# withAuthedUser: Require User Authentication in API Routes

> The "withAuthedUser" is a utility function that help you load the authenticated user from the request.

*Canonical: https://makerkit.dev/docs/next-fire/api/withAuthedUser*

---

The `withAuthedUser` function is used to require authentication to access an API endpoint. It will return a `401` error if the user is not authenticated.

```ts {12}
import { NextApiRequest,NextApiResponse } from "next";

import { withAuthedUser } from '~/core/middleware/with-authed-user';
import { withPipe } from '~/core/middleware/with-pipe';
import { withExceptionFilter } from '~/core/middleware/with-exception-filter';

export default function helloWorld(
  req: NextApiRequest,
  res: NextApiResponse
) {
  const handler = withPipe(
    withAuthedUser,
    (req, res) => {
      res.status(200).json({ message: 'Hello World!' });
    }
  );

  return withExceptionFilter(req, res)(handler);
}
```