Reactive Programming Spring Boot, Spring Webflux with MongoDB Example, Spring Boot Reactive, Reactive REST API, Spring Webflux CRUD Example, How to develop a Reactive CRUD REST API with Spring WebFlux?, Reactive Stack vs Servlet Stack, Spring Reactive Client with WebClient etc. In this article, we will discuss about ''How to develop a Reactive CRUD REST API with Spring WebFlux?''. In other words, we will be talking about a new way of working in REST APIs which is Reactive Programming. No doubt, if we talk about the performance, this way is faster than the traditional way of developing REST. Moreover, Reactive Programming offers us to utilize application resources optimally. We will also discuss how to work with the concept of Spring WebFlux