WeChat applet example: How to get the user's openid (with code)

The content of this article is about the WeChat applet example: how to obtain the user's openid (with code). It has certain reference value. Friends in need can refer to it. I hope It will help you.

openid is the user’s unique identifier in the mini program. The method of obtaining it is as follows:

Mini program operation: app.js

App({ onLaunch: function () { // 登录 wx.login({ success: res => { // 发送 res.code 到后台换取 openId, sessionKey, unionId wx.request({ url: '后台接口', data: { code: res.code }, success: function (res) { }, fail: function (err) { } }) } }) } })

Background operation:

For detailed operations, please see the official documentation

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