Book Image

Hands-On Cloud-Native Applications with Java and Quarkus

By : Francesco Marchioni
Book Image

Hands-On Cloud-Native Applications with Java and Quarkus

By: Francesco Marchioni

Overview of this book

Quarkus is a new Kubernetes-native framework that allows Java developers to combine the power of containers, microservices, and cloud-native to build reliable applications. The book is a development guide that will teach you how to build Java-native applications using Quarkus and GraalVM. We start by learning about the basic concepts of a cloud-native application and its advantages over standard enterprise applications. Then we will quickly move on to application development, by installing the tooling required to build our first application on Quarkus. Next, we’ll learn how to create a container-native image of our application and execute it in a Platform-as-a-Service environment such as Minishift. Later, we will build a complete real-world application that will use REST and the Contexts and Dependency injection stack with a web frontend. We will also learn how to add database persistence to our application using PostgreSQL. We will learn how to work with various APIs available to?Quarkus?such as Camel, Eclipse MicroProfile, and Spring DI. Towards the end, we will learn advanced development techniques such as securing applications, application configuration, and working with non-blocking programming models using Vert.x. By the end of this book, you will be proficient with all the components of Quarkus and develop-blazing fast applications leveraging modern technology infrastructure.
Table of Contents (15 chapters)
Free Chapter
Section 1: Getting Started with Quarkus
Section 2: Building Applications with Quarkus
Section 3: Advanced Development Tactics

Introduction to Quarkus Core Concepts

Java was introduced to the open source community over 20 years ago. Since then, we cannot think of a single large IT company or organization that doesn't use Java. For this reason, Java is often regarded as a corporate language, which is not a bad thing per se: Java is the enterprise standard, and it's an extremely mature language with a huge ecosystem of tools and libraries around it and still the most used language by developers in the world.

20 years in the IT industry is, however, a considerable amount of time. Since the beginning, Java has gone through a long list of optimizations with the burden of keeping backward compatibility with earlier releases. Today, however, the IT landscape has significantly changed with the rise of new standards such as the cloud, containers, microservices, and Reactive Programming. Do we still need...