docs: function expressRequestInformationExtractor(req, res) {
  
    var returnObject = new RequestInformationContainer();
  
    if (!isObject(req) || !isFunction(req.header) || !isObject(res)) {
  
      return returnObject;
    }
  
    returnObject.setMethod(req.method)
        .setUrl(req.url)
        .setUserAgent(req.header('user-agent'))
        .setReferrer(req.header('referrer'))
        .setStatusCode(res.statusCode)
        .setRemoteAddress(extractRemoteAddressFromRequest(req));
  
    return returnObject;
  }