service/test/demo.js

'use strict';
const WXBizDataCrypt = require('./WXBizDataCrypt');

const appId = 'wx4f4bc4dec97d474b';
const sessionKey = 'tiihtNczf5v6AKRyjwEUhQ==';
const encryptedData =
	'CiyLU1Aw2KjvrjMdj8YKliAjtP4gsMZM' +
	'QmRzooG2xrDcvSnxIMXFufNstNGTyaGS' +
	'9uT5geRa0W4oTOb1WT7fJlAC+oNPdbB+' +
	'3hVbJSRgv+4lGOETKUQz6OYStslQ142d' +
	'NCuabNPGBzlooOmB231qMM85d2/fV6Ch' +
	'evvXvQP8Hkue1poOFtnEtpyxVLW1zAo6' +
	'/1Xx1COxFvrc2d7UL/lmHInNlxuacJXw' +
	'u0fjpXfz/YqYzBIBzD6WUfTIF9GRHpOn' +
	'/Hz7saL8xz+W//FRAUid1OksQaQx4CMs' +
	'8LOddcQhULW4ucetDf96JcR3g0gfRK4P' +
	'C7E/r7Z6xNrXd2UIeorGj5Ef7b1pJAYB' +
	'6Y5anaHqZ9J6nKEBvB4DnNLIVWSgARns' +
	'/8wR2SiRS7MNACwTyrGvt9ts8p12PKFd' +
	'lqYTopNHR1Vf7XjfhQlVsAJdNiKdYmYV' +
	'oKlaRv85IfVunYzO0IKXsyl7JCUjCpoG' +
	'20f0a04COwfneQAGGwd5oa+T8yO5hzuy' +
	'Db/XcxxmK01EpqOyuxINew==';
const iv = 'r7BXXKkLb8qrSNn05n0qiA==';

const pc = new WXBizDataCrypt(appId, sessionKey);

const data = pc.decryptData(encryptedData, iv);

console.log('解密后 data: ', data);
// 解密后的数据为
//
// data = {
//   "nickName": "Band",
//   "gender": 1,
//   "language": "zh_CN",
//   "city": "Guangzhou",
//   "province": "Guangdong",
//   "country": "CN",
//   "avatarUrl": "http://wx.qlogo.cn/mmopen/vi_32/aSKcBBPpibyKNicHNTMM0qJVh8Kjgiak2AHWr8MHM4WgMEm7GFhsf8OYrySdbvAMvTsw3mo8ibKicsnfN5pRjl1p8HQ/0",
//   "unionId": "ocMvos6NjeKLIBqg5Mr9QjxrP1FA",
//   "watermark": {
//     "timestamp": 1477314187,
//     "appid": "wx4f4bc4dec97d474b"
//   }
// }