/// <summary>
/// Either gets data or displays the exception in a popup
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="callResult"></param>
/// <returns></returns>
public static T GetOrDisplayError <T>(this CryptoExchange.Net.CallResult <T> callResult)
{
try
{
return(callResult.GetOrThrow());
}
catch (BinanceAPIException ex)
{
InfoPopup("Error", ex.Message, MessageBoxImage.Error);
return(default(T));
}
}
/// <summary>
/// Either throws an exception if the request was faulty or returns the data
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="callResult"></param>
/// <returns></returns>
public static T GetOrThrow <T>(this CryptoExchange.Net.CallResult <T> callResult)
{
if (callResult.Success == false)
{
var errorObj = Trading.BinanceErrorJSON.FromJson(callResult.Error.Message.Replace("Server error: ", ""));
throw new BinanceAPIException($"Could not get result: \"{errorObj.Msg} ({errorObj.Code})\"", errorObj.Code);
}
else
{
return(callResult.Data);
}
}
/// <summary>
/// Attach Bittrex AllMarketDeltaStream websocket stream to tickers processor.
/// This is a delta stream, sending only the changes since the last tick.
/// </summary>
/// <param name="callback">The callback.</param>
/// <param name="streamId">The stream identifier which can be used to dispose this stream without killing all other socket subscriptions.</param>
/// <returns>
/// The BittrexSocketClient
/// Note that this socketclient handles all subscriptions.
/// To unsubscribe a single subscription, use UnsubscribeFromStream(int streamId)
/// </returns>
public BittrexSocketClient GetTickersWebSocket(Action <IReadOnlyCollection <KeyValuePair <string, ExchangeTicker> > > callback, out int streamId)
{
streamId = -1;
if (callback == null)
{
return(null);
}
CryptoExchange.Net.CallResult <int> result = this.SocketClient.SubscribeToAllMarketDeltaStream
(
summaries =>
{
// Convert Bittrex.Net tickers objects into ExchangeSharp ExchangeTickers
var freshTickers = new Dictionary <string, ExchangeTicker>(StringComparer.OrdinalIgnoreCase);
foreach (BittrexMarketSummary market in summaries)
{
decimal quantityAmount = market.Volume.ConvertInvariant <decimal>();
decimal last = market.Last.ConvertInvariant <decimal>();
var ticker = new ExchangeTicker
{
Ask = market.Ask,
Bid = market.Bid,
Last = last,
Volume = new ExchangeVolume
{
QuantityAmount = quantityAmount,
QuantitySymbol = market.MarketName,
PriceAmount = market.BaseVolume.ConvertInvariant <decimal>(quantityAmount * last),
PriceSymbol = market.MarketName,
Timestamp = market.TimeStamp
}
};
freshTickers[market.MarketName] = ticker;
}
callback(freshTickers);
}
);
if (result.Success)
{
streamId = result.Data;
}
return(this.SocketClient);
}
/// <summary>
/// Returns whether a request succeded
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="callResult"></param>
/// <returns></returns>
public static bool Fails <T>(this CryptoExchange.Net.CallResult <T> callResult)
{
return(!callResult.Success);
}
