Learn to implement MERN Stack Authentication and Authorization using JWT Access & Refresh Tokens and secure cookies in this comprehensive video tutorial. Explore the creation of auth routes and an auth controller for a REST API that handles authentication and issues JWT tokens for valid users. Dive into topics such as rate limiting middleware, understanding the JWT auth process, creating token secrets with Node.js, and implementing login, refresh, and logout methods in the auth controller. Follow along as the instructor demonstrates how to create middleware to verify JWTs, apply it to routes, and test various endpoints using Postman. Gain valuable insights into building secure and robust authentication systems for your MERN stack applications.