Express Logger Stuff

app.use(beforeControllersMiddlewares)

useExpressServer(app, {
  routePrefix: '/api',
  controllers: [`${__dirname}/controllers/*.ts`],
});

app.use(afterControllersMiddlewares);

function afterControllersMiddlewares(err, req, res, next) {
  if (err) {
    // general error handler
    
    if (err instanceof MyError) {
      res.status(err.httpCode).json({
        code: err.verboseCode,
        mesage: err.message,
      });
    } else {
      res.status(500).json({
        code: 'INTERNAL_SERVER_ERROR,
        mesage: `Something went wrong: ${err.message}`,
      });
    }
  }
}

Some Controller

class MyError extends Error { // extends Error could works not so well
  public httpCode: number;
  puclic verboseCode: string;
  
  constructor(httpCode, verboseCode, message) {
    super(message);
    this.httpCode = httpCode;
    this.verboseCode = verboseCode;
  }
}

controller(@Req() request: Request, @Res() response: Response) {
  ...
  throw new MyError(401, 'UNAUTHENTICATED', 'Invalid username or password');
  ...
}