diff --git a/server/src/controller/todo.rs b/server/src/controller/todo.rs
deleted file mode 100644
index c692447..0000000
--- a/server/src/controller/todo.rs
+++ /dev/null
@@ -1,54 +0,0 @@
-// https://github.com/tokio-rs/axum/discussions/2081
-// use axum::{
-//     async_trait,
-//     extract::{FromRequest, FromRequestParts, Query},
-//     http, response,
-// };
-// use serde::{Deserialize, Serialize};
-// use validator::Validate;
-
-// pub struct Validated<T>(pub T);
-
-// #[async_trait]
-// impl<S, B, T> FromRequest<S, B> for Validated<T>
-// where
-//     S: Send + Sync,
-//     B: Send + 'static,
-//     T: Validate,
-//     Query<T>: FromRequestParts<S>,
-// {
-//     type Rejection = (http::StatusCode, String);
-
-//     async fn from_request(req: http::Request<B>, state: &S) -> Result<Self, Self::Rejection> {
-//         let query = Query::<T>::from_request(req, state).await;
-
-//         if let Ok(Query(data)) = query {
-//             match data.validate() {
-//                 Ok(_) => Ok(Validated(data)),
-//                 Err(err) => Err((http::StatusCode::BAD_REQUEST, err.to_string())),
-//             }
-//         } else {
-//             Err((
-//                 http::StatusCode::INTERNAL_SERVER_ERROR,
-//                 "internal server error".to_string(),
-//             ))
-//         }
-//     }
-// }
-
-// // my handler
-// #[derive(Deserialize, Serialize, Validate)]
-// pub struct Pagination {
-//     #[validate(range(min = 1))]
-//     page: usize,
-
-//     #[validate(range(max = 100))]
-//     per_page: usize,
-// }
-
-// #[axum::debug_handler]
-// pub async fn get_query_string(
-//     Validated(pagination): Validated<Pagination>,
-// ) -> response::Json<Pagination> {
-//     response::Json(pagination)
-// }
\ No newline at end of file