Book Image

Angular Design Patterns and Best Practices

By : Alvaro Camillo Neto
2 (1)
Book Image

Angular Design Patterns and Best Practices

2 (1)
By: Alvaro Camillo Neto

Overview of this book

Single page applications (SPAs) have become the standard for most web experiences. Angular, with its batteries-included approach, has emerged as a powerful framework for simplifying the development of these interfaces by offering a comprehensive toolbox. This book guides you through the Angular ecosystem, uncovering invaluable design patterns and harnessing its essential features. The book begins by laying a strong foundation, helping you understand when and why Angular should be your web development framework of choice. The next set of chapters will help you gain expertise in component design and architecting efficient, flexible, and high-performing communication patterns between components. You’ll then delve into Angular's advanced features to create forms in a productive and secure way with robust data model typing. You'll also learn how to enhance productivity using interceptors to reuse code for common functionalities, such as token management, across various apps. The book also covers micro frontend architecture in depth to effectively apply this architectural approach and concludes by helping you master the art of crafting tests and handling errors effortlessly. By the end of this book, you'll have unlocked the full potential of the Angular framework.
Table of Contents (19 chapters)
1
Part 1: Reinforcing the Foundations
7
Part 2: Leveraging Angular’s Capabilities
12
Part 3: Architecture and Deployment

Defining an error page and title

In our current project, if the user enters a path that does not have a mapped route, they will be faced with a blank screen. This is not a good user experience (UX) practice; ideally, we need to handle this error by presenting an error page for it to be redirected to the correct page.

First, let’s create the component using the Angular CLI:

ng generate component ErrorPage

Here, we are creating the component directly in AppModule because we want to give this treatment to our entire system and not to a specific functional module.

Let’s create the template for this component with the error message:

<div class="flex h-screen flex-col items-center justify-center">
  <h1 class="mb-4 text-6xl font-bold text-red-500">Oops!</h1>
  <h2 class="mb-2 text-3xl font-bold text-gray-800">Looks like you're lost!</h2>
  <p class="mb-6 text...