Book Image

Mastering Node.js

By : Sandro Pasquali
Book Image

Mastering Node.js

By: Sandro Pasquali

Overview of this book

Node.js is a modern development stack focused on providing an easy way to build scalable network software. Backed by a growing number of large companies and a rapidly increasing developer base, Node is revolutionizing the way that software is being built today. Powered by Google's V8 engine and built out of C++ modules, this is a JavaScript environment for the enterprise.Mastering Node.js will take the reader deep into this exciting development environment. Beginning with a comprehensive breakdown of its innovative non-blocking evented design, Node's structure is explained in detail, laying out how its blazingly fast I/O performance simplifies the creation of fast servers, scalable architectures, and responsive web applications.Mastering Node.js takes you through a concise yet thorough tour of Node's innovative evented non-blocking design, showing you how to build professional applications with the help of detailed examples.Learn how to integrate your applications with Facebook and Twitter, Amazon and Google, creating social apps and programs reaching thousands of collaborators on the cloud. See how the Express and Path frameworks make the creation of professional web applications painless. Set up one, two, or an entire server cluster with just a few lines of code, ready to scale as soon as you're ready to launch. Move data seamlessly between databases and file systems, between clients, and across network protocols, using a beautifully designed, consistent, and predictable set of tools.Mastering Node.js contains all of the examples and explanations you'll need to build applications in a short amount of time and at a low cost, running on a scale and speed that would have been nearly impossible just a few years ago.
Table of Contents (20 chapters)
Mastering Node.js
About the Author
About the Reviewers

Chapter 6. Creating Real-time Applications


Nothing endures but change.


What is real-time software? A list of friends gets updated the instant one joins or exits. Traffic updates automatically stream into the smartphones of drivers looking for the best route home. The sports page of an online newspaper immediately updates scoreboards and standings as points are scored in an actual game. Users of this type of software expect reactions to change to be communicated quickly, and this expectation demands a particular focus on reducing network latency from the software designer. Data I/O updates must occur along subsecond time frames.

Let's step back and consider the general characteristics of the Node environment and community that make it an excellent tool for creating these kinds of responsive network applications.

Some validation of Node's design, it may be argued, is found in the enormous community of open developers contributing enterprise-grade Node systems, some teams financially...