Api response messages

web/index.php

@@ -22,6 +22,7 @@ $app
             return $app->json([
                 'status' => true,
                 'code' => 201,
+                'message' => 'Resource created.',
             ], 201);
         }
     })
@@ -35,6 +36,7 @@ $app
             return $app->json([
                 'status' => false,
                 'code' => 404,
+                'message' => 'Resource not found.',
             ], 404);
         }
 
@@ -43,6 +45,7 @@ $app
         return $app->json([
             'status' => true,
             'code' => 204,
+            'message' => 'Resource removed.',
         ], 204);
     })
     ->bind('api_sms_delete')
@@ -61,7 +64,7 @@ $app
                 'id' => $object->getId(),
                 'sender' => $object->getSender(),
                 'message' => $object->getMessage(),
-                'received_at' => $object->getTime(),
+                'received_at' => (int) $object->getTime(),
                 'notified_at' => $object->getCreatedAt()->getTimestamp(),
             ];
         }