more optimizations

utils/response_json.go

@@ -0,0 +1,18 @@
+package utils
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+// Helper to write JSON responses
+func RespondWithJSON(w http.ResponseWriter, data any, statusCode int) {
+	jsonData, err := json.Marshal(data)
+	if err != nil {
+		http.Error(w, "failed to marshal JSON", http.StatusInternalServerError)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(statusCode)
+	w.Write(jsonData)
+}