Authenticating users with Replit

You're building a community cookbook web app where users can submit, edit, and browse recipes using Replit. You've just finished the MVP and now you want to restrict access to the recipe editor and admin dashboard so only certain users can make changes.

You write the following prompt in Replit.

Now, we need to gate our admin and form builder pages behind auth. Implement user login with {name-of-feature}

To achieve this, which Replit feature should you use?