How do I send events, for example, to start Nova Sonic session, or send audio data?

[oleg-boulanov]

Hello.

I'm trying to figure out a sequence of actions to use Sonic.
So far it looks like that, as much as I could figure out from the method signatures (I may be completely wrong about it...):

    Aws::BedrockRuntime::Model::InvokeModelWithBidirectionalStreamRequest request;
    request.SetModelId("amazon.nova-sonic-v1:0");

    InvokeModelWithBidirectionalStreamStreamReadyHandler streamReadyHandler = [promptStart](InvokeModelWithBidirectionalStreamInput& input) {

//*****************************************
How do I format events to messages here?
//*****************************************
        input.WriteEvent(m);
    };

    InvokeModelWithBidirectionalStreamResponseReceivedHandler responseReceivedHandler = [](const BedrockRuntimeClient* pClient,
        const Model::InvokeModelWithBidirectionalStreamRequest& request,
        const Model::InvokeModelWithBidirectionalStreamOutcome& outcome,
        const shared_ptr<const Aws::Client::AsyncCallerContext>& pContext)
    {
        logtime(cout) << "Response received: " << (outcome.IsSuccess()?"success":"failure") << endl;
    };

    Aws::BedrockRuntime::Model::InvokeModelWithBidirectionalStreamHandler& streamHandler = request.GetEventStreamHandler();
    streamHandler.SetInitialResponseCallbackEx(
        [](const InvokeModelWithBidirectionalStreamInitialResponse& initialResponse, const Utils::Event::InitialResponseType initialResponseType) {
        switch (initialResponseType) {
        case InitialResponseType::ON_EVENT:
            logtime(cout) << "Init(Event): ";
            break;
        case InitialResponseType::ON_RESPONSE:
            logtime(cout) << "Init(Response): ";
            break;
        };
        cout << initialResponse.Jsonize().View().WriteCompact(true) << endl;
    });
    streamHandler.SetOnErrorCallback(
        [](const Aws::Client::AWSError<BedrockRuntimeErrors>& error) {
        logtime(cout) << "Error: " << error.GetExceptionName()<< endl;

//*********************************************************
        // Error: validationException => Unable to parse ExceptionName: validationException Message: Invalid input request, please fix 
your input and try again.
//*********************************************************

    });
    streamHandler.SetBidirectionalOutputPayloadPartCallback(
        [](const BidirectionalOutputPayloadPart& part) {
        logtime(cout) << "Part: " << part.Jsonize().View().WriteCompact(true) << endl;
    });

    client.InvokeModelWithBidirectionalStreamAsync(request, streamReadyHandler, responseReceivedHandler);

Is there any documentation on that?
Can anybody point me in the right direction, please?

Thanks in advance,
Oleg