public async Task Subscribe(EventsSubscribeRequest request, ReceiveEventsMessage messageHandler, ReceiveEventsError errorHandler, CancellationToken cancellationToken = new CancellationToken())
{
request.ClientId = this.ClientOptions.PopulateClientId(request.ClientId);
request.Validate();
if (messageHandler == null)
{
throw new ArgumentNullException(nameof(messageHandler), "request must have a non-null message delegate");
}
if (errorHandler == null)
{
throw new ArgumentNullException(nameof(messageHandler), "request must have a non-null error delegate");
}
while (true)
{
try
{
using (var call = Client.SubscribeToEvents(request.ToSubscribeRequest(),
ClientOptions.GetGrpcMetadata(),
null, cancellationToken))
{
while (await call.ResponseStream.MoveNext())
{
EventsReceiveMessage message = new EventsReceiveMessage(call.ResponseStream.Current);
messageHandler(message);
}
}
}
catch (RpcException rpcx)
{
if (rpcx.StatusCode == StatusCode.Cancelled)
{
break;
}
else
{
errorHandler(rpcx.Message);
}
}
catch (Exception e)
{
errorHandler(e.Message);
}
await Task.Delay(ClientOptions.ReconnectInterval);
}
}
public async Task Subscribe(EventsSubscribeRequest[] requests, ReceiveEventsMessage messageHandler, ReceiveEventsError errorHandler, CancellationToken cancellationToken = new CancellationToken())
{
if (messageHandler == null)
{
throw new ArgumentNullException(nameof(messageHandler), "request must have a non-null message delegate");
}
if (errorHandler == null)
{
throw new ArgumentNullException(nameof(messageHandler), "request must have a non-null error delegate");
}
Task[] taskArray = new Task[requests.Length];
for (int i = 0; i < requests.Length; i++)
{
taskArray[i] = Subscribe(requests[i], messageHandler, errorHandler, cancellationToken);
}
await Task.WhenAll(taskArray);
}
