Node.js in Action, Second Edition
Alex Young, Bradley Meck, and Mike Cantelon
with Tim Oxley, Marc Harter, T.J. Holowaychuk, and Nathan Rajlich
  • August 2017
  • ISBN 9781617292576
  • 392 pages
  • printed in black & white
free previous edition eBook included
An eBook copy of the previous edition of this book is included at no additional cost. It will be automatically added to your Manning Bookshelf within 24 hours of purchase.

The definitive guide to one of the most important tools of the modern web.

William E. Wheeler, TEKsystems

Node.js in Action, Second Edition is a thoroughly revised book based on the best-selling first edition. It starts at square one and guides you through all the features, techniques, and concepts you'll need to build production-quality Node applications.

About the Technology

You already know JavaScript. The trick to mastering Node.js is learning how to build applications that fully exploit its powerful asynchronous event handling and non-blocking I/O features. The Node server radically simplifies event-driven real-time apps like chat, games, and live data analytics, and with its incredibly rich ecosystem of modules, tools, and libraries, it's hard to beat!

About the book

Based on the bestselling first edition, Node.js in Action, Second Edition is a completely new book. Packed with practical examples, it teaches you how to create high-performance web servers using JavaScript and Node. You'll master key design concepts such as asynchronous programming, state management, and event-driven programming. And you'll learn to put together MVC servers using Express and Connect, design web APIs, and set up the perfect production environment to build, lint, and test.

