Subscription - keepAliveInterval is reached

[rureverek]

I have small issue when working with Subscription feature. I realised that after keepAliveinterval specified in SubscriptionProperties, my Subscription gets flooded by notifications even that data didn't changed...

Is it possible to turn off notifications (publishCallback()) when keepAliveinterval is reached?

I'm using the code similar to one i tutorial:

  flatbuffers::FlatBufferBuilder builder;
  auto dataChange = comm::datalayer::CreateSampling(builder, 2500);
  auto rule = comm::datalayer::CreateProperty(builder, comm::datalayer::Properties::Properties_Sampling, dataChange.Union());
  auto rules = builder.CreateVector(&rule, 1);
  auto idTmp = builder.CreateString(id);
  builder.Finish(comm::datalayer::CreateSubscriptionProperties(builder, idTmp, 60000, 1000, rules));
  comm::datalayer::Variant subscriptionProperties;
  subscriptionProperties.shareFlatbuffers(builder);

  auto result = m_datalayerClient->createSubscriptionSync(subscriptionProperties, publishCallback());

I would like to have notification only when data is changed, and in the case keepAliveInterval is reached I don't want to have any publishCallback().

[tira-misu]

At the moment is not possible to turn off keepalive notifications. But I will add an option to disable it in future versions.

With your settings your publishCallback should only get a keepalive notification every minute. And you will only get a keepalive notification when your callback is not called with other events. Is one event every minute a flooding? A simple filtering in your callback function should do the job.

In your example you use a sampling interval of 2500µs (yes this value is in µs). Are you shure you want this?