Spring Reactor

Spring Reactor is a reactive programming library for building non-blocking, asynchronous applications on the JVM, part of the Spring ecosystem. It implements the Reactive Streams specification to handle data streams with backpressure, enabling efficient resource usage and scalability. It provides core types like Mono and Flux for composing reactive sequences.

Also known as: Reactor, Project Reactor, Spring Reactor Core, Reactor Core, Reactive Spring

Why learn Spring Reactor?

Developers should learn Spring Reactor when building high-performance, scalable applications that require handling concurrent requests or real-time data streams, such as microservices, IoT systems, or streaming APIs. It's essential for leveraging reactive programming in Spring-based projects like Spring WebFlux to improve throughput and responsiveness under load.

Learning Resources

• docs: Project Reactor Reference Guide
• tutorial: Reactive Programming with Reactor 3 - Baeldung
• docs: Spring Reactive Programming with Reactor - Spring.io
• video: Reactor 3 Tutorial - YouTube by Devoxx
• book: Hands-On Reactive Programming with Reactor - Book by Packt