Are you curious to learn how to modernize 10 years old Java applications to gain benefits from the cloud? Do you want to try this yourself following step by step instructions? Then you should check out my repo which I'm going to describe in this article and the embedded video. (more…)

My last article Developing Micro Frontends with Single-Spa explained how to break down monolithic web applications in micro frontends using single-spa. In order to ensure loosely coupling between the micro frontends, I've used RxJS in my sample application. (more…)

In the process of building new or modernizing older applications, backend functionality is often broken down in multiple microservices. Without modular frontends though, applications often don't gain the benefits of modern cloud native architectures like continuous deliveries and the abilities to update components separately from each other. (more…)

One of the advantages of microservices based architectures is that parts of applications can be updated independently from each other. However, in the process of modularizing applications the frontends are often forgotten. (more…)

When building applications and microservices for container environments like Kubernetes and OpenShift, efficient usage of resources is key. Similarly to popular frameworks like Node.js/JavaScript, the open source Java framework Quarkus comes with capabilities to build reactive applications to reduce the usage of memory and start up times significantly making Java ready for containers. (more…)

The strangler pattern is a common methodology to break down monoliths in microservices. However caution needs to be taken to prevent building distributed monoliths. This article describes how to use event driven architectures for loosely coupled microservices. (more…)

In my previous article Strangler Pattern Example I explained why it might make sense to modernize monoliths and start using microservices. In my sample application breaking down the monolith in separate microservices adds value, since the different services can be scaled separately. (more…)

According to recent surveys, Kubernetes and microservices have become mainstream and most companies use these technologies in production today. That's good, but when exactly should you use these technologies and how do you get started? (more…)

The topic microservices has been a hype topic for the last several years and many developers are using this concept when structuring and implementing code nowadays. However, as always, every technology has advantages and disadvantages. So when I'm asked whether microservices architectures make sense, my answer is: It depends! (more…)

The modernization of applications is done in multiple steps. The previous articles described how to convert a 10+ years old Java EE into an Open Liberty application. This article explains how to change the structure of the application to be more productive for future extensions. (more…)