forward_auth / reverse_proxy php_server as upstream

[athopen]

Hey 👋🏻

I am developing an application where each request to / needs to be validated against a PHP backend before serving the Node.js PWA. My current approach is to implement a reverse_proxy directive that communicates with the PHP backend, returning a 200 status code on success or redirecting to a different URL in case of failure.

{$SERVER_NAME:localhost} {
   ....

    reverse_proxy / localhost:80 {
	rewrite /verify

	@good_response status 2xx
	handle_response @good_response
    }

    @pwa expression `....`

    reverse_proxy @pwa http://{$PWA_UPSTREAM}
   
    php_server
}

With this implementation, Caddy would "call itself" for each request to /. Isn't there a more efficient way to handle this?

I considered using something like reverse_proxy / php_server, but it doesn't seem to work.

[AlliBalliBaba]

I don't know if I fully understood what you're trying to achieve, but couldn't you do something like this instead?

{$SERVER_NAME:localhost} {
    ....

    handle / {
        rewrite /verify
        php_server
    }
 
    ....
}