added filter and tag for ingredients

main.go

@@ -63,10 +63,25 @@ func main() {
 		}
 	}))
 	http.HandleFunc("/ingredients/", auth.RequireAuth(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "DELETE" {
-			handlers.DeleteIngredientHandler(w, r)
+		path := r.URL.Path
+		if strings.Contains(path, "/tags") {
+			// Ingredient tag routes
+			if r.Method == "GET" {
+				handlers.GetIngredientTagsHandler(w, r)
+			} else if r.Method == "POST" {
+				handlers.AddIngredientTagHandler(w, r)
+			} else if r.Method == "DELETE" {
+				handlers.RemoveIngredientTagHandler(w, r)
+			} else {
+				http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			}
 		} else {
-			http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			// Ingredient delete route
+			if r.Method == "DELETE" {
+				handlers.DeleteIngredientHandler(w, r)
+			} else {
+				http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			}
 		}
 	}))