Learn how to implement the Publish/Subscribe (Pub/Sub) pattern in Node.js to create a real-time chat application. This tutorial explores the use of a message broker (Redis) to facilitate communication between publishers and subscribers. The server-side implementation involves creating a basic Node.js server, reading and serving an HTML file, and utilizing WebSocket connections. Multiple server instances can be integrated using Redis, enabling seamless chat messaging across servers.
Table of contents
IntroductionPrerequisitesStep 1 - Server Side ImplementationStep 2 - Client Side ImplementationStep 3 - Scaling the ApplicationStep 4 - Redis as a Message BrokerConclusion42 Impressions