Quickly and productively build complex Kotlin-based Spring applications and microservices out of the box, with minimal concern over things such as configurations. This revised edition will show you how to fully leverage the Spring Boot 3 micro-framework and apply it to create enterprise-ready Kotlin-based cloud-native applications, microservices, and web applications that just work.

The book covers what has been added to the new Spring Boot 3 release, including improved support for the Kotlin programming language, changes to Stream Editor UI, Maven Preemptive Authentication, building Docker images using cloud-native build packs, building layered jars for optimized Docker images, E2E traceability for configuration properties, many dependency upgrades, support for Spring Data, and much more.

This book is your in-depth pragmatic guide for increasing your enterprise Kotlin and cloud application productivity while decreasing development time. It is a no-nonsense guide with case studies of increasing complexity throughout the book. The main author, a senior solutions architect and Principal Technical instructor at Pivotal, the company behind the Spring Framework, shares his experience, insights, and first-hand knowledge about how Spring Boot technology works, and best practices.

This is an essential book for your Kotlin-based Spring learning and reference library.

What You Will Learn

• Build cloud-native apps and microservices with the Spring Boot 3 framework
• Persist and access your data using and integrating with Spring Data
• Message with Kafka, RabbitMQ, and WebSockets
• Explore Spring Cloud projects
• Extend Spring Boot by creating your own Spring Boot Starter and @Enable feature
• Test and deploy Spring Boot with best practices
• Effectively use Kotlin as a programming language for Spring applications

Peter Späth graduated in 2002 as a physicist and soon afterward became an IT consultant, mainly for Java-related projects. In 2016, he decided to concentrate on writing books on various aspects, but with the main focus on software development. With two books about graphics and sound processing, three books on Android app development, and a beginner’s book on Jakarta EE development, the author continues his effort in writing software development-related literature.

Felipe Gutierrez is a Senior Platform Architect at Pivotal, the creators of Spring Boot and Spring Framework, where he serves as a senior consultant with the Spring team. He has more than 20 years of IT experience, during which time he developed programs for companies in multiple vertical industries such as government, retail, healthcare, education, and banking. He also develops in Groovy, RabbitMQ, and other technologies. Previously he has consulted for companies such as Nokia, Apple, Redbox, and Qualcomm, among others. He received his bachelor and master degrees in computer science from Instituto Tecnologico y de Estudios Superiores de Monterrey Campus Ciudad de Mexico.