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

Extending the module's API

There are many ways we can extend our module, for example, we could make it support more MP3 types, but this is merely leg work. It just takes finding out the different sync words and bitrates for different types of MP3, and then adding these to the relevant places.

For a more interesting venture, we could extend the API, creating more options for our module users.

Since we use a stream to read our MP3 file, we could allow the user to pass in either a filename or a stream of MP3 data, offering both ease (with a simple filename) and flexibility (with streams). This way we could start a download stream, STDIN stream, or in fact any stream of MP3 data.

Getting ready

We'll pick up our module from where we left it at the end of Allowing for multiple instances in the There's more... section of the previous recipe.

How to do it...

First, we'll add some more tests for our new API. In tests/index.js, we'll pull out the callback function from the mp3dat.stat call into the global...