import md5 from 'md5';

//calcSn for server
var req = request
console.log(req.body);
if (req.body) {
  let bodyObj = JSON.parse(req.body);
  bodyObj['header']['token'] = req['headers']['token'];
  bodyObj['header']['snTime'] = (new Date()).valueOf();

  let allData = Object.assign(JSON.parse(JSON.stringify(bodyObj['body'])), {
    token: bodyObj['header']['token'],
    snTime: bodyObj['header']['snTime']
  });
  bodyObj['header']['sn'] = calcSn(allData);
  req.body = JSON.stringify(bodyObj);
  req.headers['X-Sn-Verify'] = md5(req.body);
}
console.log(req.body);

function calcSn(allData) {
  let queryString = "";
  Object.keys(allData)
    .sort()
    .forEach(function (key, i) {
      let value = allData[key];
      queryString += key + "=" + value + "&";
    });
  if (queryString.length > 0) {
    queryString = queryString.substring(0, queryString.length - 1)
  }
  return md5(queryString);
}