Book Image

Learning Angular - Fourth Edition

By : Aristeidis Bampakos, Pablo Deeleman
5 (1)
Book Image

Learning Angular - Fourth Edition

5 (1)
By: Aristeidis Bampakos, Pablo Deeleman

Overview of this book

As Angular continues to reign as one of the top JavaScript frameworks, more developers are seeking out the best way to get started with this extraordinarily flexible and secure framework. Learning Angular, now in its fourth edition, will show you how you can use it to achieve cross-platform high performance with the latest web techniques, extensive integration with modern web standards, and integrated development environments (IDEs). The book is especially useful for those new to Angular and will help you to get to grips with the bare bones of the framework to start developing Angular apps. You'll learn how to develop apps by harnessing the power of the Angular command-line interface (CLI), write unit tests, style your apps by following the Material Design guidelines, and finally, deploy them to a hosting provider. Updated for Angular 15, this new edition covers lots of new features and tutorials that address the current frontend web development challenges. You’ll find a new dedicated chapter on observables and RxJS, more on error handling and debugging in Angular, and new real-life examples. By the end of this book, you’ll not only be able to create Angular applications with TypeScript from scratch, but also enhance your coding skills with best practices.
Table of Contents (17 chapters)
15
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16
Index

Authentication and authorization with HTTP

The Fake Store API provides an endpoint for authenticating users with a username and a password. It contains a login method that accepts a username and a password as parameters and returns an authentication token. We will use the authentication token in our application to differentiate between a logged-in user and a guest.

The username and password are provided by a predefined pool of users at https://fakestoreapi.com/users.

We will explore the following authentication and authorization topics in this section:

  • Authenticating with a backend API
  • Authorizing users for certain features
  • Authorizing HTTP requests using interceptors

Let’s get started with how to authenticate with the Fake Store API.

Authenticating with backend API

In Angular real-world applications, we usually consider authentication as an application feature. So, we will create a new Angular module that will handle...