internal Task <CallResult <UpdateSubscription> > SubscribeInternal <T>(string url, IEnumerable <string> topics, Action <DataEvent <T> > onData)
{
var request = new BinanceSocketRequest
{
Method = "SUBSCRIBE",
Params = topics.ToArray(),
Id = NextId()
};
return(SubscribeAsync(url, request, null, false, onData));
}
/// <inheritdoc />
protected override async Task <bool> UnsubscribeAsync(SocketConnection connection, SocketSubscription subscription)
{
var topics = ((BinanceSocketRequest)subscription.Request !).Params;
var unsub = new BinanceSocketRequest {
Method = "UNSUBSCRIBE", Params = topics, Id = NextId()
};
var result = false;
if (!connection.Socket.IsOpen)
{
return(true);
}
await connection.SendAndWaitAsync(unsub, ResponseTimeout, data =>
{
if (data.Type != JTokenType.Object)
{
return(false);
}
var id = data["id"];
if (id == null)
{
return(false);
}
if ((int)id != unsub.Id)
{
return(false);
}
var result = data["result"];
if (result?.Type == JTokenType.Null)
{
result = true;
return(true);
}
return(true);
}).ConfigureAwait(false);
return(result);
}