Introduction and Advanced features of the Axon Framework

Day 1 - Introduction to Axon Framework

This one-day, hands-on course will start by setting up the infrastructure components and organizing the codebase practically. Then, through theory and practical exercises you will explore the following topics

  • Aggregates: learn how to design, implement, and test Aggregates
  • Command handling: implementing and configuring the commands and its handlers;
  • Event handling: implementing and configuring the event handlers; async vs sync, transaction management;
  • Event sourcing: how to apply event sourcing, snapshotting, and reconstructing a projection from historic events;
  • Sagas: coordinating activity between components – implementation, configuration, testing, and common pitfalls.


  • Understanding the fundamentals of Event sourcing and Domain Driven Design
  • Learning how to set up projects with Axon for developing complex, future-proof applications.
  • Experience how Axon Framework helps to securely put the domain model into production
  • Get started quickly!


  • Get the development team facing in the same direction
  • Help to align the domain design language and principles and develop a strong connection between the architects, developers, product owners, and business problem owners.
  • Avoid common pitfalls in project setup, saving time and boosting productivity
  • Expert’s answers to specific/advanced questions as they relate to your projects

Day 2 - Advanced features of the Axon Framework

The second day, you will learn more about the advanced features of the Axon Framework. It covers several strategies to scale out, as well as important aspects to deal with when operating applications in production.

  • Refactoring and evolving your application: evolving Commands and Events, Upcasting, changes in Aggregate boundaries
  • Building Microservices with Axon: distributed systems, distributed command and event handling, designing events for distribution
  • Replaying the Event Store
  • Integration and deployment in production
  • Monitoring, measuring throughput and latency, message tracing
  • Advanced configuration and tuning: message interceptors, serialization, unit of work


  • Gain a thorough understanding of how to apply Event sourcing and Domain Driven Design
  • Learning how to set up projects with the Axon Framework for developing complex, scalable and future-proof applications.
  • Experience how to evolve applications built on Axon Framework to get the most out of available data


  • Get familiar with the concepts required to use Axon Framework in complex and large-scale environments
  • Avoid common pitfalls in project setup
  • Validate and enhance your ideas and experience with Axon Framework experts
  • Expert’s answers to specific/advanced questions


The Axon training courses and workshop are designed for Software Architects, Software Developers, Technical Team Leads and Enterprise Architects.


  • A good understanding of the Java language is required.
  • Enterprise application development experience is recommended.
  • Developers are expected to bring their own laptop with the IDE of their choice.


  • Instructor-led classes
  • Best practices and know-how embedded in hands-on labs
  • Interactive learning environment with strong Q&A
  • Available in English

If you have any question about this training, contact us.


Steven van Beelen

Lead developer Axon Framework, AxonIQ

Steven van Beelen is a Lead developer at AxonIQ with a keen interest in new and exciting technologies and methodologies.

The last couple of years this interest has chiefly been fulfilled by the Axon Framework and how it approaches software architecture. This eventually led him to become a part of the AxonIQ team. There, he currently helps small and large clients build Axon applications, gives training in it, develops the framework and is overall active in the Axon community. Always keen to learn and improve himself in the software space, he reads up on more abstract concepts like domain driven design, messaging patterns and event sourcing. He also keeps himself up to date with more concrete topics like new frameworks and languages to improve his skill as a developer.

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Vliegend Hertlaan 43, Utrecht

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