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Node Web Development - Second Edition

Starting

David Herron
July 2013

JavaScript is no longer just for browsers and this exciting introduction to Node.js will show you how to build data-intensive applications that run in real time. Benefit from an easy, step-by-step approach that really works.

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Book Details

ISBN 139781782163305

Paperback248 pages

About This Book

Learn about server-side JavaScript with Node.js and Node modules.
Website development both with and without the Connect/Express web application framework.
Developing both HTTP server and client applications.

Who This Book Is For

This book is for anybody looking for an alternative to the "P" languages (Perl, PHP, Python), or anyone looking for a new paradigm of server-side application development. The reader should have at least a rudimentary understanding of JavaScript and web application development.

Chapter 1: About Node

The capabilities of Node

Why should you use Node?

What's in a name – Node, Node.js, or Node.JS?

Summary

Chapter 2: Setting up Node

System requirements

Installing Node using package managers

Installing the StrongLoop Node distribution

Installing from source on POSIX-like systems

Installing developer tools on Mac OS X

Run a few commands; testing the commands

npm – the Node package manager

Starting Node servers at system startup

Summary

Chapter 3: Node Modules

Defining a module

Node package manager

Summary

Chapter 4: HTTP Servers and Clients – A Web Application's First Steps

Sending and receiving events with EventEmitters

HTTP server applications

HTTP Sniffer – listening to the HTTP conversation

Web application frameworks

Getting started with Express

Calculating the Fibonacci sequence with Express

Making HTTP Client requests

Calling a REST backend service from an Express application

Summary

Chapter 5: Implementing a Simple Express Application

Express and the MVC paradigm

Creating the Notes application code

Changing the look of an Express application

Scaling up and running multiple instances

Summary

Chapter 6: Data Storage and Retrieval

Asynchronizing the Notes application

Storing notes in files

Storing notes with the LevelUP data store

Storing notes in SQL – SQLite3

Storing notes the ORM way with the Sequelize module

Storing notes in MongoDB with Mongoose

Summary

Chapter 7: Multiuser Authorization, Deployment, Scaling, and Hosting

User authentication

Deploying Notes on Debian

Scaling to use all cores on multi-core servers

Deploying Notes on cloud hosting (AppFog)

Summary

Chapter 8: Dynamic Interaction between the Client and Server Application

Adding real-time web features to Notes

Introducing Socket.IO

Initializing Socket.IO with Express

Events between the Notes server and client code

Running the Notes application with Socket.IO

Sending messages between users

Summary

Chapter 9: Unit Testing

Testing asynchronous code

Assert – the simplest testing methodology

Testing a model

Testing router functions

Making it easy to run the tests

Summary

What You Will Learn

Discover the role of server-side JavaScript in web application development
Explore architecture choices in Node.js for performance and throughput
Install and use Node.js for both development and deployment
Use the Connect and Express application frameworks
Deploy both SQL and MongoDB database systems

In Detail

Node.js is a JavaScript platform using an event-driven, non-blocking I/O model allowing users to build fast and scalable data-intensive applications that run in real time.

This book gives you an excellent starting point and goes straight to the heart of developing web applications with Node.js. You will go from a rudimentary knowledge of JavaScript or server-side application development to being able to create and maintain your own Node.js application.

Node Web Development shows that JavaScript is not just for browsers anymore. It can be used for web application development, for developing any Internet protocol, for real-time applications, and much more. With this book you will learn through practical examples how to use the HTTP Server and client objects as well as both SQL and MongoDB databases. The book explains how application algorithms are expected to cooperate correctly with the event loop, and gives advice on algorithm refactoring for asynchronous execution through the event loop.

Authors

David Herron

David Herron has worked as a software engineer and software quality engineer in Silicon Valley for over 20 years. Recently he worked for Yahoo! as an architect of the Quality Engineering team for their new Node.js based web app platform (Manhattan and Mojito). While a staff engineer at Sun Microsystems, David worked as an architect of the Java SE Quality Engineering team where he focused on test automation tools, including the AWT Robot class that's now widely used in GUI test automation software. He was involved with launching the OpenJDK project, and other open source activities related to Java. Before Sun he worked for VXtreme on the video streaming stack which eventually became Windows Media Player when Microsoft bought that company. At The Wollongong Group he worked on both the e-mail client and server software and was part of several IETF working groups improving e-mail-related protocols.