private void button1_Click(object sender, EventArgs e)
{
//request params need to request to MoMo system
string endpoint = textEndpoint.Text.Equals("") ? "https://test-payment.momo.vn/gw_payment/transactionProcessor" : textEndpoint.Text;
string partnerCode = textPartnerCode.Text;
string accessKey = textAccessKey.Text;
string serectkey = "nqQiVSgDMy809JoPF6OzP5OdBUB550Y4";
string orderInfo = textOrderInfo.Text;
string returnUrl = textReturn.Text;
string notifyurl = textNotify.Text;
string amount = textAmount.Text;
string orderid = Guid.NewGuid().ToString();
string requestId = Guid.NewGuid().ToString();
string extraData = "";
//Before sign HMAC SHA256 signature
string rawHash = "partnerCode=" +
partnerCode + "&accessKey=" +
accessKey + "&requestId=" +
requestId + "&amount=" +
amount + "&orderId=" +
orderid + "&orderInfo=" +
orderInfo + "&returnUrl=" +
returnUrl + "¬ifyUrl=" +
notifyurl + "&extraData=" +
extraData;
log.Debug("rawHash = " + rawHash);
MoMoSecurity crypto = new MoMoSecurity();
//sign signature SHA256
string signature = crypto.signSHA256(rawHash, serectkey);
log.Debug("Signature = " + signature);
//build body json request
JObject message = new JObject
{
{ "partnerCode", partnerCode },
{ "accessKey", accessKey },
{ "requestId", requestId },
{ "amount", amount },
{ "orderId", orderid },
{ "orderInfo", orderInfo },
{ "returnUrl", returnUrl },
{ "notifyUrl", notifyurl },
{ "extraData", extraData },
{ "requestType", "captureMoMoWallet" },
{ "signature", signature }
};
log.Debug("Json request to MoMo: " + message.ToString());
string responseFromMomo = PaymentRequest.sendPaymentRequest(endpoint, message.ToString());
JObject jmessage = JObject.Parse(responseFromMomo);
log.Debug("Return from MoMo: " + jmessage.ToString());
DialogResult result = MessageBox.Show(responseFromMomo, "Open in browser", MessageBoxButtons.OKCancel);
if (result == DialogResult.OK)
{
//yes...
System.Diagnostics.Process.Start(jmessage.GetValue("payUrl").ToString());
}
else if (result == DialogResult.Cancel)
{
//no...
}
}