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

Chapter 6. More on Operators and Error Handling

In the previous chapter, we learned about operators and how to use them. We learned how operators can help us in solving complex problems with ease. We got a grip on operators and their types, and we learned basic filtering operators and transforming operators in detail. It's time to move on to some interesting and advanced things you can do with operators.

We will cover the following topics in this chapter:

  • Combining producers (Observable/Flowable)
  • Grouping emissions
  • Filtering/suppressing operators
  • Error handling operators
  • Real-world HTTP client example

So, what are we waiting for? Let's get started with combining producer (Observable/Flowable) instances.