Reactive applications and Reactive programming are an alternative to the standard thread-based imperative programming model that can result in flexible, concise code. The Reactive approach has gained popularity recently for one simple reason: we need alternative designs and architectures to meet today’s demands. However, it can be difficult to shift one’s mind to think in Reactive terms. It doesn’t help that the descriptions around the web can be contradictory and the library documentation can be obscure.
In this talk, we’ll explore the concepts of Reactive and Reactive Programming. We’ll demonstrate some of the useful Reactive functions and examine some practical implementations - including how we’re currently using Reactive libraries in production code. Most importantly, we’ll look at some of the open source options available to us in the Groovy community, including Reactor, RxJava, and the Java 8 stream API. If Reactive is new to you, this should be an excellent introduction.