May 20, 2021 WeChat Mini Program Development Document
This document describes messages or events received on the server side, see Message Push for details.
Get a pre-authorization code
| Property | Type | Description |
|---|---|---|
| ToUserName | string | Express company small program UserName |
| FromUserName | string | WeChat team's OpenID (fixed value) |
| CreateTime | number | Event time, Unix timestamp |
| MsgType | string | Message type, pinned to event |
| Event | string | The event type, fixed to get_pre_auth_code, is case insenso sensitive |
| wx_appid | string | Launch an authorized merchant applet appid |
| Property | Type | The default | Required | Description |
|---|---|---|---|---|
| ToUserName | string | Is | Return as is fromUserName in the request | |
| FromUserName | string | Is | Express company small program UserName | |
| CreateTime | number | Is | Event time, Unix timestamp | |
| MsgType | string | Is | Message type, pinned to event | |
| Event | string | Is | The event type, fixed to get_pre_auth_code, is case insenso sensitive | |
| resultcode | number | Is | Error code | |
| resultmsg | string | Is | The error description | |
| pre_auth_code | string | Is | Pre-authorization code |