/// <summary>
/// 支付
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public override async Task <object> ToPay(PayInputBase input)
{
var weChatPayApi = IocResolver.Resolve <WeChatPayApi>();
if (weChatPayApi == null)
{
throw new UserFriendlyException("支付未开放，请联系管理员！");
}
var appPayInput = new MiniProgramPayInput()
{
Body = input.Body,
OutTradeNo = input.OutTradeNo,
Attach = input.Key,
TotalFee = input.TotalAmount,
SpbillCreateIp = _clientInfoProvider?.ClientIpAddress,
OpenId = input.OpenId,
};
try
{
var appPayOutput = weChatPayApi.MiniProgramPay(appPayInput);
return(await Task.FromResult(appPayOutput));
}
catch (Exception ex)
{
throw new UserFriendlyException(ex.Message);
}
}
/// <summary>
/// 小程序支付
/// 小程序统一下单接口
/// https://pay.weixin.qq.com/wiki/doc/api/wxa/wxa_api.php?chapter=9_1
/// </summary>
/// <returns></returns>
public MiniProgramPayOutput MiniProgramPay(MiniProgramPayInput input)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (input.TotalFee <= 0)
{
throw new ArgumentException("金额不能小于0!", nameof(input.TotalFee));
}
if (string.IsNullOrWhiteSpace(input.OpenId))
{
throw new ArgumentNullException("OpenId必须填写!", nameof(input.OpenId));
}
if (string.IsNullOrWhiteSpace(input.Body))
{
throw new ArgumentNullException("商品描述必须填写!", nameof(input.Body));
}
if (string.IsNullOrWhiteSpace(input.SpbillCreateIp))
{
throw new ArgumentNullException("终端IP必须填写!", nameof(input.SpbillCreateIp));
}
var url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
var config = GetConfig();
var model = new UnifiedorderRequest
{
AppId = config.PayAppId,
MchId = config.MchId,
Attach = input.Attach,
Body = input.Body,
Detail = input.Detail,
DeviceInfo = input.DeviceInfo,
FeeType = input.FeeType,
GoodsTag = input.GoodsTag,
LimitPay = input.LimitPay,
OpenId = input.OpenId,
OutTradeNo = input.OutTradeNo ?? weChatPayHelper.GenerateOutTradeNo(),
SpbillCreateIp = input.SpbillCreateIp,
TimeExpire = input.TimeExpire,
TimeStart = input.TimeStart,
TotalFee = ((int)(input.TotalFee * 100)).ToString(),
NonceStr = weChatPayHelper.GetNoncestr(),
NotifyUrl = config.PayNotifyUrl
};
var dictionary = weChatPayHelper.GetDictionaryByType(model);
model.Sign = weChatPayHelper.CreateMd5Sign(dictionary, config.TenPayKey); //生成Sign
var result = weChatPayHelper.PostXML <UnifiedorderResult>(url, model);
if (result.IsSuccess())
{
var data = new
{
appId = result.AppId,
nonceStr = result.NonceStr,
package = "prepay_id=" + result.PrepayId,
signType = "MD5",
timeStamp = weChatPayHelper.GetTimestamp()
};
return(new MiniProgramPayOutput
{
AppId = data.appId,
Package = data.package,
NonceStr = data.nonceStr,
PaySign =
weChatPayHelper.CreateMd5Sign(weChatPayHelper.GetDictionaryByType(data), config.TenPayKey),
SignType = data.signType,
TimeStamp = data.timeStamp
});
}
WeChatPayHelper.LoggerAction("Error", "支付错误：" + result.GetFriendlyMessage());
throw new WeChatPayException("支付错误，请联系客服或重新支付！");
}
