Updated handler package

internal/handler/helper.go

@@ -0,0 +1,15 @@
+package handler
+
+import "encoding/json"
+import "log"
+import "net/http"
+
+// Helper function to send JSON responses
+func RespondWithJSON(w http.ResponseWriter, statusCode int, data interface{}) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(statusCode)
+	if err := json.NewEncoder(w).Encode(data); err != nil {
+		log.Printf("Error encoding JSON: %v", err)
+	}
+}
+