Qt gRPC - get return value of a call asyncronously

[martonmiklos]

Hello all,

I have an RPC call (StartStream) defined here:
https://github.com/saleae/logic2-automation/blob/develop/proto/saleae/grpc/saleae.proto#L36

it returns a StartCaptureReply.

The qtgrpcgen tool generates the following API:

QGrpcStatus StartCapture(const saleae::automation::StartCaptureRequest &arg, saleae::automation::StartCaptureReply *ret);
    std::shared_ptr<QGrpcCallReply> StartCapture(const saleae::automation::StartCaptureRequest &arg);
    Q_INVOKABLE void StartCapture(const saleae::automation::StartCaptureRequest &arg, const QObject *context, const std::function<void(std::shared_ptr<QGrpcCallReply>)> &callback);

I use the following code to call the StartCapture:

auto reply = m_client->StartCapture(req);
    reply->subscribe(this,
        [this]() {
            finishExecution(true);
        },
        [this](const QGrpcStatus &status) {
            grpcErrorOccurred(status);
        });

Is there any way to get access to the StartCaptureReply in the slot attached to the QGrpcCallReply::finished signal (attached by the subscribe)?

[SGaist]

Hi,

Since the callback is a lambda, why don't you pass the reply to it the same way you do for this ?