Contents

About the Author

About the Technical Reviewer

Acknowledgments

Introduction

Chapter 1: Setting up Node.js and Other Essentials

Installing Node.js and NPM

One-Click Installers

Installing with HomeBrew or MacPorts

Installing from a Tar File

Installing Without sudo

Installing from a Git Repo

Multiversion Setup with Nave

Multiversion Setup with NVM

Alternative Multiversion Systems

Checking the Installation

Node.js Console (REPL)

Launching Node.js Scripts

Node.js Basics and Syntax

Loose Typing

Buffer—Node.js Super Data Type

Object Literal Notation

Functions

Arrays

Prototypal Nature

Conventions

Node.js Globals and Reserved Keywords

__dirname vs. process.cwd

Browser Application Programming Interface Helpers

Node.js Core Modules

Handy Node.js Utilities

Reading to and Writing from the File System in Node.js

Streaming Data in Node.js

Installing Node.js Modules with NPM

Taming Callbacks in Node.js

Hello World Server with HTTP Node.js Module

Debugging Node.js Programs

Core Node.js Debugger

Debugging with Node Inspector

Node.js IDEs and Code Editors

Watching for File Changes

Summary

Chapter 2: Using Express.js 4 to Create Node.js Web Apps

What Is Express.js?

How Express.js Works

Express.js Installation

Express.js Version

Express.js Generator

Local Express.js

Express.js Scaffolding

Express.js Command-Line Interface

Routes in Express.js

Middleware as the Backbone of Express.js

Configuration of an Express.js App

Jade Is Haml for Express.js/Node.js

Conclusion About Scaffolding

The Blog Project Overview

Submitting the Data

Express.js 4 Hello World Example

Setting up Folders

NPM Init and package.json

Dependency Declaration: npm install

The App.js File

Meet Jade: One Template to Rule Them All

Running the Hello World App

Summary

Chapter 3: TDD and BDD for Node.js with Mocha

Installing and Understanding Mocha

Understanding Mocha Hooks

TDD with the Assert

Chai Assert

BDD with Expect.js

Expect.js Syntax

Project: Writing the First BDD Test for Blog

Putting Configs into a Makefile

Summary

Chapter 4: Template Engines: Jade and Handlebars

Jade Syntax and Features

Tags

Variables/Locals

Attributes

Literals

Text

Script and Style Blocks

JavaScript Code

Comments

Conditions (if)

Iterations (each loops)

Filters

Interpolation

Case

Mixins

Include

Extend

Standalone Jade Usage

Handlebars Syntax

Variables

Iteration (each)

Unescaped Output

Conditions (if)

Unless

With

Comments

Custom Helpers

Includes (Partials)

Standalone Handlebars Usage

Jade and Handlebars Usage in Express.js 4

Jade and Express.js

Handlebars and Express.js

Project: Adding Jade Templates to Blog

layout.jade

index.jade

article.jade

login.jade

post.jade

admin.jade

Summary

Chapter 5: Persistence with MongoDB and Mongoskin

Easy and Proper Installation of MongoDB

How to Run the Mongo Server

Data Manipulation from the Mongo Console

MongoDB Shell in Detail

Minimalistic Native MongoDB Driver for Node.js Example

Main Mongoskin Methods

Project: Storing Blog Data in MongoDB with Mongoskin

Project: Adding MongoDB Seed Data

Project: Writing Mocha Tests

Project: Adding Persistence

Running the App

Summary

Chapter 6: Using Sessions and OAuth to Authorize and Authenticate Users in Node.js Apps

Authorization with Express.js Middleware

Token-Based Authentication

Session-Based Authentication

Project: Adding E-mail and Password Login to Blog

Session Middleware

Authorization in Blog

Authentication in Blog

Running the App

Node.js OAuth

Twitter OAuth 2.0 Example with Node.js OAuth

Everyauth

Project: Adding Twitter OAuth 1.0 Sign-in to Blog with Everyauth

Adding a Sign-in with a Twitter Link

Configuring the Everyauth Twitter Strategy

Summary

Chapter 7: Boosting Your Node.js Data with the Mongoose ORM Library

Mongoose Installation

Connection Establishment in a Standalone Mongoose Script

Mongoose Schemas

Hooks for Keeping Code Organized

Custom Static and Instance Methods

Mongoose Models

Relationships and Joins with Population

Nested Documents

Virtual Fields

Schema Type Behavior Amendment

Express.js + Mongoose = True MVC

Summary

Chapter 8: Building Node.js REST API Servers with Express.js and Hapi

RESTful API Basics

Project Dependencies

Test Coverage with Mocha and Superagent

REST API Server Implementation with Express and Mongoskin

Refactoring: Hapi RESP API Server

Summary

Chapter 9: Real-Time Apps with WebSocket, Socket.IO, and DerbyJS

What Is WebSocket?

Native WebSocket and Node.js with the ws Module Example

Browser WebSocket Implementation

Node.js Server with ws Module Implementation

Socket.IO and Express.js Example

Collaborative Online Code Editor Example with DerbyJS, Express.js, and MongoDB

Project Dependencies and package.json

Server-side Code

DerbyJS App

DerbyJS View

Editor Tryout

Summary

Chapter 10: Getting Node.js Apps Production Ready

Environment Variables

Express.js in Production

Socket.IO in Production

Error Handling

Node.js Domains for Error Handling

Multithreading with Cluster

Multithreading with Cluster2

Event Logging and Monitoring

Monitoring

REPL in Production

Winston

Papertrail App for Logging

Building Tasks with Grunt

Git for Version Control and Deployments

Installing Git

Generating SSH Keys

Creating a Local Git Repository

Pushing the Local Repository to GitHub

Running Tests in Cloud with TravisCI

TravisCI Configuration

Summary

Chapter 11: Deploying Node.js Apps

Deploying to Heroku

Deploying to Amazon Web Services

Keeping Node.js Apps Alive with forever, Upstart, and init.d

forever

Upstart Scripts

init.d

Serving Static Resources Properly with Nginx

Caching with Varnish

Summary

Chapter 12: Publishing Node.js Modules and Contributing to Open Source

Recommended Folder Structure

Required Patterns

package.json

Publishing to NPM

Locking Versions

Summary

Practical Node.js Conclusion

Further Reading

Errata and Contacts

Index