Book Image

AngularJS by Example

By : Chandermani
Book Image

AngularJS by Example

By: Chandermani

Overview of this book

<p>AngularJS makes web JavaScript web development less painful and more organized – it’s unsurprising that today it’s one of the most popular tools in web development.</p> <p>AngularJS by Example helps you get started with this essential web development framework quickly and easily, guiding you through AngularJS by showing you how to create your own real-world applications. By adopting this approach, you can bridge the gap between learning and doing immediately, as you follow the examples to learn the impressive features of Angular and experience a radically simple–and powerful–approach to web development.</p> <p>You’ll begin by creating a simple Guess the Number game, which will help you get to grips with the core components of Angular, including its MVC architecture, and learn how each part interacts with one another. This will give you a solid foundation of knowledge from which you can begin to build more complex applications, such as a 7 minute workout app and an extended personal trainer app. By creating these applications yourself, you will find out how AngularJS manages client-server interactions and how to effectively utilize directives to develop applications further. You’ll also find information on testing your app with tools such as Jasmine, as well as tips and tricks for some of the most common challenges of developing with AngularJS.</p> <p>AngularJS by Example is a unique web development book that will help you get to grips with AngularJS and explore a powerful solution for developing single page applications.</p>
Table of Contents (15 chapters)
AngularJS by Example
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

$http service basics


The $http service is the primary service for making an AJAX request in AngularJS. The $http service provides an API to perform all HTTP operations (actions) such as GET, POST, PUT, DELETE, and some others.

HTTP communication is asynchronous in nature. When making HTTP requests, a browser does not wait for the response to arrive before continuing processing. Instead, we need to register some callback functions that are invoked in the future when the response arrives from the server. The AngularJS Promise API helps us streamline this asynchronous communication and we use it extensively while working with the $http service, as you will see later in this chapter.

The basic $http syntax is:

$http(config)

The $http service takes a configuration object as a parameter and returns a promise. The config object contains a set of properties that affect the remote request behavior. These properties include arguments such as the HTTP action type (GET, POST, PUT,…), the remote server URL...