I’ve developed a sample that leverages Keycloak to do authentication and authorization in Quarkus applications. In this article I share my experiences and tips. Get the code from GitHub. My sampl...

I’ve built a new sample that leverages Keycloak to do authentication and authorization in Quarkus applications. This article describes how to set up Keycloak in OpenShift, for example Red Hat OpenS...

This article explains how to deploy Quarkus applications on OpenShift as quickly as possible. All you need is an OpenShift cluster with enough memory. Everything else can be done in the browser. I...

This short article describes how to deploy CodeReady Workspaces on OpenShift on IBM Cloud. The deployment is pretty straight forward with one exception which is explained below. Knowing this trick ...

In the context of cloud-native applications the topic ‘reactive’ becomes more and more important, since more efficient applications can be built and user experiences can be improved. If you want to...

As defined on the home page, Quarkus is “a Kubernetes Native Java stack tailored for OpenJDK HotSpot and GraalVM”. Since I’m a big fan of OpenJ9, I’ve quickly measured memory usage of my reactive s...

Quarkus supports imperative as well as reactive programming styles. In this article I compare access times to Postgres from Java based microservices developed with Quarkus. For synchronous invocati...

Recently I blogged about how to develop reactive REST APIs with Quarkus. Developing the actual endpoints asynchronously is the first step. To leverage reactive capabilities maximally though, the co...

This article describes how to implement reactive REST APIs in Java with Quarkus rather than using synchronous endpoints. In order to do this, the Java classes CompletableFuture and CompletionStage ...

Quarkus provides several different reactive messaging capabilities. The open source project cloud-native-starter uses some of these capabilities in a sample application which are described in this ...