Devoxx Poland 2019
from Monday 24 June to Wednesday 26 June 2019.
Author of Mockito Instant and Mockito Cookbook books. Co-author of Applied Continuous Delivery Live Lessons. Co-founder of the Warsaw Groovy User Group and Warsaw Cloud Native Meetup and the DiverseIT initiative.
Lead of Spring Cloud Sleuth, Spring Cloud Contract and Cloud Pipelines projects at Pivotal.
See also http://toomuchcoding.com
Testing Your Message-Driven Application
Jakub Pilimon
(Pivotal)
So you end up with messaging and event-driven architecture. You also have heard about event sourcing and applied this principle in a few places in your code. Everything seems to be working perfectly, you are about to perform the first release and you’ve decided to change the structure of one event. The event you have changed was both used for state reconstruction (event sourcing) and integration (event-driven architecture). Due to that change, out of a sudden, your acceptance environment stopped working… “How come?! I have only changed an implementation detail in my cool event-sourced domain!” said the senior developer.
In this talk, we will chat about how to work with events that are used as integration messages in your system. We will tackle content-negotiation, versioning and acceptance tests.
There will be a lot of Spring Cloud stack and we will see how we can benefit from Consumer Driven Contracts when NOT using REST APIs.