Merge develop into master

Closes #10 (closed), #13 (closed)

app/api/group/delete.js

 'use strict'
 
-const groupService = require('../../dal/groupService')
-
-const logger = require('../../utils/format')
-const util = require('util')
+const groupService = require('../../dal/groupService');
+const logger = require('../../utils/logger');
 
 const Group = {
     async deleteGroup(ctx) {
         try {
-            ctx.body = await groupService.deleteGroup(ctx.request.body)
-            ctx.status = 201
-            logger.info('group is deleted successfully!')
+            ctx.body = await groupService.deleteGroup(ctx.request.body);
+            ctx.status = 201;
+            logger.info('Group deleted.');
         } catch (error) {
-            ctx.body = error.response || 'erroror occurred!'
-            ctx.status = 500
-            logger.error(`Caught error: ${JSON.stringify(util.inspect(error, { compact: false, depth: 1, breakLength: 80 }))}`)
+            throw error;
         }
     },
 
     async deleteGroupPolicy(ctx) {
         try {
-            ctx.body = await groupService.deleteGroupPolicy(ctx.request.body)
-            ctx.status = 201
-            logger.info('GroupPolicy is deleted successfully!')
+            ctx.body = await groupService.deleteGroupPolicy(ctx.request.body);
+            ctx.status = 201;
+            logger.info('Group policy deleted.');
         } catch (error) {
-            ctx.body = error.response || 'erroror occurred!'
-            ctx.status = 500
-            logger.error(`Caught error: ${JSON.stringify(util.inspect(error, { compact: false, depth: 1, breakLength: 80 }))}`)
+            throw error;
         }
     },
 
     async deleteGroupUser(ctx) {
         try {
-            ctx.body = await groupService.deleteGroupUser(ctx.request.body)
-            ctx.status = 201
-            logger.info('GroupUser is deleted successfully!')
+            ctx.body = await groupService.deleteGroupUser(ctx.request.body);
+            ctx.status = 201;
+            logger.info('Group user deleted.');
         } catch (error) {
-            ctx.body = error.response || 'erroror occurred!'
-            ctx.status = 500
-            logger.error(`Caught error: ${JSON.stringify(util.inspect(error, { compact: false, depth: 1, breakLength: 80 }))}`)
+            throw error;
         }
     },
-}
-
+};
 
 module.exports = {
-    deleteGroup : Group.deleteGroup, 
+    deleteGroup : Group.deleteGroup,
     deleteGroupPolicy: Group.deleteGroupPolicy,
     deleteGroupUser: Group.deleteGroupUser
-}
\ No newline at end of file
+};