fix

server/shopping-cart/internal/handler/routes.go

@@ -32,6 +32,11 @@ func RegisterHandlers(server *rest.Server, serverCtx *svc.ServiceContext) {
 				Path:    "/api/shopping-cart/calculate_cart_price",
 				Handler: CalculateCartPriceHandler(serverCtx),
 			},
+			{
+				Method:  http.MethodGet,
+				Path:    "/api/shopping-cart/get_cart_num",
+				Handler: GetCartNumHandler(serverCtx),
+			},
 		},
 	)
 }

server/shopping-cart/internal/types/types.go

@@ -114,6 +114,10 @@ type CalculateResultItem struct {
 	TotalPrice string `json:"total_price"` //总价
 }
 
+type GetCartNumRsp struct {
+	TotalCount int64 `json:"total_count"`
+}
+
 type Request struct {
 }