Helidon Revealed A Practical Guide to Oracle’s Microservices Framework

This book is your comprehensive introduction to Project Helidon, Oracle’s Java-based microservices framework for building cloud-native applications. The book introduces the two flavors of Helidon—Helidon SE and Helidon MP—and shows how to quickly build applications with each one. 

The book begins by placing the Helidon framework in context and explaining the MicroProfile and Jakarta EE specifications that underlie the building of microservices-based applications. From there, you will learn about the individual components of Helidon SE and Helidon MP, and you will see examples of building applications for both flavors, and for MicroProfile and Jakarta EE. Finally, the book shows how to convert Helidon applications from Java bytecode into native binaries for instant application startup and peak performance. 

What You Will Learn

• Choose correctly between Helidon SE and Helidon MP
• Create starter applications using the Helidon SE and Helidon MP quick starts
• Create server and client applications with Helidon SE components
• Create a microservices-based application with the MicroProfile specifications
• Create a database application with the Jakarta NoSQL specification

Who This Book Is For

Java developers who create microservices applications; those interested in building such applications using the Helidon framework; and developers of microservices applications who want functionality such as native-image support through GraalVM, compatibility with MicroProfile, easy connectivity to database engines, and support for reactive development patterns

Part I. Getting Started.- 1. Introduction to Project Helidon.- 2. The MicroProfile Specification.- 3. The Jakarta EE Specifications.- Part II. Helidon SE.- 4. Generating a Project with Helidon SE.- 5. Helidon Web Server.- 6. Helidon Web Client.- 7. Helidon Config.- 8. Helidon DB Client.- 9. Helidon Security.- Part III. Helidon MP.- 10. Generating a Project with Helidon MP.- 11. Helidon Metrics.- 12. Helidon Fault Tolerance.- 13. Helidon Health Checks.- Appendix A. MicroProfile Release History.- Appendix B. The Jakarta EE Specifications.- Appendix C. Helidon Reactive Web Server.

Michael Redlich has been an active member within the Java community for the past 25 years. He founded the Garden State Java User Group in 2001 that remains in continuous operation. Since May 2016, Mike has served as a Java community news editor for InfoQ where his contributions include news items, technical articles and technical reviews for external authors. He has been the lead Java Queue Editor since July 2021. Mike was named a Java Champion in April 2023.

Mike has presented at venues such as Oracle Code One, JCON, Emerging Technologies for the Enterprise, Trenton Computer Festival (TCF), TCF IT Professional Conference, and numerous Java User Groups. Mike serves as a committer on the Jakarta NoSQL and Jakarta Data specifications, and participates on the leadership council of the Jakarta EE Ambassadors

Mike recently retired from ExxonMobil Technology & Engineering in Clinton, New Jersey with 33½ years of service. His experience included developing custom scientific laboratory applications, web applications, chemometrics, polymer physics, infrared spectroscopy and automotive testing. He also has experience as a Technical Support Engineer at Ai-Logix, Inc. (now AudioCodes) where he provided technical support and developed telephony applications for customers.

Mike makes his home in Flemington, New Jersey with his lovely wife, Rowena, where they spend quality time cycling and traveling to New Orleans, Louisiana and Newport, Rhode Island throughout the year.