diff --git a/webapp/controller/ShopController.class.php b/webapp/controller/ShopController.class.php
index 5cbf5db4..7c343de0 100644
--- a/webapp/controller/ShopController.class.php
+++ b/webapp/controller/ShopController.class.php
@@ -1041,6 +1041,8 @@ class ShopController extends BaseAuthedController
             return;
         }
 
+        error_log("buyGoodsDS start " . $address);
+
         $idx = getReqVal('idx', 0);
         $grid = getReqVal('grid', 0);
         $count = getReqVal('count', 0);
@@ -1093,6 +1095,13 @@ class ShopController extends BaseAuthedController
             $item_id,
             $item_count
         );
+        error_log("buyGoodsDS start " + json_encode(array(
+            'idx' => $idx,
+            'grid' => $grid,
+            'count' => $count,
+            'block_chain' => $response,
+        )
+        ));
 
         BcOrder::upsert($response['trans_id'], array(
             'item_id' => $item_id,
@@ -1106,6 +1115,14 @@ class ShopController extends BaseAuthedController
             )),
         ));
 
+        error_log("buyGoodsDS start " + json_encode(array(
+            'idx' => $idx,
+            'grid' => $grid,
+            'count' => $count,
+            'block_chain' => $response,
+        )
+        ));
+
         $this->_rspData(
             array(
                 'idx' => $idx,