flatmap and switchifempty in Spring Reactive
Here, we provide examples for flatmap and switchIfEmpty operators with Mono and Flux publishers. Basically the switchIfEmpty is used when publisher emits nothing.
What are flatmap and switchifempty in Spring Reactive?
Spring WebFlux is a part of the Spring Framework that provides reactive programming support for web applications. It introduces reactive types like Mono and Flux publishers which are fundamental to its programming model. Mono and Flux play crucial roles in reactive programming. The reactive programming introduces a lot of operators to handle the business logic like flatmap, onErrorResume, map, zip, just, and other reactor operators. In this article, we explain what flatmap and switchIfEmpty.
Prerequisites:
To understand this content, you should know the topics below are easy to understand.
- Spring Framework
- Spring Reactor Programming
- Publisher and Consumer Concepts
- Event flow in Reactive Streams
- Operators in Spring Reactor
- Concept of Subscription
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