Fixed leaderboard display error caused by wrond DTO field names in backend

crates/knowfoolery-server/src/dto/responses.rs

@@ -87,6 +87,32 @@ pub struct StartSessionResponse {
     pub question: QuestionResponse,
 }
 
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct LeaderboardResponse {
+    pub rank: i32,
+    pub player_name: String,
+    pub score: i32,
+    pub questions_answered: i32,
+    pub correct_answers: i32,
+    pub success_rate: f64,
+    pub duration_seconds: i64,
+}
+
+impl From<LeaderboardEntry> for LeaderboardResponse {
+    fn from(entry: LeaderboardEntry) -> Self {
+        Self {
+            rank: entry.rank,
+            player_name: entry.player_name,
+            score: entry.score,
+            questions_answered: entry.questions_answered,
+            correct_answers: entry.correct_answers,
+            success_rate: entry.success_rate,
+            duration_seconds: entry.duration_seconds,
+        }
+    }
+}
+
 #[derive(Debug, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct AdminQuestionResponse {

crates/knowfoolery-server/src/handlers/leaderboard.rs

@@ -1,13 +1,13 @@
 use axum::{extract::State, Json};
 
 use crate::app_state::AppState;
+use crate::dto::responses::LeaderboardResponse;
 use crate::error::ApiError;
 use crate::services::game_service::GameService;
-use knowfoolery_shared::models::LeaderboardEntry;
 
 pub async fn get_leaderboard(
     State(state): State<AppState>,
-) -> Result<Json<Vec<LeaderboardEntry>>, ApiError> {
+) -> Result<Json<Vec<LeaderboardResponse>>, ApiError> {
     let svc = GameService::new(
         state.session_repo.clone(),
         state.session_question_repo.clone(),
@@ -15,5 +15,6 @@ pub async fn get_leaderboard(
         state.leaderboard_repo.clone(),
     );
     let entries = svc.get_leaderboard().await?;
-    Ok(Json(entries))
+    let response = entries.into_iter().map(LeaderboardResponse::from).collect();
+    Ok(Json(response))
 }