public static async Task <bool> CheckIfPaymentIsPaidAsync(string transactionId, string appId, string merchantId, string merchantKey)
{
var nonce = Guid.NewGuid().ToString().Replace("-", "");
var sign = WechatMd5SignGenerator.GetMd5Hash(appId, merchantId, nonce, transactionId, merchantKey);
var verification = new WechatPaymentVerificationModel
{
AppId = appId,
MerchantId = merchantId,
Nonce = nonce,
Sign = sign,
TransactionId = transactionId
};
var response = await PostAsync <WechatPaymentVerificationModel, WechatPaymentVerificationResultModel>("pay/orderquery", verification);
var paid = string.Equals(response.ResultCode, WechatPayStatus.SUCCESS.ToString()) && string.Equals(response.ReturnCode, WechatPayStatus.SUCCESS.ToString()) && string.Equals(response.TradeState, WechatTradeState.SUCCESS.ToString()) && string.Equals(transactionId, response.TransactionId);
if (!paid)
{
LoggingQueue.Add(new LogMessage
{
LogLevel = LogLevel.Log,
Message = $"Wechat paid status: TransactionId: {transactionId}, ReturnCode: {response.ReturnCode}, ResultCode: {response.ResultCode}"
});
}
return(paid);
}
