获取小程序码实例 wxacode

index.js

// 云函数入口函数
const request = require('request')

const appId = 'xxxxxx'
const appSecret = 'xxxxxxxx'

exports.main = ({userInfo}, context) => {
  return new Promise((resolve, reject) => {
    request({
      url: `https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=${appId}&secret=${appSecret}`
    }, (e, res, data) => {
      if (e) {
        reject(e)
      } else {
        let { access_token } = JSON.parse(data)
        request({
          url: `https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=${access_token}`,
          json: true,
          method: 'post',
          encoding: null,
          body: {
            path: 'pages/index'
          }
        }, (e, res, data) => {
          if(e) {
            reject(e)
          }else {
            resolve(Buffer.from(data).toString('base64'))
          }
        })
      }
    })
  })  
}