```javascript
WXAPI.dynamicUserCode(token)
```
+ token current user login credentials
```json
{
"code": 0,
"data": "723627932960607561",
"msg": "success"
}
```
Call this interface to obtain the dynamic membership code number of the currently logged-in user. You can generate a QR code or barcode from the membership code to facilitate merchants to scan the code;
The background API interface corresponding to the recognition is:/user/apiExtUser/info/dynamicUserCode**Note:**
1. The dynamic membership code is valid for 1 minute to prevent the membership code from being continued to be used after being screenshotted;
2. The dynamic membership code will be invalidated immediately after being used once to prevent it from being stolen within the 1-minute validity period;