Table of Contents detailed table of contents

Part 1: Introduction

1. Welcome to Node.js

1.1. A typical Node web application

1.1.1. Non-blocking I/O

1.1.2. The event loop

1.2. ECMAScript 6, Node, and V8

1.2.1. Node and V8

1.2.2. Working with feature groups

1.2.3. Understanding Node’s release schedule

1.3. Installing Node

1.4. Node's built-in tools

1.4.1. npm

1.4.2. The core modules

1.4.3. The debugger

1.5. The three main types of Node program

1.5.1. Web applications

1.5.2. Command-line tools and daemons

1.5.3. Desktop applications

1.5.4. Applications suited to Node

1.6. Summary

2. Node programming fundamentals

2.1. Organizing and reusing Node functionality

2.2. Starting a new Node project

2.2.1. Creating modules

2.3. Fine-tuning module creation using module.exports

2.4. Reusing modules using the node_modules folder

2.5. Caveats

2.6. Asynchronous programming techniques

2.7. Handling one-off events with callbacks

2.8. Handling repeating events with event emitters

2.8.1. An example event emitter

2.8.2. Responding to an event that should occur only once

2.8.3. Creating event emitters: a publish/subscribe example

2.8.4. Extending the event emitter: a file watcher example

2.9. Challenges with asynchronous development

2.10. Sequencing asynchronous logic

2.11. When to use serial flow control

2.12. Implementing serial flow control

2.13. Implementing parallel flow control

2.14. Leveraging community tools

2.15. Summary

3. What is a Node web application?

3.1. A Node web application’s structure

3.1.1. Starting a new project

3.1.2. Comparison with other platforms

3.1.3. What’s next?

3.2. Building a RESTful web service

3.3. Adding a database

3.3.1. Your own model API

3.3.2. Making articles readable and saving them for later

3.4. Adding a user interface

3.4.1. Supporting multiple formats

3.4.2. Rendering templates

3.4.3. Using npm for client-side dependencies

3.5. Summary

Part 2: Building web applications

4. Front-end build systems

4.1. An overview of front-end development with Node

4.2. Using npm to run scripts

4.2.1. Custom npm scripts

4.3. Gulp

4.3.1. Adding Gulp to a project

4.3.2. Creating and running gulp tasks

4.3.3. Watching for changes

4.3.4. Using separate files for larger projects

4.4. Webpack

4.4.1. Bundles and plugins

4.4.2. Configuring and running Webpack

4.4.3. Webpack development server

4.4.4. Loading CommonJS modules and assets

4.4.5. Finding loaders and plugins

4.5. Summary

5. Server—side web frameworks

5.1. Personas

5.1.1. Phil: agency developer

5.1.2. Nadine: open source developer

5.1.3. Alice: product developer

5.2. What is a framework?

5.3. Koa

5.3.1. Setting up

5.3.2. Defining routes

5.3.3. REST APIs

5.3.4. Strengths

5.3.5. Weaknesses

5.4. Kraken

5.4.1. Setting up

5.4.2. Defining routes

5.4.3. REST APIs

5.4.4. Strengths

5.4.5. Weaknesses

5.5. Hapi

5.5.1. Setting up

5.5.2. Defining routes

5.5.3. Plugins

5.5.4. REST APIs

5.5.5. Strengths

5.5.6. Weaknesses

5.6. Sails.js

5.6.1. Setting up

5.6.2. Defining routes

5.6.3. REST APIs

5.6.4. Strengths

5.6.5. Weaknesses

5.7. DerbyJS

5.7.1. Setting up

5.7.2. Defining routes

5.7.3. REST APIs

5.7.4. Strengths

5.7.5. Weaknesses

5.8. Flatiron.js

5.8.1. Setting up

5.8.2. Defining routes

5.8.3. REST APIs

5.8.4. Strengths

5.8.5. Weaknesses

5.9. LoopBack

5.9.1. Setting up

5.9.2. Defining routes

5.9.3. REST APIs

5.9.4. Strengths

5.9.5. Weaknesses

5.10. Comparison

5.10.1. HTTP servers and routes

5.11. Writing modular code

5.12. Persona choices

5.13. Summary

6. Connect and Express in depth

6.1. Connect

6.1.1. Setting up a Connect application

6.1.2. How Connect middleware works

6.1.3. Combining middleware

6.1.4. Middleware ordering

6.1.5. Creating configurable middleware

6.1.6. Using error—handling middleware

6.2. Express

6.2.1. Generating the application skeleton

6.2.2. Configuring Express and your application

6.2.3. Rendering views

6.2.4. Express routing 101

6.2.5. Authenticating users

6.2.6. Registering new users

6.2.7. Logging in registered users

6.2.8. User—loading middleware

6.2.9. Creating a public REST API

6.2.10. Enabling content negotiation

6.3. Summary

7. Web application templating

7.1. Using templating to keep code clean

7.1.1. Templating in action

7.2. Templating with Embedded JavaScript

7.2.1. Creating a template

7.2.2. Integrating EJS into your application

7.2.3. Using EJS for client—side applications

7.3. Using the Mustache templating language with Hogan

7.3.1. Creating a template

7.3.2. Mustache tags

7.3.3. Fine-tuning Hogan

7.4. Templating with Jade

7.4.1. Jade basics

7.4.2. Logic in Jade templates

7.4.3. Organizing Jade templates

7.5. Summary

8. Storing application data

8.1. Relational databases

8.2. PostgreSQL

8.2.1. Installation and setup

8.2.2. Creating the database

8.2.3. Connecting to Postgres from Node

8.2.4. Defining tables

8.2.5. Inserting data

8.2.6. Updating data

8.2.7. Querying data

8.3. Knex

8.3.1. jQuery for databases

8.3.2. Connecting and running queries with Knex

8.3.3. Swapping the database backend

