diff --git a/socket_handler.go b/socket_handler.go
index d1b5cee..f61224d 100644
--- a/socket_handler.go
+++ b/socket_handler.go
@@ -9,19 +9,42 @@ import (
 type SocketHandler interface {
 	// Init invoked when server is stated
 	// If you override ths method, must call
+	//
+	// func (sh *SocketHandler) Init() error {
+	// 	if err := sh.SocketHandlers.Init(); nil != err {
+	// 		return err
+	// 	}
+	//  ...
+	// 	return nil
+	// }
 	Init() error
 	// Handshake do handshake client and server
 	// id is identity of client socket. if id is "", disallow connection
 	Handshake(ctx *fasthttp.RequestCtx) (id string, extensionsHeader *fasthttp.ResponseHeader)
 	// OnConnect invoked when client is connected
 	// If you override ths method, must call
+	//
+	// func (sh *SocketHandler) OnConnect(soc *cwf.Socket) {
+	// 	sh.SocketHandlers.OnConnect(soc)
+	//  ...
+	// }
 	OnConnect(soc *Socket)
 	Handle(soc *Socket, stopChan <-chan struct{}, doneChan chan<- struct{})
 	// OnDisconnect invoked when client is disconnected
 	// If you override ths method, must call
+	//
+	// func (sh *SocketHandler) OnDisconnect(soc *cwf.Socket) {
+	//  ...
+	// 	sh.SocketHandlers.OnDisconnect(soc)
+	// }
 	OnDisconnect(soc *Socket)
 	// Destroy invoked when server is stopped
 	// If you override ths method, must call
+	//
+	// func (sh *SocketHandler) Destroy() {
+	//  ...
+	// 	sh.SocketHandlers.Destroy()
+	// }
 	Destroy()
 
 	GetSocket(id string) *Socket
@@ -36,5 +59,10 @@ type SocketHandler interface {
 
 	// Validate is check handler value
 	// If you override ths method, must call
+	//
+	// func (sh *SocketHandlers) Validate() {
+	// 	sh.SocketHandlers.Validate()
+	//  ...
+	// }
 	Validate()
 }