Can I use Caddy to provide a single point of authentication for multiple apps when acting as a reverse proxy? So a request to a protected resource needs to be

Can I use Caddy to provide a single point of authentication for multiple apps when acting as a reverse proxy? So a request to a protected resource needs to be authenticated if not then redirect to a URL (login form). If login is successful then a token is provided which can be used for authentication. If a request is authenticated successfully then it can proxy to the resource.