Book Image

Architecting Angular Applications with Redux, RxJS, and NgRx

Book Image

Architecting Angular Applications with Redux, RxJS, and NgRx

Overview of this book

Managing the state of large-scale web applications is a highly challenging task with the need to align different components, backends, and web workers harmoniously. When it comes to Angular, you can use NgRx, which combines the simplicity of Redux with the reactive programming power of RxJS to build your application architecture, making your code elegant and easy to reason about, debug, and test. In this book, we start by looking at the different ways of architecting Angular applications and some of the patterns that are involved in it. This will be followed by a discussion on one-way data flow, the Flux pattern, and the origin of Redux. The book introduces you to declarative programming or, more precisely, functional programming and talks about its advantages. We then move on to the reactive programming paradigm. Reactive programming is a concept heavily used in Angular and is at the core of NgRx. Later, we look at RxJS, as a library and master it. We thoroughly describe how Redux works and how to implement it from scratch. The two last chapters of the book cover everything NgRx has to offer in terms of core functionality and supporting libraries, including how to build a micro implementation of NgRx. This book will empower you to not only use Redux and NgRx to the fullest, but also feel confident in building your own version, should you need it.
Table of Contents (12 chapters)

An even bigger solution

So far, we have been describing a solution that consists of only a product's topic and communication has only taken place from one view to another. In a more realistic application, we would have a lot of topics such as user management, orders, and so on; exactly what they are called is dependent on the domain of your application. As for views, it is quite possible that you will have a ton of views listening to another view, as in this example:

This describes an application that contains four different view components around their own topic. The Customers view contains a list of customers and it allows us to alter which customer we currently want to focus on. The other three supporting views show Orders, Messages, and Friends and their content depends on which customer is currently highlighted. From a Flux standpoint, the Orders, Messages, and Friends...