[VDZ22] Taming the event chaos with a workflow engine by Filip Hrisafov, Joram Barrez

So, you’ve built your solution: a couple of microservices, a shiny UI and a dash of event sourcing using Kafka to tie it all together. However, now legal comes along and they’re asking to get insight on which data is used where and by whom. Marketing wants to generate daily PDF reports for the homepage. Management is requesting that a ticket gets created whenever something goes wrong with a business-critical event. Another department wants to reuse some of the events for a customized integration with a legacy system. Soon enough, it’s chaos. Pure pandemonium. A cobweb of scattered data and services calling each other or external API’s. And nobody around anymore can keep the oversight. In this session we present how to solve these problems with Flowable, an open source set of engines implementing the BPMN (process), CMMN (case) and DMN (rules) standards. Through multiple live-demos and lots of code examples, we demonstrate how to orchestrate, manipulate and eventually tame the event chaos using Flowable, Spring Boot and Kafka.