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Home > Web Development > Server Side Web Development > Authentic Node.js WebSocket Server Workshop 2024 for Everyone, No Libraries
Authentic Node.js WebSocket Server Workshop 2024 for Everyone, No Libraries
Authentic Node.js WebSocket Server Workshop 2024 for Everyone, No Libraries

Authentic Node.js WebSocket Server Workshop 2024 for Everyone, No Libraries: Learn to Build Full-Duplex WebSocket Servers in Node.js Without External Libraries for Real-Time

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Can$132.99
Video Nov 2024 8hrs 44mins 1st Edition
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Key benefits

  • Comprehensive guide to real-time WebSocket server construction
  • Step-by-step lessons on handshake, data, and control frame handling
  • Practical debugging, validation, and closure techniques for reliability

Description

Learn how to create a fully functional WebSocket server in Node.js—without using any libraries. Starting with the HTTP handshake upgrade, this course guides you through the step-by-step process of building real-time, two-way communication. You’ll configure an HTTP server, establish WebSocket connections, and ensure compliance with RFC 6455 for universal compatibility. Dive into handling incoming WebSocket data frames and headers. Explore key tasks like extracting bytes, calculating payload lengths, and unmasking data to meet protocol standards. Along the way, you’ll learn practical debugging techniques to manage data payloads and optimize your server for seamless real-time communication. In the final sections, master control frame handling, including ping, pong, and close frames, to gracefully manage WebSocket closures. With a focus on error handling and connection management, this course prepares you to create servers that can tackle real-world demands. By the end, you’ll have the skills to build efficient, full-duplex WebSocket servers in Node.js, ready to support any real-time project—no third-party libraries required.

Who is this book for?

This course is for web developers and Node.js programmers interested in building low-level, high-performance real-time applications using WebSockets. Basic familiarity with WebSockets, JavaScript, and Node.js is recommended.

What you will learn

  • Build an RFC-compliant WebSocket server from scratch
  • Validate and configure WebSocket handshake requests
  • Parse, unmask, and decode WebSocket data frames efficiently
  • Manage WebSocket error handling and graceful closures
  • Debug data flows for both small and large WebSocket payloads
  • Implement real-time, secure client-server communication

Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Nov 19, 2024
Length: 8hrs 44mins
Edition : 1st
Language : English
ISBN-13 : 9781837020591
Category :
Web Development
Concepts :
Server Side Web Development
Tools :
Node.js

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Product Details

Publication date : Nov 19, 2024
Length: 8hrs 44mins
Edition : 1st
Language : English
ISBN-13 : 9781837020591
Category :
Web Development
Concepts :
Server Side Web Development
Tools :
Node.js

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Table of Contents

6 Chapters
Introduction Chevron down icon Chevron up icon
Introduction
To build a WebSocket server, we need to be RFC compliant
Creating a NodeJS Server Chevron down icon Chevron up icon
Overview of HTML and CSS
Setting up our HTTP server
Creating custom modules and finishing off the HTTP server
Implementing basic error handling
Using "Run and Debug" to examine the forEach loop
Testing our error handling code
Establishing a WebSocket Connection Chevron down icon Chevron up icon
Using the 'upgrade' event listener to receive three important objects
Examining the request object in the terminal
Reading the client's opening handshake request headers
Sending a "400 Bad Request" response if the client handshake headers fail
Generate the server response headers object
Extracting the Sec-WebSocket-Key and using the crypto module
Timeout! What is SHA-hashing and the crypto module?
Generate the Sec-WebSocket-Accept value and send back headers to the client
Testing our code and opening up a valid WebSocket connection
Receiving WebSocket Data Chevron down icon Chevron up icon
Setting up our file for the next goal
The socket object inherits from the stream.Duplex class
Defining our data event handler
Quick cut - adding the 'end' event listener to our socket object
Define the processBuffer() function
The WebSocket binary frame structure
Coding the task management looping function
Extract the first 2 bytes of data from the WebSocket data frame
What are Buffers?
Why is the letter "a" sent as 7 bytes?
Using the Debugger tool to analyze code
Extracting the FIN bit
Bitwise operators
Extracting the MASK, OPCODE and initial LENGTH information
Setting up code to extract the payload length details
The 3 categories of payload lengths
Calculating the payload length
Payload length checks
Extract the Masking Key
Define the getPayload() method
Extract one full frame of data (masked)
Unmasking the frame payload
What is the modulus operand?
Create a persistent fragments array and check for more frames (FIN bit check)
SMALL payloads - Using the debugger to analyze logic
Fixing the error in our consumePayload() method
Adding a prepopulate button to the HTML
MEDIUM Payloads - Using the debugger to analyze logic
LARGE Payloads: Part 1 of 3. Understanding getLength() logic
LARGE Payloads: Part 2 of 3. Waiting for additional chunks
LARGE Payloads: Part 3 of 3. Processing the entire payload into _fragments
Improvements, comments, and adding opcode checks
Advanced - chunk size variation between debugger vs live environment
Improving our _getInfo() method
Sending WebSocket Data Chevron down icon Chevron up icon
Getting project files ready to send data to the client
Calculating the size of the variable-length header field
Create the binary frame buffer blueprint
Creating the first byte of the frame
Bitwise shift operators
Populate the frame header with data
Sending the frame to the client
Testing whether the client received the frame
Creating a reset() function
Using debugger tool to examine code
Displaying the WebSocket message on the client-side
Responding to a Closure Frame Chevron down icon Chevron up icon
Setting up project code and defining our mini-goal
Closing handshake
Extracting the body (closure code and reason) of the close frame
Close Frame Structure
Construct the payload buffer for the close frame
Completing and sending the final close frame back to the client
Testing our code
Using Wireshark to master the TCP closure process
Checking for "ping" and "pong" data type, and payloads larger than max size
Extracting the server response from the CloseEvent object
Sending a closure frame if the masking bit is not set correctly by the client
Check whether client has sent a closure code
Displaying default closure message (for normal closure event)
Fixing comments and removing server response text when a new connection is made
Server side validation for text
Fixing the refresh issue killing the server

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About the author

Profile icon SkillZone
SkillZone
In today's rapidly evolving workplace, it is imperative to make sure you have the skills and expertise required to succeed. SkillZone has a simple goal - teaching complicated concepts in an effortless way. They are Johannesburg-based and create quality, easy-to-understand eLearning solutions. They ensure that the learning materials and delivery approach are aligned to meet intended outcomes and address your specific training needs without covering topics that may be unnecessary or irrelevant. Their goal is to help you with in-depth learning whilst avoiding the pitfalls that they discovered the hard way.
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