Spring Reactive Programming: Build Scalable WebFlux Applications

As modern web applications handle increasingly massive volumes of concurrent users, traditional blocking architectures can struggle to scale efficiently. Transitioning to a reactive, non-blocking paradigm allows your Java applications to stream data seamlessly and maximize system resources. This text-only course guides you through the shift from synchronous programming to the reactive model using the Spring Framework. You will learn to think in streams, work with functional programming patterns, and build fully reactive microservices that handle high throughput with ease. What you'll learn: - Understand core reactive principles, including backpressure, publishers, subscribers, and the Reactive Streams specification. - Build non-blocking REST APIs using Spring WebFlux with both annotated controllers and the modern functional routing style. - Implement asynchronous, non-blocking database access using Spring Data R2DBC for relational databases. - Consume external APIs efficiently using Spring WebClient to replace traditional blocking REST templates. - Test reactive streams and event pipelines reliably using StepVerifier and modern testing strategies. You will start with foundational concepts of functional programming and reactive data types like Flux and Mono, before progressing to database integration, API creation, and end-to-end testing of non-blocking applications. This course is designed for Java developers who are comfortable with basic Spring Boot but are new to reactive programming and asynchronous architectures. Start reading today to unlock the power of non-blocking, highly scalable Java applications.