added hot posts datasource, added respective route, added view_count updating

backend/public/src/routes/posts.rs

@@ -34,6 +34,7 @@ impl PostsRoute {
             .route("/all", get(PostsRoute::get_all))
             .route("/:id", get(PostsRoute::get_one))
             .route("/popular", get(PostsRoute::get_popular_posts))
+            .route("/hot", get(PostsRoute::get_hot_posts))
             .with_state(app_state.db.clone())
     }
 
@@ -65,7 +66,12 @@ impl PostsRoute {
     }
 
     // get the top three posts with the highest view count
-    // async fn get_hot_posts(State(pool): State<PgPool>) {}
+    async fn get_hot_posts(State(pool): State<Pool<Postgres>>) -> impl IntoResponse {
+        match PostsDatasource::get_hot(&pool).await {
+            Ok(posts) => Ok(Json(posts)),
+            Err(e) => Err((StatusCode::INTERNAL_SERVER_ERROR, e.to_string())),
+        }
+    }
 }
 
 fn serialize_datetime<S>(