# Pastebin 2m6xdULK
class Auth does Cro::HTTP::Middleware::Conditional {
    method process(Supply $requests) {
        supply whenever $requests -> $request {
            my %body = await $request.body;
            my $user = User.^load(uuid => %body<auth>);
            if $user {
                emit $request;
            }
            else {
                note "[{ DateTime.now }] Failed authentication from {$request.connection.peer-host} (Auth: {%body<auth>})";
                emit Cro::HTTP::Response.new(:$request, :403status);
            }
        }
    }
}

my $application = route {
    before Auth;
    get -> 'character', $id {
        request-body -> %request {
            my $character = Character.^load($id);
            note "[{ DateTime.now }] Performing lookup on $id";
            if $character {
                content 'application/json', $character.to-json;
            } else {
                not-found;
            }
        }
    }
}