42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
package wechat
|
||
|
||
import (
|
||
"context"
|
||
"fmt"
|
||
"time"
|
||
|
||
"github.com/ArtisanCloud/PowerWeChat/v3/src/payment/refund/request"
|
||
)
|
||
|
||
// RefundOrder 调用微信支付 v3 退款接口（全额退款）
|
||
// orderSn: 商户订单号；transactionID: 微信支付单号（二选一，有则优先用 transactionID）；totalCents: 订单金额（分）；reason: 退款原因
|
||
func RefundOrder(ctx context.Context, orderSn, transactionID string, totalCents int, reason string) error {
|
||
if paymentApp == nil || paymentApp.Refund == nil {
|
||
return fmt.Errorf("支付/退款未初始化")
|
||
}
|
||
if totalCents <= 0 {
|
||
return fmt.Errorf("退款金额必须大于 0")
|
||
}
|
||
outRefundNo := fmt.Sprintf("RF%s%06d", time.Now().Format("20060102150405"), time.Now().UnixNano()%1000000)
|
||
if reason == "" {
|
||
reason = "用户申请退款"
|
||
}
|
||
req := &request.RequestRefund{
|
||
OutRefundNo: outRefundNo,
|
||
Reason: reason,
|
||
Amount: &request.RefundAmount{
|
||
Refund: totalCents,
|
||
Total: totalCents,
|
||
Currency: "CNY",
|
||
From: []*request.RefundAmountFrom{},
|
||
},
|
||
}
|
||
if transactionID != "" {
|
||
req.TransactionID = transactionID
|
||
} else {
|
||
req.OutTradeNo = orderSn
|
||
}
|
||
_, err := paymentApp.Refund.Refund(ctx, req)
|
||
return err
|
||
}
|