fix parameter unmarshal

internal/storage/badger/goodsitem.go

@@ -31,7 +31,7 @@ func newGoodsItemClient(db *badger.DB, serializeAsJSON bool) *goodsItemClient {
 		s = goodsItemJSONSerializer{}
 	} else {
 		s = goodsItemFlatbufSerializer{}
-	}
+
 	return &goodsItemClient{
 		db: db,
 		s:  s,
@@ -313,7 +313,12 @@ type itemSerializer[T any] interface {
 type goodsItemJSONSerializer struct{}
 
 func (goodsItemJSONSerializer) Serialize(in entity.GoodsItem) ([]byte, error) {
-	return json.Marshal(in)
+	data, err :=  json.Marshal(in)
+	if err != nil {
+	return nil, fmt.Errorf("marshalling data: %w", err)
+	}
+
+	return data, nil
 }
 
 func (goodsItemJSONSerializer) Deserialize(data []byte) (in entity.GoodsItem, err error) {