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

Building Applications Using the MicroProfile API

At this point, you should have a good understanding of how to use the most common Java APIs (CDI, REST, JSON, JPA) in a Quarkus application. In this chapter, we will be adding a whole bunch of APIs called the MicroProfile specification. By mastering the topics in this chapter, you will be able to shape up components that have built upon the core features of the Java EE, which allows for a straightforward development experience when implementing microservices, increasing the robustness of your applications, and reducing the risk of over-designing and reinventing the same patterns. Topics you will learn to include how to add fault tolerance and health checks to your services, how to check your service's metrics, how to trace and document them, and how to create lean REST clients for your endpoints. Other features, such as configuration...