1. Introduction to Advanced Spring Boot Concepts
2. Key Architectural Patterns in Microservices - DDD, CQRS, and Event Sourcing
3. Reactive REST Development and Asynchronous Systems
4. Spring Data: SQL, NoSQL, Cache Abstraction, and Batch Processing
5. Securing Your Spring Boot Applications
6. Advanced Testing Strategies
7. Spring Boot 3.0 Features for Containerization and Orchestration
8. Exploring Event-Driven Systems with Kafka
9. Enhancing Productivity and Development Simplification

 Mastering Spring Boot 3.0 is your gateway to building scalable and robust backend systems using the latest techniques. Penned by a seasoned software developer with 20+ years of experience in the tech industry, this book follows a hands-on, step-by-step approach to helping you understand Spring Boot concepts and apply them to real-world projects.

 You'll start by exploring key architectural patterns such as DDD, CQRS, and event sourcing. Next, you'll focus on the nuances of reactive REST development, delve into advanced testing strategies, and fortify your applications' security. You'll also discover the power of containerization and orchestration with Spring Boot 3.0 and unlock its potential for smooth deployments. Additionally, by integrating Kafka, you'll be able to build robust event-driven systems.

 By the end of this book, you'll have become proficient in architectural patterns, testing strategies, and application security. Whether you're an architect, backend developer, or DevOps engineer, this book will help you leverage the advanced features of Spring Boot 3.0 for secure and efficient backend development.

What You Will Learn:

• Leverage reactive programming to build responsive and resilient applications
• Develop reactive and asynchronous RESTful services using Spring Boot
• Explore data management using Spring Data for both SQL and NoSQL databases
• Utilize the new features in Spring Boot 3.0 that facilitate containerization and orchestration
• Secure your Spring Boot applications using various authentication and authorization mechanisms
• Build robust event-driven systems by integrating Apache Kafka with Spring Boot

Who this book is for:

 If you're a Java developer eager to elevate your skills, then Mastering Spring Boot 3.0 is for you. Microservices architects, DevOps engineers, and technical leads who want to enhance their skills in building powerful backend systems with advanced Spring Boot features will also find this book useful. A foundational understanding of microservices architecture and some experience with RESTful APIs will help you get the most out of this book.