extractParam = function (param, str, delimiter, quote, endDelimiter) {
  let regex = new RegExp(`${param}${delimiter}\\s*${quote}(.*?)${quote}${endDelimiter}`);
  const found = str.match(regex);
  if (found != null && found.length > 1) {
    return found[1];
  } else {
    return null;
  }
}
Instead of using multer for example to parse the multipart form data, we build our own parser
so that we can verify the content type are set correctly by bruno (for example application/json for json content)