed of diverse, distributed systems and services. In this world, we have to manage business transactions and end-to-end processes that cross the boundary of individual services. Although event-driven choreography is fundamental to achieving nicely decoupled systems, complex event chains can cause headaches.
Bernd Rücker and Martin Schimak explain why transforming certain events into commands is beneficial and how to avoid losing sight of larger-scale flows. Bernd and Martin also demonstrate how to leverage existing technology to handle complex flows that require state handling, proper reactions on errors, timeouts, and compensating actions.
Bernd Rücker is a technology evangelist and cofounder at Camunda. Bernd started developing Java more than 15 years ago, when the world was still three-tiered and using ACID transactions. Previously, he was a consultant, coaching clients on their software projects and helping them implement business logic centered around long running flows. Bernd is excited about how flows will be implemented in next-generation architectures.
Martin Schimak is a software developer at Plexiti. In his 15+-year career, Martin has helped implement complex business processes at a number of companies, including energy trading at E.ON, wind tunnel organization at BMW, and contract management for Telefónica. He has made manifold open source contributions on GitHub. Martin has a soft spot for readable APIs and testable specs, and as a curious domain “decoder," he is on a first-name basis with domain-driven design, BPMN, DMN, and CMMN. He is an editorial member of the well-read German software magazine OBJEKTspektrum and writes about topics such as Agile, microservices, and the particularly exciting field of long-running behavior. In his spare time, Martin organizes several meetups in his hometown of Vienna, Austria.
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