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

Summary


While we came a long way in this chapter, maybe Facebook doesn't have anything to fear from the baby steps we took toward converting the Notes application into a social network. This chapter gave us the opportunity to explore some really cool technology for pseudo real-time communication between browser sessions.

Look up the technical definition for the phrase real time and you'll see the real-time web is not truly real time. The actual meaning of real time involves software with strict time boundaries that must respond to events within a specified time constraint. Real-time software is typically used in embedded systems to respond to button presses, for applications as diverse as junk food dispensers and medical devices in intensive care units. Eat too much junk food and you could end up in intensive care, and be served by real-time software in both cases. Try and remember the distinction between different meanings for this phrase.

In this chapter, you learned about using Socket.IO...