/// <summary>
/// 验证参数
/// </summary>
/// <param name="param">支付参数</param>
protected void ValidateParam(WechatRefundRequest param)
{
if (param.TransactionId.IsEmpty() && param.OrderId.IsEmpty())
{
throw new Warning("商户订单号和微信订单号只能设置一个");
}
}
/// <summary>
/// 申请退款
/// </summary>
/// <param name="request">提交给申请退款API的参数</param>
/// <param name="config"></param>
/// <param name="timeOut">超时时间</param>
/// <returns>成功时返回接口调用结果，其他抛异常</returns>
public static async Task <WechatRefundResponse> RefundAsync(WechatRefundRequest request, WechatpayConfig config, int timeOut = 6)
{
//检测必填参数
if (string.IsNullOrEmpty(request.OutTradeNo) && string.IsNullOrEmpty(request.TransactionId))
{
throw new Exception("退款申请接口中，out_trade_no、transaction_id至少填一个！");
}
else if (string.IsNullOrEmpty(request.OutRefundNo))
{
throw new Exception("退款申请接口中，缺少必填参数out_refund_no！");
}
else if (request.TotalFee <= 0)
{
throw new Exception("退款申请接口中，缺少必填参数total_fee！");
}
else if (request.RefundFee <= 0)
{
throw new Exception("退款申请接口中，缺少必填参数refund_fee！");
}
var result = await HttpService.ExecuteAsync(request, config, WechatConstants.RefundOrderUrl, true);
if (result.ReturnCode != WechatConstants.SUCCESS && result.ResultCode != WechatConstants.SUCCESS)
{
throw new Exception(result.ReturnMsg);
}
return(result);
}
/// <summary>
/// 验证
/// </summary>
protected void Validate(WechatpayConfig config, WechatRefundRequest param)
{
config.CheckNull(nameof(config));
param.CheckNull(nameof(param));
config.Validate();
param.Validate();
ValidateConfig(config);
ValidateParam(param);
}
/// <summary>
/// 退款
/// </summary>
/// <param name="request">退款参数</param>
public async Task <RefundResult> RefundAsync(WechatRefundRequest request)
{
var config = await ConfigProvider.GetConfigAsync();
Validate(config, request);
var builder = new WechatpayRefundParameterBuilder(config);
Config(builder, request);
return(await RequstResult(config, builder));
}
/// <summary>
/// 初始化
/// </summary>
public void Init(WechatRefundRequest param)
{
param.CheckNull(nameof(param));
RefundFee(param.RefundFee)
.Description(param.RefundDescription)
.RefundId(param.RefundId)
.TransactionId(param.TransactionId)
.AppId(Config.AppId)
.MerchantId(Config.MerchantId)
.Add("nonce_str", Id.Guid())
.OutTradeNo(param.OrderId)
.TotalFee(param.Money);
}
public async Task Test5()
{
var config = new WechatpayConfig();
var request = new WechatRefundRequest
{
OutTradeNo = "202007297777",
TotalFee = 100,
RefundFee = 100,
OutRefundNo = HttpService.GenerateOutTradeNo(config)
};
var response = await WechatpayClient.RefundAsync(request, config);
if (string.IsNullOrEmpty(response.TransactionId))
{
Assert.Fail();
}
else
{
Assert.Pass();
}
}
/// <summary>
/// 配置
/// </summary>
/// <param name="builder">参数生成器</param>
/// <param name="param">支付参数</param>
protected void Config(WechatpayRefundParameterBuilder builder, WechatRefundRequest param)
{
builder.Init(param);
}
