implemented get events by categories

www/js/categories.js

@@ -0,0 +1,17 @@
+angular.module('app.categories', ['pascalprecht.translate'])
+
+.controller('CategoriesCtrl', function($scope, $http, $ionicModal, $timeout, $ionicLoading, $filter) {
+
+
+    $scope.categories;
+    $http.get(urlapi + 'categoriesList')
+    .then(function(data){
+        $scope.categories=data.data;
+        console.log($scope.categories);
+    }, function(data){
+        console.log('data error');
+        console.log(data);
+        $ionicLoading.show({ template: 'Error connecting server', noBackdrop: true, duration: 2000 });
+
+    });
+});