func fibRequest(req *G.Request, resp *G.Message) {
pack := map[string]float64{}
req.Data(&pack)
next := pack["first"] + pack["second"]
fmt.Printf("First %.0f Second %.0f Next %.0f \n",
pack["first"], pack["second"], next)
resp.SetData(next)
}
func echoReply(req *G.Request, resp *G.Message) {
var msg string
req.Data(&msg)
fmt.Println("Echoserver: received", msg)
resp.SetData(fmt.Sprintf("Pong %v", msg))
}