async function logException(message, payload, req) {
  return new Promise(function (resolve, reject) {
    const ip = req.headers['x-forwarded-for'] ||
      req.connection.remoteAddress ||
      req.socket.remoteAddress ||
      req.connection.socket.remoteAddress;
    const sql = 'insert into log set ?';
    const inserts = {
      logCreated: new Date(),
      logMessage: message,
      logPayload: payload,
      logIP: ip,
      logUserAgent: req.get('user-agent')
    }
    dbQ(sql, inserts, function (error, results, fields) {
      if (error) resolve(error.message);
      else resolve(results);
    });
  });
}