Implemented a baisc user checker/getter

ref #100

src/app.ts

@@ -5,10 +5,12 @@ import { config, e as errors } from './config';
 import loaders from "./loaders/index";
 import authchecker from "./middlewares/authchecker";
 import { ErrorHandler } from './middlewares/ErrorHandler';
+import UserChecker from './middlewares/UserChecker';
 
 const CONTROLLERS_FILE_EXTENSION = process.env.NODE_ENV === 'production' ? 'js' : 'ts';
 const app = createExpressServer({
   authorizationChecker: authchecker,
+  currentUserChecker: UserChecker,
   middlewares: [ErrorHandler],
   development: config.development,
   cors: true,