http/handler/cow/cow.go

@@ -131,6 +131,7 @@ func BehaviorCurveGroupComparison(c *gin.Context) {
 	if err := valid.ValidateStruct(&req,
 		valid.Field(&req.EarNumber, valid.Required),
 		valid.Field(&req.Days, valid.Required),
+		valid.Field(&req.CurveName, valid.Required),
 	); err != nil {
 		apierr.AbortBadRequest(c, http.StatusBadRequest, err)
 		return