OnConnect not call

[imanborumand]

hi i am add OnConnect to main but not call when user connect to socket
please help me
thanks
gosf.Startup(map[string]interface{}{"port": 9999})
//log.Fatal(http.ListenAndServe(":8081", nil))

gosf.OnConnect(func(client *gosf.Client, request *gosf.Request) {
	log.Println("Client connected.")
})