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 overview

NgRx consists of the following parts:

  • @ngrx/store: This is the core that contains a way for us to maintain state and dispatch actions.
  • @ngrx/effects: This will handle side effects such as, AJAX requests, for example.
  • @ngrx/router-store: This ensures we can integrate NgRx with the Angular routing.
  • @ngrx/store-devtools: This will install a tool that gives us the opportunity to debug NgRx by, for example, giving us a time travel debugging functionality.
  • @ngrx/entity: This is a library that helps us manage record collections.
  • @ngrx/schematics: This is a scaffolder library that helps you when using NgRx.

A word on state management

Some components must have state. When there is a need for another component to know...