Book Image

Angular Services

Book Image

Angular Services

Overview of this book

A primary concern with modern day applications is that they need to be dynamic, and for that, data access from the server side, data authentication, and security are very important. Angular leverages its services to create such state-of-the-art dynamic applications. This book will help you create and design customized services, integrate them into your applications, import third-party plugins, and make your apps perform better and faster. This book starts with a basic rundown on how you can create your own Angular development environment compatible with v2 and v4. You will then use Bootstrap and Angular UI components to create pages. You will also understand how to use controllers to collect data and populate them into NG UIs. Later, you will then create a rating service to evaluate entries and assign a score to them. Next, you will create "cron jobs" in NG. We will then create a crawler service to find all relevant resources regarding a selected headline and generate reports on it. Finally, you will create a service to manage accuracy and provide feedback about troubled areas in the app created. This book is up to date for the 2.4 release and is compatible with the 4.0 release as well, and it does not have any code based on the beta or release candidates.
Table of Contents (15 chapters)
Angular Services
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Summary


In this chapter, we learned about how to create parent child interaction mechanisms where the child gets data models provided by the parent and fires back requests to the parent. We saw how to implement components to read the result of previously saved data objects, parse them, and assemble new objects that can be used as building blocks of a report.

We experienced how to optimize the query latency by defining indices in Firebase and we learned how to add various spinners while waiting for an observable object. At the end we saw how simple it is to print a page using pure JavaScript functions.

During the report generation phase we noticed anomalies in the data, and that is why in the next chapter we will focus on how to fix troubled contents and how to prevent them from ending up in our database in the future.