public async Task <IAsyncDisposable> SubscribeAsync(
IObserver <IStompMessage> observer,
string destination,
string ack = null,
bool useReceipt = true,
IEnumerable <KeyValuePair <string, string> > extraHeaders = null,
CancellationToken?cancellationToken = null)
{
string subscriptionId = Client.GetNextSubscriptionId();
IDisposable disposableSubscription =
new StompSubscription(
Client,
observer,
subscriptionId,
ack == StompAckValues.AckClientIndividualValue || ack == StompAckValues.AckClientValue,
TransactionId);
try
{
await Client.WriteSubscribeAsync(
destination,
subscriptionId,
useReceipt?Client.GetNextReceiptId() : null,
ack,
extraHeaders,
cancellationToken);
}
catch (Exception)
{
disposableSubscription.Dispose();
throw;
}
return(new AsyncActionDisposable(
async(cancelToken) =>
{
await Client.WriteUnsubscribeAsync(subscriptionId, useReceipt ? Client.GetNextReceiptId() : null, null, cancelToken);
disposableSubscription.Dispose();
}));
}