From 672496d34d2d23fc4e2d35a32bcc62d35dc5517c Mon Sep 17 00:00:00 2001
From: jiangyong <jiangyong@batiao8.com>
Date: Tue, 28 Apr 2026 11:16:53 +0800
Subject: [PATCH] pay extra

---
 unify/pay_type.go | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/unify/pay_type.go b/unify/pay_type.go
index 89eb630..e7f7450 100644
--- a/unify/pay_type.go
+++ b/unify/pay_type.go
@@ -55,12 +55,13 @@ type RefundOrderReq struct {
 }
 
 type TransferReq struct {
-	PayAmount  int64  `json:"payAmount"`
-	PayType    string `json:"payType"`
-	PayTitle   string `json:"payTitle"`
-	PayChannel string `json:"payChannel"`
-	UserId     string `json:"userId"`
-	OutTradeNo string `json:"outTradeNo"`
+	PayAmount  int64                  `json:"payAmount"`
+	PayType    string                 `json:"payType"`
+	PayTitle   string                 `json:"payTitle"`
+	PayChannel string                 `json:"payChannel"`
+	UserId     string                 `json:"userId"`
+	OutTradeNo string                 `json:"outTradeNo"`
+	Extra      map[string]interface{} `json:"extra"`
 }
 
 type CommonResponse struct {