public static string Build3PartyRequestUrl(VPCRequest request, string secureHashCode)
{
if (request == null || secureHashCode == null)
{
return(null);
}
var sortedDictionary = request.ToVPCSortedDictionary();
var queryString = sortedDictionary.ToUrlQueryString();
var secureHash = HashHelper.CreateHMACSHA256Signature(secureHashCode, queryString);
return($"{request.SUBMIT_PAYMENT_URL}?{queryString}&vpc_SecureHash={secureHash}&vpc_SecureHashType=SHA256");
}
