Book Image

Reactive Programming with Swift 4

By : Navdeep Singh
Book Image

Reactive Programming with Swift 4

By: Navdeep Singh

Overview of this book

RxSwift belongs to a large family of Rx implementations in different programming languages that share almost identical syntax and semantics. Reactive approach will help you to write clean, cohesive, resilient, scalable, and maintainable code with highly configurable behavior. This book will introduce you to the world of reactive programming, primarily focusing on mobile platforms. It will tell how you can benefit from using RxSwift in your projects, existing or new. Further on, the book will demonstrate the unbelievable ease of configuring asynchronous behavior and other aspects of the app that are traditionally considered to be hard to implement and maintain. It will explain what Rx is made of, and how to switch to reactive way of thinking to get the most out of it. Also, test production code using RxTest and the red/ green approach. Finally, the book will dive into real-world recipes and show you how to build a real-world app by applying the reactive paradigm. By the end of the book, you’ll be able to build a reactive swift application by leveraging all the concepts this book takes you through.
Table of Contents (15 chapters)
Free Chapter
1
Migrating from Swift 3 to Swift 4
2
FRP Fundamentals, Terminology, and Basic Building Blocks
3
Set up RxSwift and Convert a Basic Login App to its RxSwift Counterpart
8
RxTest and Custom Rx Extensions – Testing with Rx
10
Schedule Your Tasks, Don't Queue!
11
Subscribe to Errors and Save Your App
12
Functional and Reactive App-Architecture

Combining and filtering Observable sequences

In the previous chapters, we learned how to create, transform, and filter Observable sequences. You would have found a lot of similarities between filtering of RxSwift, transforming operators, and traditional Swift's standard collection methods. You got acquainted with the true power of RxSwift while working with operators such as flatMap where you had to write very little code to get a great deal of work done.

This chapter will show you various techniques with which you can assemble and combine sequences to control data as desired. Before delving into the concepts, let's set up the project first.

Project setup

As discussed earlier, let's set up a workspace to work...