Axon for CQRS Architecture

Abstract

In Chapter 11, you learned about events and event-driven architecture, and you also looked into the theorems and constraints within which any EDA-based application can operate. Microservices architecture inherently bring partitions, hence concrete mechanisms to attain partition tolerance are of great importance. You will do that in this chapter with the help of Axon. Axon is a lightweight framework that will help you develop applications following the CQRS pattern. The Axon framework is licensed under the Apache 2 license so you can use the framework in any application for free. However, if you need professional services around Axon, they are provided by AxonIQ B.V., which is based in Amsterdam.