diff --git a/esp8266/datainterface.cpp b/esp8266/datainterface.cpp
index dadf2b09..17309cbb 100644
--- a/esp8266/datainterface.cpp
+++ b/esp8266/datainterface.cpp
@@ -24,8 +24,16 @@
 #include <WiFiServer.h>
 #include <ESP8266WebServer.h>
 
+//cannot put it in class then cast it as std::function<void(void)> so put outside
+void handle_data_interface_root()
+{
+  data_interface.WebServer.send(200, "text/plain", "hello from esp8266 from port 8888 ");
+}
+
 DATAINTERFACE_CLASS::DATAINTERFACE_CLASS (int port):WebServer(port)
 {
+   //init what will handle "/"
+  WebServer.on("/",HTTP_GET, handle_data_interface_root);
 }
 
 DATAINTERFACE_CLASS data_interface(8888);
diff --git a/esp8266/esp8266.ino b/esp8266/esp8266.ino
index 7c1f1f5d..9f5c065b 100644
--- a/esp8266/esp8266.ino
+++ b/esp8266/esp8266.ino
@@ -75,10 +75,6 @@ void setup() {
   //setup wifi according settings
   wifi_config.Setup();
   delay(1000);
-  //define interfaces
-  //TODO move this to class 
-  web_interface.WebServer.on("/", [](){web_interface.WebServer.send(200, "text/plain", "this works as well - port 80");});
-  data_interface.WebServer.on("/", [](){data_interface.WebServer.send(200, "text/plain", "this works as well - port 8888");});
   //start interfaces
   web_interface.WebServer.begin();
   data_interface.WebServer.begin();
diff --git a/esp8266/webinterface.cpp b/esp8266/webinterface.cpp
index 1c1314a3..06c815c6 100644
--- a/esp8266/webinterface.cpp
+++ b/esp8266/webinterface.cpp
@@ -24,8 +24,16 @@
 #include <WiFiServer.h>
 #include <ESP8266WebServer.h>
 
+//cannot put it in class then cast it as std::function<void(void)> so put outside
+void handle_web_interface_root()
+{
+  web_interface.WebServer.send(200, "text/plain", "hello from esp8266 from port 80!");
+}
+
 WEBINTERFACE_CLASS::WEBINTERFACE_CLASS (int port):WebServer(port)
 {
+  //init what will handle "/"
+  WebServer.on("/",HTTP_GET, handle_web_interface_root);
 }
 
 WEBINTERFACE_CLASS web_interface(80);