remove reponse

index.js

@@ -28,7 +28,7 @@ app.post('/post', function(req, res){
   request(parsed_url, function (error, response, body) {
     if (!error && response.statusCode == 200) {
       var data = JSON.parse(body);
-      var first_url = data.response.current_observation.station_id;
+      var first_url = data.current_observation.station_id;
 
       var body = {
         response_type: "in_channel",