public Task SubscribeTrades(string symbol, int limit, Action <TradeEventArgs> callback, Action <Exception> exception, CancellationToken cancellationToken)
{
var tcs = new TaskCompletionSource <object>();
var binanceApi = new BinanceApi();
var tradeCache = new TradeCache(binanceApi, new TradeWebSocketClient());
tradeCache.Subscribe(symbol, limit, e =>
{
if (cancellationToken.IsCancellationRequested)
{
tradeCache.Unsubscribe();
return;
}
var trades = e.Trades.Select(t => NewTrade(t)).ToList();
try
{
callback.Invoke(new TradeEventArgs {
Trades = trades
});
}
catch (Exception ex)
{
tradeCache.Unsubscribe();
exception.Invoke(ex);
return;
}
});
tcs.SetResult(null);
return(tcs.Task);
}
public void SubscribeTrades(string symbol, int limit, Action <TradeEventArgs> callback, Action <Exception> exception, CancellationToken cancellationToken)
{
try
{
var tradeCache = new TradeCache(binanceApi, new TradeWebSocketClient());
tradeCache.Subscribe(symbol, limit, e =>
{
if (cancellationToken.IsCancellationRequested)
{
tradeCache.Unsubscribe();
return;
}
try
{
var trades = e.Trades.Select(t => NewTrade(t)).ToList();
callback.Invoke(new TradeEventArgs {
Trades = trades
});
}
catch (Exception ex)
{
tradeCache.Unsubscribe();
exception.Invoke(ex);
}
});
}
catch (Exception ex)
{
exception.Invoke(ex);
}
}
public void Unsubscribe()
{
var api = new Mock <IBinanceApi>().Object;
var client = new Mock <ITradeClient>().Object;
var cache = new TradeCache(api, client);
// Can call unsubscribe before subscribe or multiple times without fail.
cache.Unsubscribe();
cache.Unsubscribe();
}