Voice SDK Call Message Events

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call.on("messageReceived", (message) => {
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  console.log(JSON.stringify(message.content));
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  //the voiceEventSid can be used for tracking the message
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  console.log('voiceEventSid: ', message.voiceEventSid);
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})

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extension ViewController: CallMessageDelegate {
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    func callDidReceiveMessage(call: Call, message callMessage: CallMessage) {
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        NSLog("Call message received. Message: (callMessage.content)")
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    }
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}

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class MyCallMessageListener implements Call.CallMessageListener {
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   @Override
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   public void onMessageReceived(final CallMessage callMesssage) {
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      Log.d("[debug]", "Call message received. Message: " + callMessage.getContent());
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   }
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   @Override
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   public void onMessageSent(final String voiceEventSID) {
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      Log.d("[debug]", "Call message sent. Message Id: " + voiceEventSID);
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   }
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   @Override
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   public void onMessageFailure(final String voiceEventSID, final VoiceException error) {
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      Log.d("[debug]", "Call message failure. Message id: " +voiceEventSID + " error: " + error.getMessage());
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   }
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}

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call.addListener(Call.Event.MessageReceived, (message: CallMessage) => {
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  console.log(JSON.stringify(message.getContent()))
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  //the voiceEventSid can be used for tracking the message
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  console.log('voiceEventSid: ', message.getSid());
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});

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// Errors related to Call Message Events are emitted by the Device instance.
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device.on("error", function (twilioError) {
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  console.error(twilioError);
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});
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// a Call is active
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// add listener for 'messageSent' event
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call.on("messageSent", () => {
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  console.log("Message sent.")
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});
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// create the Call Message
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const callMessage = { 
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  content: { key1: 'This is a messsage from the parent call' },
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  messageType: 'user-defined-message', 
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  contentType: "application/json"
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}
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// send the message
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// the voiceEventSid can be used for tracking the message
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sendMessageButton.onclick = () => {
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  console.log('Sending message.')
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  const voiceEventSid = call.sendMessage(callMessage)
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}

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let call = TwilioVoiceSDK.connect(options: connectOptions, delegate: self)
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// Wait for a call to be connected
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// Construct the message object
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let message = "{ \"key1\": \"This is a message from the SDK\"}"
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let callMessage = CallMessage(content: message)
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// Send the message
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// voiceEventSid can be used for tracking the message
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let voiceEventSid = call.sendMessage(callMessage)
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// Handle success/failure
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extension ViewController: CallMessageDelegate {
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    func callDidSendMessage(call: Call, voiceEventSid: String) {
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        NSLog("Call message sent. Voice Event SID: (voiceEventSid)")
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    }
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    func callDidFailToSendMessage(call: Call, voiceEventSid: String, error: Error) {
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        NSLog("Failed to send call message. Voice Event SID: (voiceEventSid). Error: (error.localizedDescription)")
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    }
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}

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ConnectOptions cxnOptions = new ConnectOptions.Builder(accessToken)
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  .callMessageListener(new Call.CallMessageListener() {
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    @Override
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    public void onMessageReceived(final CallMessage callMesssage) {
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      Log.d("[debug]", "Call message received. Message: " + callMessage.getContent());
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    }
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    @Override
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    public void onMessageSent(final String voiceEventSID) {
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      Log.d("[debug]", "Call message sent. Message Id: " + voiceEventSID);
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    }
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    @Override
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    public void onMessageFailure(final String voiceEventSID, final VoiceException error) {
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      Log.d("[debug]", "Call message failure. Message id: " +voiceEventSID + " error: " + error.getMessage());
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    }
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  })
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  .params(params)
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  .build();
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Call call = voice.connect(myActivityContext, cxnOptions, myCallListener);
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// Wait for call to be connected
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...
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// Construct call message
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final CallMessage callMessage = (new CallMessage.Builder(CallMessage.MessageType.UserDefinedMessage))
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  .contentType("application/json")
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  .content((new JSONObject())
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    .put("test_field", "test")
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    .toString())
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  .build();
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...
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// Send message
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call.sendMessage(callMessage);

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// create the Call Message
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const message = new CallMessage({
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  // Note: content must match contentType
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  content: { key1: 'This is a message from the parent call' },
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  contentType: CallMessage.ContentType.ApplicationJson,
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  messageType: CallMessage.MessageType.UserDefinedMessage
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});
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// send the message 
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const outgoingCallMessage: OutgoingCallMessage = await call.sendMessage(message);
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// the voiceEventSid can be used for tracking the message
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const voiceEventSID = outgoingCallMessage.getSid()
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// add listener for 'messageFailure' event
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outgoingCallMessage.addListener(OutgoingCallMessage.Event.Failure, (error) => {
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  // outgoingCallMessage failed, handle error
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});
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// add listener for 'messageSent' event
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outgoingCallMessage.addListener(OutgoingCallMessage.Event.Sent, () => {
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    // outgoingCallMessage sent
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});