Book Image

Node Cookbook

By : David Mark Clements
Book Image

Node Cookbook

By: David Mark Clements

Overview of this book

The principles of asynchronous event-driven programming are perfect for today's web, where efficient real-time applications and scalability are at the forefront. Server-side JavaScript has been here since the 90's but Node got it right. With a thriving community and interest from Internet giants, it could be the PHP of tomorrow. "Node Cookbook" shows you how to transfer your JavaScript skills to server side programming. With simple examples and supporting code, "Node Cookbook" talks you through various server side scenarios often saving you time, effort, and trouble by demonstrating best practices and showing you how to avoid security faux pas. Beginning with making your own web server, the practical recipes in this cookbook are designed to smoothly progress you to making full web applications, command line applications, and Node modules. Node Cookbook takes you through interfacing with various database backends such as MySQL, MongoDB and Redis, working with web sockets, and interfacing with network protocols, such as SMTP. Additionally, there are recipes on correctly performing heavy computations, security implementations, writing, your own Node modules and different ways to take your apps live.
Table of Contents (16 chapters)
Node Cookbook
About the Author
About the Reviewers

Converting an object to XML and back again

Since JSON is a string-based representation of a JavaScript object, converting between the two is straightforward. However, XML is less convenient to work with. Nevertheless, there may be times we have to work with it, for instance, if an API works only in XML or if we were contracted with a project that specifies XML support.

There are various non-core XML parsers available. One such parser is the non-core module xml2js. The premise of xml2js is that working with objects in JavaScript is more suitable than working with XML. xml2js provides a basis for us to interact with XML by converting it to a JavaScript object.

In this task, we're going to write a function that uses our profiles object featured in the previous recipe to create a valid XML string, which we'll then push through xml2js, thus converting it back into an object.

Getting ready

Before we start, let's create our file xml_and_back.js, making sure we have our separately modularized profiles...