Update key service to use (err, data) callbacks

app/public/services/KeySvc.js

@@ -1,37 +1,40 @@
 var angular = require('angular');
 
-angular.module('KeySvc', []).service('KeyService', ['$http', function ($http) {
-    this.getAllKeys = function (cb) {
+angular.module('KeySvc', []).service('KeyService', ['$http', function($http) {
+    this.createKey = (identifier, scope, cb) =>
         $http({
-            method: 'GET',
-            url: '/api/keys/get'
-        }).then(function (res) {
-            cb(res.data);
+            method: 'POST',
+            url: '/api/keys/create',
+            data: {
+                identifier: identifier,
+                scope: scope
+            }
+        }).then(res => {
+            cb(null, res.data)
+        }).catch(err => {
+            cb(err);
         });
-    };
 
-    this.deleteKey = function (key, cb) {
+    this.deleteKey = (key, cb) =>
         $http({
             method: 'POST',
             url: '/api/keys/delete',
             data: {
                 key: key
             }
-        }).then(function (res) {
-            cb(res.data);
+        }).then(res => {
+            cb(null, res.data);
+        }).catch(err => {
+            cb(err);
         });
-    };
 
-    this.createKey = function (identifier, scope, cb) {
+    this.getAllKeys = cb =>
         $http({
-            method: 'POST',
-            url: '/api/keys/create',
-            data: {
-                identifier: identifier,
-                scope: scope
-            }
-        }).then(function(res) {
-            cb(res.data);
+            method: 'GET',
+            url: '/api/keys/get'
+        }).then(res => {
+            cb(null, res.data);
+        }).catch(err => {
+            cb(err);
         });
-    };
 }]);