Macro admin_api_endpoint 

macro_rules! admin_api_endpoint {
    (
        $path:expr_2021,
        $version_introduced:expr_2021,
        async |$state:ident: &$state_ty:ty, $context:ident, $auth:ident, $param:ident: $param_ty:ty| -> $resp_ty:ty $body:block
    ) => { ... };
    (
        $path:expr_2021,
        $version_introduced:expr_2021,
        async |$state:ident: &$state_ty:ty, $context:ident, $param:ident: $param_ty:ty| -> $resp_ty:ty $body:block
    ) => { ... };
}

Declares an API endpoint that verifies guardian authentication before entering the handler body.

An optional token argument between the context and request binds the verified GuardianAuthToken for handlers that pass the proof of authentication to privileged inner functions.