diff --git a/server/wheelserver/api/v1/shop/shop.go b/server/wheelserver/api/v1/shop/shop.go
index a534c10c..fdbb94f3 100644
--- a/server/wheelserver/api/v1/shop/shop.go
+++ b/server/wheelserver/api/v1/shop/shop.go
@@ -36,6 +36,13 @@ func (this *ShopApi) Goods(c *gin.Context) {
 }
 
 func (this *ShopApi) Buy(c *gin.Context) {
+	reqJson := struct {
+		ItemId int32  `json:"item_id"`
+	}{}
+	if err := c.ShouldBindJSON(&reqJson); err != nil {
+		f5.RspErr(c, 1, err.Error())
+		return
+	}
 	s := c.MustGet(constant.SESSION_KEY).(common.Session)
 	if s == nil {
 		return