Wechat applet wxacode.getunlimited generates applet code

1、 obtain access_token

GET
https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid= Your little program appid&secret= Your little program secret

2、 Get QR code

POST
https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token= Acquired access_token
body Parameters ：
scene: ‘a=1’,// Jump with parameters
path : ‘pages/user/user’// Jump to the page

Back to picture Buffer data

3、 obtain scene value

Page({
    
  onLoad (query) {
    
    // scene  Need to use  decodeURIComponent  The generated QR code can only be obtained when it is passed in  scene
    const scene = decodeURIComponent(query.scene)
  }
})