update

cmd/checkout/klarna-handlers.go

@@ -120,6 +120,7 @@ func (s *CheckoutPoolServer) KlarnaValidationHandler(w http.ResponseWriter, r *h
 	err := json.NewDecoder(r.Body).Decode(order)
 	if err != nil {
 		w.WriteHeader(http.StatusBadRequest)
+		return
 	}
 	logger.InfoContext(r.Context(), "Klarna order validation received", "order_id", order.ID, "cart_id", order.MerchantReference1)
 	grain, err := s.getGrainFromKlarnaOrder(r.Context(), order)
@@ -146,6 +147,7 @@ func (s *CheckoutPoolServer) KlarnaNotificationHandler(w http.ResponseWriter, r
 	err := json.NewDecoder(r.Body).Decode(order)
 	if err != nil {
 		w.WriteHeader(http.StatusBadRequest)
+		return
 	}
 	log.Printf("Klarna order notification: %s", order.ID)
 	logger.InfoContext(r.Context(), "Klarna order notification received", "order_id", order.ID)