background scan

src/main.rs

@@ -49,9 +49,11 @@ async fn launch() -> _ {
 
     let library = lib.clone();
 
+    let handle = tokio::spawn(async move {
         library
             .scan_dir(&Path::new(&dir_path.clone()).to_path_buf())
             .await;
+    });
 
     let cors = rocket_cors::CorsOptions {
         allowed_origins: rocket_cors::AllowedOrigins::all(),