How to connect your Quarkus application to Infinispan

Infinispan is a distributed in-memory key/value data grid. An in-memory data grid is a form of middleware that stores sets of data for use in one or more applications, primarily in memory. There are different clients available to connect to a remote/embedded Infinispan server, In this tutorial we will learn how to connect to Infinispan … Read more

Quarkus vs Spring Boot – part two

In the first tutorial Quarkus vs Spring Boot: What You Need to Know we have compared Spring Boot and Quarkus in relation to the core framework capabilities, memory consumption, cloud readiness and ease of development. In the second part of this article series, we will be comparing which are the actual API that you can … Read more

How to manage the lifecycle of a Quarkus application

CDI Events allow beans to communicate so that one bean can define an event, another bean can fire the event, and yet another bean can handle the event.Let’s see how we can take advantage of this to manage the lifecycle of a Quarkus application. Start from a basic Quarkus project: mvn io.quarkus:quarkus-maven-plugin:1.3.2.Final:create \ -DprojectGroupId=com.sample \ … Read more

Messaging with Quarkus – part one: JMS Messaging

Quarkus includes several options for sending and consuming aysnchronous messages. In this two-parts tutorial we will learn how to send messages using the JMS API, which is well-known to Java Enterprise developers. In the next tutorial we will check out how to use Reactive Messaging to handle messages through the mediation of a Bus. JMS … Read more

Quarkus book is out!

I’m glad to announce Packt Publishing just published my latest book “Hands-On Cloud-Native Applications with Java and Quarkus: Build high performance Java microservices on Kubernetes” !   Build robust and reliable Java applications that works on modern infrastructure such as containers and cloud using the latest features of Quarkus 1.0 Key Features Build applications with … Read more

Securing Quarkus with Elytron Database Realm

Quarkus security includes several extensions from Elytron. In this tutorial we will learn how to use the Database Realm Authentication with a simple REST Service. Our project will perform authentication against the H2 in-memory database. In order to bootstrap our project we will need the following extensions mvn io.quarkus:quarkus-maven-plugin:1.0.0.CR1:create \ -DprojectGroupId=com.mastertheboss \ -DprojectArtifactId=quarkus-jdbc-realm \ -DclassName=”com.mastertheboss.SecuredResource” … Read more

Using Servlet Context in Quarkus

Quarkus includes the undertow extension, therefore it’s fully capable of delivering Servlet applications. In this example, we will show how to use the ServletContext in a REST Application. One challenge is that you cannot @Inject the ServletContext directly as you would do it in a Jave EE environment. Nevertheless you can count on the JAX-RS … Read more

Scheduling periodic Tasks in Quarkus

Quarkus does not provide support for EJB therefore you cannot rely on EJB Timers to schedule simple tasks. However, thanks to the extension quarkus-scheduler it is very simple to add this functionality. Let’s create a simple project with Quarkus Maven plugin: mvn io.quarkus:quarkus-maven-plugin:0.19.1:create \ -DprojectGroupId=com.sample \ -DprojectArtifactId=demo-scheduler \ -DclassName=”com.sample.CountEndpoint” \ -Dpath=”/count” \ -Dextensions=”scheduler” By the … Read more

Creating an Ajax front-end to a Quarkus REST application

In this article we will check out how query a REST Service running with Quarkus with a minimal Ajax and jQuery client. Quarkus applications can be quickly bootstrapped using the Maven or Gradle plugin available. The plugin will generate a minimal project structure with a sample REST Endpoint and the Quarkus’s Maven dependencies included in … Read more