public async Task <IActionResult> sendUssd(UssdMessage message)
{
var ret = await UssdService.singleton.send(message);
if (ret.error != null)
{
return(BadRequest(ret.error.GetBaseException().Message));
}
ret = await UssdService.transient().send(message);
if (ret.error != null)
{
return(BadRequest(ret.error.GetBaseException().Message));
}
return(Ok(ret.id));
}
private async void SendButton_Click(object sender, RoutedEventArgs e)
{
// Get the USSD message text.
if (MessageText.Text == "")
{
rootPage.NotifyUser("Message cannot be empty", NotifyType.ErrorMessage);
return;
}
try
{
// Get the network account ID.
IReadOnlyList <string> networkAccIds = Windows.Networking.NetworkOperators.MobileBroadbandAccount.AvailableNetworkAccountIds;
if (networkAccIds.Count == 0)
{
rootPage.NotifyUser("No network account ID found", NotifyType.ErrorMessage);
return;
}
// For the sake of simplicity, assume we want to use the first account.
// Refer to the MobileBroadbandAccount API's for how to select a specific account ID.
string networkAccountId = networkAccIds[0];
SendButton.IsEnabled = false;
rootPage.NotifyUser("Sending USSD request", NotifyType.StatusMessage);
// Create a USSD session for the specified network acccount ID.
UssdSession session = UssdSession.CreateFromNetworkAccountId(networkAccountId);
// Send a message to the network and wait for the reply. This message is
// specific to the network operator and must be selected accordingly.
UssdReply reply = await session.SendMessageAndGetReplyAsync(new UssdMessage(MessageText.Text));
// Display the network reply. The reply always contains a ResultCode.
UssdResultCode code = reply.ResultCode;
if (code == UssdResultCode.ActionRequired || code == UssdResultCode.NoActionRequired)
{
// If the actionRequired or noActionRequired ResultCode is returned, the reply contains
// a message from the network.
UssdMessage replyMessage = reply.Message;
string payloadAsText = replyMessage.PayloadAsText;
if (payloadAsText != "")
{
// The message may be sent using various encodings. If Windows supports
// the encoding, the message can be accessed as text and will not be empty.
// Therefore, the test for an empty string is sufficient.
rootPage.NotifyUser("Response: " + payloadAsText, NotifyType.StatusMessage);
}
else
{
// If Windows does not support the encoding, the application may check
// the DataCodingScheme used for encoding and access the raw message
// through replyMessage.GetPayload
rootPage.NotifyUser("Unsupported data coding scheme 0x" + replyMessage.DataCodingScheme.ToString("X"),
NotifyType.StatusMessage);
}
}
else
{
rootPage.NotifyUser("Request failed: " + code.ToString(), NotifyType.StatusMessage);
}
if (code == UssdResultCode.ActionRequired)
{
session.Close(); // Close the session from our end
}
}
catch (Exception ex)
{
rootPage.NotifyUser("Unexpected exception occured: " + ex.ToString(), NotifyType.ErrorMessage);
}
SendButton.IsEnabled = true;
}