Book Image

Architecting Angular Applications with Redux, RxJS, and NgRx

By : Christoffer Noring
Book Image

Architecting Angular Applications with Redux, RxJS, and NgRx

By: Christoffer Noring

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)

@ngrx/store – state management

All of the files in this section points to Chapter9/State project.

This is the moment we have been waiting for. How do we actually get started? It's really easy. Let's first ensure we have installed Angular CLI. We do so by typing the following in our terminal:

npm install -g @angular/cli

At this point, we need an Angular project. We use the Angular CLI for that, and scaffold ourselves a new project using the following command:

ng new <my new project>

Once the scaffolding process is done, we navigate to our newly created director project with a simple cd <project dir>.We want to use the core functionality provided in the @ngrx/store library, therefore we install it by typing the following:

npm install @ngrx/store --save 

Let's now open up the app.module.ts file in our scaffolded project. The time has come to import...