Book Image

Reactive Programming in Kotlin

By : Rivu Chakraborty
Book Image

Reactive Programming in Kotlin

By: Rivu Chakraborty

Overview of this book

In today's app-driven era, when programs are asynchronous, and responsiveness is so vital, reactive programming can help you write code that's more reliable, easier to scale, and better-performing. Reactive programming is revolutionary. With this practical book, Kotlin developers will first learn how to view problems in the reactive way, and then build programs that leverage the best features of this exciting new programming paradigm. You will begin with the general concepts of Reactive programming and then gradually move on to working with asynchronous data streams. You will dive into advanced techniques such as manipulating time in data-flow, customizing operators and provider and how to use the concurrency model to control asynchronicity of code and process event handlers effectively. You will then be introduced to functional reactive programming and will learn to apply FRP in practical use cases in Kotlin. This book will also take you one step forward by introducing you to Spring 5 and Spring Boot 2 using Kotlin. By the end of the book, you will be able to build real-world applications with reactive user interfaces as well as you'll learn to implement reactive programming paradigms in Android.
Table of Contents (20 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback

Reactive programming with Reactor

Just like the ReactiveX Framework, Reactor is also a fourth-generation reactive programming library. It allows you to write non-blocking reactive apps. However, it has some significant differences as compared to ReactiveX, as listed here:

  • Unlike ReactiveX, which supports several platforms and languages (for example, RxSwift for Swift, RxJava for JVM, RxKotlin for Kotlin, RxJS for JavaScript, RxCpp for C++, and so on), Reactor supports only JVM.
  • You can use RxJava and RxKotlin, if you have Java 6+. However, to use Reactor, you need Java 8 and above.
  • RxJava and RxKotlin doesn't provide any direct integration with Java 8 functional APIs, such as CompletableFuture, Stream, and Duration, which Reactor does.
  • If you're planning to implement reactive programming in Android, you have to use RxAndroid, RxJava, and/or RxKotlin (collectively, ReactiveX) or Vert.X, unless you have minimum SDK as Android SDK 26 and above, that too without official support. As reactor project...