Base tree layout
diff --git a/gui/ngXosViews/serviceTopology/src/js/main.js b/gui/ngXosViews/serviceTopology/src/js/main.js
new file mode 100644
index 0000000..1d86d86
--- /dev/null
+++ b/gui/ngXosViews/serviceTopology/src/js/main.js
@@ -0,0 +1,38 @@
+'use strict';
+
+angular.module('xos.serviceTopology', [
+  'ngResource',
+  'ngCookies',
+  'ngLodash',
+  'ui.router',
+  'xos.helpers'
+])
+.config(($stateProvider) => {
+  $stateProvider
+  .state('user-list', {
+    url: '/',
+    template: '<service-canvas></service-canvas>'
+  });
+})
+.config(function($httpProvider){
+  $httpProvider.interceptors.push('NoHyperlinks');
+})
+.directive('usersList', function(){
+  return {
+    restrict: 'E',
+    scope: {},
+    bindToController: true,
+    controllerAs: 'vm',
+    templateUrl: 'templates/users-list.tpl.html',
+    controller: function(Services){
+      // retrieving user list
+      Services.query().$promise
+      .then((res) => {
+        console.log(res);
+      })
+      .catch((e) => {
+        throw new Error(e);
+      });
+    }
+  };
+});
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