What is Backend?

What is Backend?

The backend is the part of an application that runs on the server. It handles business logic, database operations, authentication, and sending data to the frontend. Backend developers use languages like Node.js, Python, or Java.

Real-World Example

When you log in, the backend checks if your email and password are correct and returns a token.

Practice

Think about what happens when you send a message in a chat app. The backend stores the message and sends it to the receiver.