From the Preface

Why Node.js the Right Way?

Way back in March of 2010, I gave a lightning talk titled "Full-Stack JavaScript" at the NoSQL Boston conference. Back then, and even more so now, I knew that using JavaScript for every layer of the application stack was not only possible, but was a great way to reduce software complexity. When each layer of your stack speaks JavaScript, you sidestep impedance mismatches and facilitate code reuse. Node.js is an important piece of the puzzle, filling the middle space between your front-end user-facing code and your data-storage layer. The Right Way in this book's title refers to both the process of learning Node.js and the practice of writing Node.js code.

What’s in This Book

This book is for intermediate to advanced developers who want to learn how to write asynchronous JavaScript for the server using Node.js. Some prior JavaScript experience will definitely help, but you don't have to be an expert.

What This Book Is Not

Before you commit to reading this book, you should know what it doesn't cover.

Everything About Everything. At the time of this writing, npm houses more than 528,000 modules, with a growth rate of more than 500 new modules per day.1 Since the ecosystem and community around Node.js is so large and still growing so rapidly, this book does not attempt to cover everything. Instead, this short book teaches you the essentials you need to get out there and start coding.

In addition to the wealth of Node.js modules available, there's the added complexity of working with non-Node.js services and platforms. Your Node.js code will invariably act as an intermediary between various systems and users both up and down the stack. To tell a cohesive story, we'll naturally only be able to dive deep on a few of these, but always with an eye to the bigger picture.

If you're looking for an opinionated book that focuses only on a particular stack like MEAN (Mongo, Express, Angular, and Node.js), this is not it! Rather than prescribe a particular stack, I'll teach you the skills to put together the Node.js code, no matter which back end you connect to or front end you choose to put on top.

This book also shies away from front-end JavaScript frameworks. The two most popular front-end frameworks at the time of this writing are React, by Facebook,3 and Angular, by Google.4 This book covers neither of them in detail, by design. They both deserve more coverage than fits in these pages. I want you to be the best Node.js coder you can be, whether you use any particular database or front-end framework.

The JavaScript language is probably the most misunderstood language today. Although this book does discuss language syntax from time to time (especially where it's brand-new), this is not a beginner's guide to JavaScript.