nowcoder signature generator

nowcoder.js

import crypto from 'crypto';

import request from 'request';
import Promise from 'bluebird';


Promise.promisifyAll(request);

/**
* format object to key=value&key1=value1 string.
*
* @param  {Object} params - params object.
* @return {String} string
*/
function stringUtil(params) {
  const stringArray = [];
  for (const i in params) {
    stringArray.push(encodeURI(i) + '=' + encodeURI(params[i]));
  }
  return stringArray.join('&');
}

/**
 * niuke signature generator
 *
 * @param  {String} apiSecret - api secret key
 * @return {Object} sinature - signature string
 */
function niukeSignatureGenerator(params, apiSecret) {
  const stringArray = [];
  for (const i in params) {
    stringArray.push(encodeURI(i) + '=' + encodeURI(params[i]));
  }
  let _string = stringArray.join('&');
  _string += apiSecret;
  return crypto.createHash('md5').update(_string).digest('hex');
}


const apiKey = '';
const apiSecret = '';

const params = {
  api_key: apiKey,
  path: '/users/self',
  timestamp: Math.floor(Date.now() / 1000),
};
const signature = niukeSignatureGenerator(params, apiSecret);
params.sign = signature;
const paramString = stringUtil(params);

request.getAsync({
  uri: 'http://d.api.nowcoder.com/v1' + '/users/self' + '?' + paramString,
})
.spread((res, body) => {
  console.log(res.statusCode, body);
});