Fanout
Distributes incoming messages or tasks to multiple workers or queues for parallel processing. Widely used in data pipelines and event-driven architectures.
Fanout: One Write, Many Readers
Broadcasting a single event to many consumers efficiently.
Fanout in Production: Feeds and Event Buses
Timeline fanout, Kafka partitions, and broadcast at scale.
Advanced Fanout: Hybrid and Adaptive Fanout
Hybrid push/pull, adaptive fanout, and fanout at internet scale.
Fanout: Review & Mastery Quiz
Scenario questions on push/pull, partitions, and hybrids.
Free Books & Guides
Refactoring.Guru — Fanout
The definitive modern guide to the Fanout pattern. Clear explanations, UML diagrams, real-world analogies, and code examples in multiple languages.
SourceMaking — Fanout
A comprehensive companion guide covering the Fanout pattern with detailed rules of thumb, criticisms, and robust code snippets.
GoF Design Patterns — Fanout
The original Gang of Four book describing the pattern. Available in the "Design Patterns: Elements of Reusable Object-Oriented Software" on Wikipedia.
Official Documentation
Video Courses
freeCodeCamp — Design Patterns Course
A comprehensive multi-hour video course covering all major design patterns with implementations in JavaScript and TypeScript.
Design Patterns in Modern JavaScript Playlist
YouTube playlist covering creational, structural, and behavioral patterns with clear code walkthroughs.
Web Dev Simplified — Fanout
Clear, concise video tutorials covering design patterns with practical examples.
Practice & Examples
Awesome Low-Level Design (GitHub)
A curated collection of free LLD resources, pattern implementations, and interview problems across multiple languages.
Design Patterns Implementation (GitHub)
The most popular open-source collection of design pattern implementations with detailed explanations.
Refactoring.Guru Examples in Fanout
Code examples of the Fanout pattern in TypeScript, Python, Java, and more.