Book Image

Hands-On Enterprise Java Microservices with Eclipse MicroProfile

By : Cesar Saavedra, Heiko W. Rupp, Jeff Mesnil, Pavol Loffay, Antoine Sabot-Durand, Scott Stark
Book Image

Hands-On Enterprise Java Microservices with Eclipse MicroProfile

By: Cesar Saavedra, Heiko W. Rupp, Jeff Mesnil, Pavol Loffay, Antoine Sabot-Durand, Scott Stark

Overview of this book

Eclipse MicroProfile has gained momentum in the industry as a multi-vendor, interoperable, community-driven specification. It is a major disruptor that allows organizations with large investments in enterprise Java to move to microservices without spending a lot on retraining their workforce. This book is based on MicroProfile 2.2, however, it will guide you in running your applications in MicroProfile 3.0. You'll start by understanding why microservices are important in the digital economy and how MicroProfile addresses the need for enterprise Java microservices. You'll learn about the subprojects that make up a MicroProfile, its value proposition to organizations and developers, and its processes and governance. As you advance, the book takes you through the capabilities and code examples of MicroProfile’s subprojects - Config, Fault Tolerance, Health Check, JWT Propagation, Metrics, and OpenTracing. Finally, you’ll be guided in developing a conference application using Eclipse MicroProfile, and explore possible scenarios of what’s next in MicroProfile with Jakarta EE. By the end of this book, you'll have gained a clear understanding of Eclipse MicroProfile and its role in enterprise Java microservices.
Table of Contents (18 chapters)
Free Chapter
1
Section 1: MicroProfile in the Digital Economy
4
Section 2: MicroProfile's Current Capabilities
9
Section 3: MicroProfile Implementations and Roadmap
11
Section 4: A Working MicroProfile Example
13
Section 5: A Peek into the Future

To get the most out of this book

A basic understanding of microservices and enterprise Java is required. Other installation and setup instructions are provided where necessary.

Download the example code files

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packtpub.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

  1. Log in or register at www.packt.com.
  2. Select the Support tab.
  3. Click on Code Downloads.
  4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

  • WinRAR/7-Zip for Windows
  • Zipeg/iZip/UnRarX for Mac
  • 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/Hands-On-Enterprise-Java-Microservices-with-Eclipse-MicroProfile. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Download the color images

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The checks array object type consists of a required name and status string, along with an optional data object that contains optional key and value pairs."

A block of code is set as follows:

package org.eclipse.microprofile.health;

@FunctionalInterface
public interface HealthCheck {
HealthCheckResponse call();
}

Any command-line input or output is written as follows:

Scotts-iMacPro:jwtprop starksm$ curl http://localhost:8080/jwt/secureHello; echo
Not authorized

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "The advent and accessibility of the internet created a critical category-formation time opportunity for organizations."

Warnings or important notes appear like this.
Tips and tricks appear like this.