NodeJS fetch handling error

node-fetch-err.js

router.post('/endpointname', async function (req, res, next) {
  let bodyObj = { "x":  {} };
  let requestURL = "https://reqres.in/api/register";
  let requestOptions = {
    method: "POST",
    body: JSON.stringify(bodyObj),
    headers: { 'Content-Type': 'application/json' }
  };
  try {
    const apiResponse = await fetch(requestURL, requestOptions);
    let r = checkStatus(apiResponse);
    const json = await r.json()
    res.send(json)
  } catch (err) {
    returnErrorResponse(res, err, "endpointname");
  }
});

var checkStatus = function (response) {
  if (!response.ok) {
    const responseError = {
      statusText: response.statusText,
      status: response.status
    };
    throw (responseError);
  }
  return response;
}

var returnErrorResponse = function (res, err, id) {
  const status = err.status ? err.status : 500;
  const error = err.message ? err.message : (err.statusText ? err.statusText : err);

  _logger.error(`ERROR: ${id}`);
  _logger.error(`ERROR: ${status}-${error}`);

  return res.status(status).send({
    message: `ERROR: ${id}`,
    err: error
  });
}