Here the code base of a TodoList App, Which uses ReactJS in Front End and MongoDB, Express JS and Node JS in Back end. Some Key Features explored here is Authorization, Authentication, Protected Routes etc.
Checkout the front end code base here :
Frontend of MERN app. Contribute to aravishack/MERNapp-frontend development by creating an account on GitHub.
Checkout the back end code base here:
Backend of MERN app. Contribute to aravishack/MERNapp-backend development by creating an account on GitHub.
Comment if you have any queries on recreating the applications and any issues while installing the packages.