public override async Task Subscribe(Subscription subscription, IServerStreamWriter <Event> responseStream, ServerCallContext context)
{
//Dict to hold a streamWriter for each subscriber.
SubscriberWritersMap[subscription.Id] = responseStream;
while (SubscriberWritersMap.Count > 0)
{
//Wait on BufferBlock from MS Dataflow package.
var subscriptionEvent = await _buffer.ReceiveAsync();
if (SubscriberWritersMap.ContainsKey(subscriptionEvent.SubscriptionId))
{
await SubscriberWritersMap[subscriptionEvent.SubscriptionId].WriteAsync(subscriptionEvent.Event);
}
}
}
public override Task <IsSubscribedResponse> IsSubscribed(IsSubscribedRequest request, ServerCallContext context)
{
return(Task.FromResult(new IsSubscribedResponse {
Subscribed = SubscriberWritersMap.ContainsKey(request.Id)
}));
}