Command-Query Responsibility Separation

Allard Buijze shares the lessons he learned on DDD (and CQRS) while building the Axon Framework. How can a framework help developers build better software, faster? Why do certain frameworks fail, and take you down with them? How can a framework promote, instead of inhibiting, the use of a good model?

This session will begin with a fast-paced review of the core CQRS/ES principles and their implementation in Axon. After that, we'll focus on the various performance challenges and approaches to solving them.

In this session, we will first briefly cover what CQRS and Event Sourcing are, and how it addresses some common requirements that modern applications have. Next, we will open up the IDE and see how the open-source Axon Framework can help you get up and running with Event Sourcing in mere minutes. Once we have the application running, we will scale the application out, where Axon will ensure optimal routing of messages between components, regardless of how they have been deployed.

In this session, we will first briefly cover what CQRS and Event Sourcing are, and how it addresses some common requirements that modern applications have. Next, we will open up the IDE and see how the open-source Axon Framework can help you get up and running with Event Sourcing in mere minutes.

This interview was recorded at GOTO Berlin 2018. Allard Buijze - Creator of Axon Framework

Let Pivotal and AxonIQ take you on a journey into Axon Trader. Axon Trader is a new open-source reference architecture that demonstrates how to use Spring, Axon, and Pivotal Cloud Foundry to deliver evolutionary microservice applications to prod in minutes.

In this session, we will first briefly cover what CQRS and Event Sourcing are, and how it addresses some common requirements that modern applications have. Next, we will open up the IDE and see how Spring Boot and Axon Framework work neatly together to get you up and running with Event Sourcing in mere minutes.

GOTO Berlin 2016 Allard Buijze - CTO at Trifork Amsterdam

In this presentation, we take a DDD / CQRS approach to implementing Microservices, focusing on the messaging between individual services. We will discuss different approaches to ensure decoupling of services on the API level, as well as ways to ensure flexibility to change the system's behavior at runtime simply by switching services on and off.