diff --git a/container/container.go b/container/container.go
index 1982018..45e0cb9 100644
--- a/container/container.go
+++ b/container/container.go
@@ -24,6 +24,7 @@ func init() {
 		go func() {
 			<-ctx.Done()
 			Close()
+			cancel()
 		}()
 		Cancel = cancel
 		return ctx
diff --git a/contracts/http.go b/contracts/http.go
new file mode 100644
index 0000000..8c40d63
--- /dev/null
+++ b/contracts/http.go
@@ -0,0 +1,8 @@
+package contracts
+
+type Route interface{}
+
+type HttpService interface {
+	Serve() error
+	GetEngine() interface{}
+}
diff --git a/contracts/micro.go b/contracts/micro.go
new file mode 100644
index 0000000..8d492b0
--- /dev/null
+++ b/contracts/micro.go
@@ -0,0 +1,6 @@
+package contracts
+
+type MicroService interface {
+	Serve() error
+	GetEngine() any
+}