Adding minor change and implementing Cloning ability.

src/search_results_handler/aggregation_models.rs

@@ -28,6 +28,7 @@ impl SearchResult {
     }
 }
 
+#[derive(Clone)]
 pub struct RawSearchResult {
     pub title: String,
     pub visiting_url: String,
@@ -52,6 +53,10 @@ impl RawSearchResult {
     pub fn add_engines(&mut self, engine: String) {
         self.engine.push(engine)
     }
+
+    pub fn engine(self) -> String {
+        self.engine.get(0).unwrap().to_string()
+    }
 }
 
 #[derive(Debug, Serialize)]

src/search_results_handler/aggregator.rs

@@ -36,7 +36,7 @@ pub async fn aggregate(
         result_map
             .entry(key)
             .and_modify(|result| {
-                result.add_engines(value.engine[0].clone());
+                result.add_engines(value.clone().engine());
             })
             .or_insert_with(|| -> RawSearchResult {
                 RawSearchResult::new(