Book Image

Mastering Node.js - Second Edition

By : Sandro Pasquali, Kevin Faaborg
Book Image

Mastering Node.js - Second Edition

By: Sandro Pasquali, Kevin Faaborg

Overview of this book

Node.js, a modern development environment that enables developers to write server- and client-side code with JavaScript, thus becoming a popular choice among developers. This book covers the features of Node that are especially helpful to developers creating highly concurrent real-time applications. It takes you on a tour of Node's innovative event non-blocking design, showing you how to build professional applications. This edition has been updated to cover the latest features of Node 9 and ES6. All code examples and demo applications have been completely rewritten using the latest techniques, introducing Promises, functional programming, async/await, and other cutting-edge patterns for writing JavaScript code. Learn how to use microservices to simplify the design and composition of distributed systems. From building serverless cloud functions to native C++ plugins, from chatbots to massively scalable SMS-driven applications, you'll be prepared for building the next generation of distributed software. By the end of this book, you'll be building better Node applications more quickly, with less code and more power, and know how to run them at scale in production environments.
Table of Contents (13 chapters)

Real-time activity updates of multiple worker results

Using what we've learned, we will construct a multiprocess system to track the behavior of all visitors to a sample web page. This will be composed of two main segments: a WebSocket-powered client library, which will broadcast each time a user moves a mouse, and an administration interface visualizing user interaction as well as when a user connects and disconnects from the system. Our goal is to show how a more complex system might be designed (such as one that tracks and graphs every click, swipe, or other interactions a user might make).

The final administration interface will show activity graphs for several users and resemble this:

As this system will be tracking the X and Y positions of each mouse motion made by all users, we will spread this continuous stream of data across all available machine cores using cluster...