Caching would make http-server-rs more efficient. For info about this feature in Actix web, see [Constant actix_web::http::header::IF_NONE_MATCH](https://actix.rs/actix-web/actix_web/http/header/constant.IF_NONE_MATCH.html), and also [using md5 for Etag caching](https://www.drupal.org/project/drupal/issues/1869338#resources) for some more general info.
Caching would make http-server-rs more efficient. For info about this feature in Actix web, see Constant actix_web::http::header::IF_NONE_MATCH, and also using md5 for Etag caching for some more general info.