Function rest_config_service_get_env 

async fn rest_config_service_get_env<S>(
    __arg0: State<Arc<S>>,
    headers: HeaderMap,
    __arg2: Query<GetEnvRequest>,
) -> Result<Json<EnvResponse>, RestError>
where
    S: ConfigService + Send + Sync + 'static,

GetEnv - JSON endpoint.

GET /v2/config/env