<ul><li>Feature flags (also known as feature toggles) allow you to enable or disable functionality without deploying new code.</li><li>This article explains how to implement a feature flag system in Node.js using Redis and Express middleware.</li><li>It provides step-by-step instructions for project setup, Redis client setup, middleware implementation, and usage in routes.</li><li>The article also suggests enhancements like enabling features for specific user IDs or roles, implementing flag variants for A/B testing, creating a dashboard for toggling flags, and using JSON structures in Redis for more complex rules.</li></ul>

Building a Feature Flag System in Node.js with Redis and Middleware

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