What is Basic Auth? With ExpressJS example

Basic auth is a simple HTTP authentication mechanism that uses base64-encoded username and password credentials. It's easy to implement and supported by most modern browsers, making it suitable for small projects or test systems.

However, I wouldn't recommend it as an authentication system for larger production systems that manage users. This is due to its lack of session management, customizable login interface, and efficient user management. For larger and more complex applications, I'd suggest using alternative login mechanisms.