First, you need to use the login api of `WeChat Mini Program` to obtain the temporary `code` of the current user, and then use the code to log in:
["WeChat Mini Program login api instructions"](https://developers.weixin.qq.com/miniprogram/dev/api/open-api/login/wx.login.html)
After getting the `code`, complete the login:
```javascript
WXAPI.login_wx(code)
```
+ code The user temporary code of WeChat Mini Program obtained in the previous step
```json
{
"code": 0,
"data": {
"uid": 1351478,
"openid": "om3AQ0YaRp3RZtFuZ1Wgk0OdQjvA",
"mobile": "1860000062",
"token": "83065b5e-9a75-4e64-8692-4f03eaa90348"
},
"msg": "success"
}
```
+ uid After successful login, return the user number
+ openid is the openid of the current WeChat user corresponding to the current mini program
+ mobile is the current user’s mobile phone number
+ token is the token returned after the user logs in. Many subsequent user-related operations require the token to be operated.