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Mastering  Node.js

You're reading from   Mastering Node.js Build robust and scalable real-time server-side web applications efficiently

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781785888960
Length 498 pages
Edition 2nd Edition
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Authors (2):
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Sandro Pasquali Sandro Pasquali
Author Profile Icon Sandro Pasquali
Sandro Pasquali
Kevin Faaborg Kevin Faaborg
Author Profile Icon Kevin Faaborg
Kevin Faaborg
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Table of Contents (13) Chapters Close

Preface 1. Understanding the Node Environment FREE CHAPTER 2. Understanding Asynchronous Event-Driven Programming 3. Streaming Data Across Nodes and Clients 4. Using Node to Access the Filesystem 5. Managing Many Simultaneous Client Connections 6. Creating Real-Time Applications 7. Using Multiple Processes 8. Scaling Your Application 9. Microservices 10. Testing Your Application 11. Organizing Your Work into Modules 12. Creating Your Own C++ Add-ons

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...

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