node app.js

    Create a new user: Send a POST request to /api/users with the following body:

{
  "name": "John Doe",
  "email": "johndoe@example.com",
  "password": "password123"
}

Get all users: Send a GET request to /api/users.

Access protected route: Send a GET request to /api/protected with the Authorization header set to valid-token.

Model: userModel.js (defines the structure of the User).
View: In this case, since we are building an API, the "view" part isn't needed. If you're building a full application with frontend, it would be handled in the client-side code.
Controller: userController.js (handles the business logic for creating and retrieving users).
Middleware: authMiddleware.js (used to authenticate requests).