```javascript
WXAPI.loginMobileSmsCode({
mobile: '',
code: '',
autoReg: true,
referrer: 123,
postJsonString: ''
})
```
+ mobile mobile phone number
+ code SMS verification code, ["Get SMS verification code"](https://www.yuque.com/apifm/nu0f75/pmoz4u)
+ If autoReg is true, it will automatically register when the user does not exist, otherwise it will directly return an error that the user does not exist.
+ postJsonString If the user does not exist, autoReg is true, and the json data of the user's extended attributes is saved when registering a new user (requires a string)
+ referrer If the user does not exist, autoReg is true, and the inviter information is saved when registering a new user.
```json
{
"code": 0,
"data": {
"uid": 1351478,
"openid": "om3AQ0YaRp3RZtFuZ1Wgk0OdQjvA",
"token": "83065b5e-9a75-4e64-8692-4f03eaa90348"
},
"msg": "success"
}
```
+ uid After successful login, return the user number
+ token is the token returned after the user logs in. Many subsequent user-related operations require the token to be operated.