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  • Book Overview & Buying Beginning Server-Side Application Development with Angular
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Beginning Server-Side Application Development with Angular

Beginning Server-Side Application Development with Angular

By : Borggreve
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Beginning Server-Side Application Development with Angular

Beginning Server-Side Application Development with Angular

By: Borggreve
Buy this Book

Overview of this book

Equip yourself with the skills required to create modern, progressive web applications that load quickly and efficiently. This fast-paced guide to server-side Angular leads you through an example application that uses Angular Universal to render application pages on the server, rather than the client. You'll learn how to serve your users views that load instantly, while reaping all the SEO benefits of improved page indexing. With differences of just 200 milliseconds in performance having a measurable impact on your users, it's more important than ever to get server-side right.
Table of Contents (10 chapters)
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Beginning Server-Side Application Development with Angular
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Beginning Server-Side Application Development with Angular
Credits
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Credits
Contributors
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Contributors
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Preface
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Preface
Lock Free Chapter
1
Creating the Base Application
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Creating the Base Application
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Lesson Objectives
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Server-Side and Client-Side Rendering
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Installing Angular CLI
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Generating a New Application
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Setting Defaults for Angular CLI
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Configuring Global Styles
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Creating UI Modules and Components
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Summary
2
Creating the Application Module and Components
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Creating the Application Module and Components
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Lesson Objectives
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Types of Components
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Generate and Lazy Load the PostsModule
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Creating the Container Components
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Creating a Service to Retrieve Data
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Creating the Presentational Components
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Creating Resolvers to Retrieve Data Using the Router
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Summary
3
Server-Side Rendering
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Server-Side Rendering
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Lesson Objectives
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Generating the Server App
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Adding Dependencies for the Server App
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Adding Run Scripts to package.json
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Implementing a Web Server
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Adding Dynamic Metadata
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Summary
4
Service Workers
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Service Workers
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Lesson Objectives
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What Is a Service Worker?
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What Is a Progressive Web App?
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Installing Dependencies
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Enabling the Service Worker
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Configuring the Service Worker
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Testing the Service Worker
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Debugging the Service Worker
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Summary
1
Index
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Index

Creating Resolvers to Retrieve Data Using the Router

In this section, we will manually create two Injectable classes that act as resolvers and then configure our router to use these resolvers. We will then update our container components to use this resolved data.

A resolver is a class that we can use to fetch the data that we use in our component before the component is displayed. We call the resolvers in the routes where we need the data. In our implementation, the resolvers retrieve the data from the API and return it so it can be displayed in the components.

Note

More information about resolvers can be found at: https://angular.io/guide/router#resolve-pre-fetching-component-data.

Our application is quite neatly structured already, but there is one thing that we can optimize.

In order to see what our problem is, open Chrome Developer Tools and then the Performance tab:

Hit the cog icon and set Network to Slow 3G:

If we now click around in our application, we will see that that our page navigation...

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