DeveloperWeek New York 2019

Reactive is one of the buzzwords in the programming world.  So what does reactive really mean, and why should we as systems architects and developers care?  This talk gives an introduction to reactive systems and programming. It starts by going over the basic tenets of reactive systems, and explains the differences between reactive programming on the coding level, and reactive systems design on the architecture level.  It will then compare reactive programming with the traditional imperative programming paradigm, and discusses about how reactive programming is structured around the asynchronous data streams, events, messages, and the Observer design pattern. It will highlight the benefits of reactive systems as well as a few of the challenges that these systems face.  A few popular Java and Javascript reactive frameworks and toolkits will also be mentioned.