云函数获取UnionID失败 - WXOPEN Club | 微信小程序专业社区

用wx.login + code2Session的方式在云函数中获取UnionID失败

云控制台打印出来的解密之后的data

这是我云函数的代码，WXBizDataCrypt用的是官方的Node解密demo的文件

// 云函数入口文件

const cloud = require('wx-server-sdk')

const request = require('request');

const WXBizDataCrypt = require('./WXBizDataCrypt')

cloud.init()

const db = cloud.database();

// 云函数入口函数

exports.main = async (event, context) => {

let url = 'https://api.weixin.qq.com/sns/jscode2session?appid=wx80729b3c71a89b47&secret=d7425e5d465a3ee7e6f3a0aca3ab8ab2&js_code=' +

event.code +

'&grant_type=authorization_code';

return new Promise((resolve, reject) => {

new Promise((resolve, reject) => {

try {

request(url, function (error, response, body) {

if (!error && response.statusCode == 200) {

return resolve(body)

} else {

return reject(err)

}

})

} catch (err) {

return reject(err)

}

}).then(res => {

console.log(res)

console.log(JSON.parse(res))

let result = JSON.parse(res);

let appId = event.userInfo.appId;

let sessionKey = result.session_key;

console.log(sessionKey)

let encryptedData = event.encryptedData;

let iv = event.iv;

let pc = new WXBizDataCrypt(appId, sessionKey);

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

console.log("----data--------:", data)

console.log("-------UnionID--------:", data.unionId)

return resolve("ok")

});

}