loop on discovery

tools/api.go

@@ -61,9 +61,13 @@ func (s State) String() string {
 type API struct{}
 
 func (a *API) Discovered(infos []*beego.ControllerInfo) {
-	respondToDiscovery := func(m NATSResponse) {
+	respondToDiscovery := func(resp NATSResponse) {
+		var m map[string]interface{}
+		json.Unmarshal(resp.Payload, &m)
+		if len(m) == 0 {
 			a.SubscribeRouter(infos)
 		}
+	}
 	a.ListenRouter(respondToDiscovery)
 	a.SubscribeRouter(infos)
 }