[15] Refactor code - Ecommerce Tutorial using MERN Stack

[4] Setup navbar - Ecommerce Tutorial using MERN Stack

[5] Add routing functionality to navbar - Ecommerce Tutorial using MERN Stack

[6] Add Signup component UI - Ecommerce Tutorial using MERN Stack

[7] Add Signup component state and event handlers - Ecommerce Tutorial using MERN Stack

[8] Add Signup component validation, messages and loading - Ecommerce Tutorial using MERN Stack

[9] Make HTTP request for signup API using Axios - Ecommerce Tutorial using MERN Stack

[10] Setup CORS, Morgan and Concurrently - Ecommerce Tutorial using MERN Stack

[11] Setup signup route for API - Ecommerce Tutorial using MERN Stack

[12] Setup middleware for signup route - Ecommerce Tutorial using MERN Stack

[13] Create User model for database - Ecommerce Tutorial using MERN Stack

[14] Create controller for signup route - Ecommerce Tutorial using MERN Stack

[15] Refactor code - Ecommerce Tutorial using MERN Stack