Hello guys I’m trying to create a middleware in express

function logResponseBody(req, res, next) {
  var oldWrite = res.write,
      oldEnd = res.end;

  const maxSize = 1023;

  var chunks = [];

  res.write = function (chunk) {
    chunks.push(new Buffer(chunk));

    oldWrite.apply(res, arguments);
  };

  res.end = function (chunk) {
    if (chunk)
      chunks.push(new Buffer(chunk));

    var body = Buffer.concat(chunks).toString('utf8');
    console.log(req.path, body);

    if (responseSize > maxSize) {
       // here return a status code 314 and a message the response body is to big
    }

    oldEnd.apply(res, arguments);
  };

  next();
}

app.use(logResponseBody);

What I’m trying to achive is the check if response body is greater than 1mb then return a custom response with error message.
I have a part of the code but when I try to return the response with res.end it gets stuck in the loop