微信开发-UnionID机制相关文档

1.微信开放平台帐号管理

获取openid

https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1498704804_iARAL&token=&lang=zh_CN

2.公众号、小程序绑定微信开放平台帐号
https://developers.weixin.qq.com/miniprogram/introduction/#小程序绑定微信开放平台帐号

3.获取authorizer_access_token
https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1453779503&token=&lang=zh_CN

4.获取用户基本信息(UnionID机制)

根据openid、ACCESS_TOKEN获取UnionID

https://mp.weixin.qq.com/wiki?t=resource/res_main&id=mp1421140839