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Comprehensive guide to real-time WebSocket server construction
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Step-by-step lessons on handshake, data, and control frame handling
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Practical debugging, validation, and closure techniques for reliability
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.
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.
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Build an RFC-compliant WebSocket server from scratch
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Validate and configure WebSocket handshake requests
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Parse, unmask, and decode WebSocket data frames efficiently
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Manage WebSocket error handling and graceful closures
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Debug data flows for both small and large WebSocket payloads
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Implement real-time, secure client-server communication