Here is a complete, ready-to-publish blog on “Role-Based Authentication and Access Control in MERN” — clean, structured, SEO-friendly, and technically accurate. ⭐ Role-Based Authentication and Access Control in MERN (MongoDB, Express, React, Node.js) Modern web applications require more than just login and signup. They must ensure that only authorized users can perform specific actions. This is where Role-Based Access Control (RBAC) becomes essential. In a MERN stack application, RBAC ensures that different users (like Admin, Instructor, Student ) have different permissions. For example: Admin → can manage users, settings, and all resources Instructor → can create and update course content Student → can view enrolled courses only In this blog, we’ll break down how RBAC works and how you can implement it in your MERN application . 🔐 What is Role-Based Access Control (RBAC)? RBAC is a method of restricting access based on user roles . Every user is assign...