8.3.4. Beware of leaky abstractions

8.4. MySQL vs PostgreSQL

8.5. ACID Guarantees

8.5.1. Atomicity: transactions either succeed or fail in entirety

8.5.2. Consistency: constraints are always enforced

8.5.3. Isolation: concurrent transactions don’t interfere

8.5.4. Durability: transactions are permanent

8.6. NoSQL

8.7. Distributed Databases

8.8. MongoDB

8.8.1. Installation and Setup

8.8.2. Connecting to MongoDB

8.8.3. Inserting documents

8.8.4. Querying

8.8.5. MongoDB identifiers

8.8.6. Replica sets

8.8.7. Write concerns

8.9. Key-value stores

8.10. Redis

8.10.1. Installation and setup

8.10.2. Initialization

8.10.3. Key-value pairs

8.10.4. Keys

8.10.5. Encoding and data types

8.10.6. Hashes

8.10.7. Lists

8.10.8. Sets

8.10.9. Pub-Sub with channels

8.10.10. Redis performance

8.11. Embedded databases

8.12. LevelDB

8.12.1. LevelUP and LevelDOWN

8.12.2. Installation

8.12.3. API overview

8.12.4. Initialization

8.12.5. Key/value encodings

8.12.6. Reading and writing key-value pairs

8.12.7. Pluggable backends

8.12.8. The modular database

8.13. Serialization and deserialization are expensive

8.14. In-browser storage

8.14.1. Web storage: localStorage and sessionStorage

8.14.2. Reading and writing values

8.14.3. localforage

8.14.4. Reading and writing

8.15. Hosted storage

8.15.1. Simple Storage Service (S3)

8.16. Which database?

8.17. Summary

9. Testing Node applications

9.1. Unit testing

9.1.1. The assert module

9.1.2. Mocha

9.1.3. Vows

9.1.4. Chai

9.1.5. Should.js

9.1.6. Spies and stubs with Sinon.JS

9.2. Functional testing

9.2.1. Selenium

9.3. Dealing with failing tests

9.3.1. Getting more detailed logs

9.3.2. Better stacktraces

9.4. Summary

10. Deploying Node applications and maintaining uptime

10.1. Hosting Node applications

10.1.1. Platform as a Service

10.1.2. Servers

10.1.3. Containers

10.2. Deployment basics

10.2.1. Deploying from a Git repository

10.2.2. Keeping Node running

10.3. Maximizing uptime and performance

10.3.1. Maintaining uptime with Upstart

10.3.2. The cluster API: taking advantage of multiple cores

10.3.3. Hosting static files and proxying

10.4. Summary

Part 3: Beyond web development

11. Writing command-line applications

11.1. Conventions and philosophy

11.2. Introducing parse-json

11.3. Command-line arguments

11.3.1. Parsing command-line arguments

11.3.2. Validating arguments

11.3.3. Passing stdin as a file

11.4. Sharing command-line tools with npm

11.5. Connecting scripts with pipes

11.5.1. Piping data into parse-json

11.5.2. Errors and exit codes

11.5.3. Using pipes in Node

11.5.4. Pipes and command execution order

11.6. Interpreting real-world scripts

11.7. Summary

12. Conquering the desktop with Electron

12.1. Introducing Electron

12.1.1. Electron's stack

12.1.2. Interface design

12.2. Creating an Electron app

12.2.1. The remote module

12.3. Building a full desktop application

12.3.1. Bootstrapping React and Babel

12.3.2. Installing the dependencies

12.3.3. Setting up webpack

12.4. The React app

12.4.1. Defining the Request component

12.4.2. Defining the Response component

12.4.3. Communicating between React components

12.5. Builds and distribution

12.5.1. Packaging

12.6. Summary


Appendix A: Installing Node

A.1. Installing Node using an installer

A.1.1. The macOS installer

A.1.2. The Windows installer

A.2. Other ways to install Node

A.2.1. Installing Node from source

A.2.2. Installing Node with a package manager

Appendix B: Automating the web with scraping

B.1. Understanding web scraping

B.1.1. Uses of web scraping

B.1.2. Required tools

B.2. Performing basic web scraping with cheerio

B.3. Handling dynamic content with jsdom

B.4. Making sense of raw data

B.5. Summary

Appendix C: Connect's officially supported middleware

C.1. Middleware for parsing cookies, request bodies, and query strings

C.1.2. Parsing query strings

C.1.3. body-parser: Parse request bodies

C.1.4. compression: Compress outgoing responses

C.2. Middleware that implements core web application functions

C.2.1. morgan: Log requests

C.2.2. serve-favicon: Address bar and bookmark icons

C.2.3. method-override: Fake HTTP methods

C.2.4. vhost: Virtual hosting

C.2.5. express-session: session management

C.3. Middleware that handles web application security

C.3.1. basic-auth: HTTP Basic authentication

C.3.2. csurf: Cross-site request forgery protection

C.3.3. errorhandler: Display errors during development

C.4. Middleware for serving static files

C.4.1. serve-static: Automatically serve files to the browser

C.4.2. serve-index: Generate directory listings

What's inside

  • Mastering non-blocking I/O
  • The Node event loop
  • Testing and deploying
  • Web application templating

About the reader

Written for web developers with intermediate JavaScript skills.

About the authors

The Second Edition author team includes Node masters Alex Young, Bradley Meck, Mike Cantelon, and Tim Oxley, along with original authors Marc Harter, T.J. Holowaychuk, and Nathan Rajlich.

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