Book Image

Node.js Web Development. - Fourth Edition

By : David Herron
Book Image

Node.js Web Development. - Fourth Edition

By: David Herron

Overview of this book

Node.js is a server-side JavaScript platform using an event-driven, non-blocking I/O model allowing users to build fast and scalable data-intensive applications running in real time. This book gives you an excellent starting point, bringing you straight to the heart of developing web applications with Node.js. You will progress from a rudimentary knowledge of JavaScript and server-side development to being able to create, maintain, deploy and test your own Node.js application.You will understand the importance of transitioning to functions that return Promise objects, and the difference between fs, fs/promises and fs-extra. With this book you'll learn how to use the HTTP Server and Client objects, data storage with both SQL and MongoDB databases, real-time applications with Socket.IO, mobile-first theming with Bootstrap, microservice deployment with Docker, authenticating against third-party services using OAuth, and use some well known tools to beef up security of Express 4.16 applications.
Table of Contents (19 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

NPM – the Node.js package manager


Node.js by itself is a pretty basic system, being a JavaScript interpreter with a few interesting asynchronous I/O libraries. One of the things that makes Node.js interesting is the rapidly growing ecosystem of third-party modules for Node.js.

At the center of that ecosystem is NPM. While Node.js modules can be downloaded as source and assembled manually for use with Node.js programs, that's tedious and it's difficult to implement a repeatable build process. NPM gives us a simpler way; NPM is the de facto standard package manager for Node.js and it greatly simplifies downloading and using these modules. We will talk about NPM at length in the next chapter.

The sharp-eyed will have noticed that npm is already installed via all the installation methods discussed previously. In the past, npm was installed separately, but today it is bundled with Node.js.

Now that we have npm installed, let's take it for a quick spin. The hexy program is a utility for printing...