| Name | Type | Description | refrence |
|---|---|---|---|
| AuctionItemID | System.Int32 | 车辆ID SourceType=0 | |
| AuctionSessionID | System.Int32 | 场次ID SourceType=1 | |
| DealerID | System.Int32 | 会员ID | |
| APPID | System.String | 调用支付接口的appid | |
| SourceType | System.Int32 | 0 车辆临时保证金（含打包拍） 1场次保证金（线下拍） | |
| WXTrade_Type | System.Int32 | 0APP 1JSAPI 2NATIVE | |
| MpOpenID | System.String | OpenID |