diff --git a/middleware/define.go b/middleware/define.go
new file mode 100644
index 0000000..c93eb35
--- /dev/null
+++ b/middleware/define.go
@@ -0,0 +1,6 @@
+package middleware
+
+type MiddlewareInterface interface {
+	Init()
+	Exet(interface{}) (interface{}, error)
+}