public async Task SubscribeOnCandles(string currencyPairId, CandlePeriod period, Action <IList <Infrastructure.Common.Models.Market.Candle> > callback, int limit = 30)
{
var request = new SocketSubscriptionRequest <CandleRequestParameters>
{
RequestMethodName = "subscribeCandles",
SnapshotMethodName = "snapshotCandles",
NotificationMethodName = "updateCandles",
UnsubscribeMethodName = "unsubscribeCandles",
RequestParameters = new CandleRequestParameters
{
CurrencyPairId = currencyPairId,
Period = period.ToInnerFormat(),
Limit = limit
}
};
await _connection.Subscribe <CandleNotificationParameters>(request, notificationParameters =>
{
var notificationCurrencyPairId = notificationParameters.CurrencyPairId;
var notificationPeriod = CandlePeriodMap.ToOuterFormat(notificationParameters.Period);
if (!(currencyPairId == notificationCurrencyPairId && notificationPeriod == period))
{
return;
}
callback(notificationParameters.Candles
.Select(CandleMap.ToOuterModel)
.ToList());
});
}
public async Task<IList<Infrastructure.Common.Models.Market.Candle>> GetCandles(String currencyPairId, CandlePeriod period, int limit)
{
var connection = new HitBtcConnection();
var request = new RestRequest(String.Format("public/candles/{0}", currencyPairId), Method.GET);
request.ConfigureRequest();
var candlePeriod = period.ToInnerFormat();
request.AddParameter("period", candlePeriod);
request.AddParameter("limit", limit);
request.AddParameter("sort", "DESC");
var response = await connection.DoRequest(request);
var candles = response
.ExtractResponseData<Candle[]>()
.Select(entity => entity.ToOuterModel())
.ToList();
return candles;
}
public async Task SubscribeOnCandles(string currencyPairId, CandlePeriod period, Action <IList <Candle> > callback, int limit = 30)
{
Connect();
var innerPeriod = period.ToInnerFormat();
var dateFrom = DateTime.UtcNow;
switch (period)
{
case CandlePeriod.Minute1:
dateFrom = dateFrom.AddMinutes(-(limit * 1));
break;
case CandlePeriod.Minute3:
dateFrom = dateFrom.AddMinutes(-(limit * 3));
break;
case CandlePeriod.Minute5:
dateFrom = dateFrom.AddMinutes(-(limit * 5));
break;
case CandlePeriod.Minute15:
dateFrom = dateFrom.AddMinutes(-(limit * 15));
break;
case CandlePeriod.Minute30:
dateFrom = dateFrom.AddMinutes(-(limit * 30));
break;
case CandlePeriod.Hour1:
dateFrom = dateFrom.AddHours(-(limit * 1));
break;
case CandlePeriod.Hour4:
dateFrom = dateFrom.AddHours(-(limit * 4));
break;
case CandlePeriod.Day1:
dateFrom = dateFrom.AddDays(-(limit * 1));
break;
case CandlePeriod.Day7:
dateFrom = dateFrom.AddDays(-(limit * 7));
break;
case CandlePeriod.Month1:
dateFrom = dateFrom.AddMonths(-(limit * 1));
break;
}
var dateTo = DateTime.UtcNow;
var innerExistingCandles = await _connection.Context.MarketCandlesAsync(currencyPairId, dateFrom, dateTo, innerPeriod);
var existingCandles = innerExistingCandles.Candles.Select(candle => candle.ToOuterModel()).ToList();
callback(existingCandles);
var subscription = new Subscription
{
SubscribeRequest = StreamingRequest.SubscribeCandle(currencyPairId, innerPeriod),
UnsubscribeRequest = StreamingRequest.UnsubscribeCandle(currencyPairId, innerPeriod),
EventHandler = (o, e) =>
{
if (!(e.Response is CandleResponse candleResponse) ||
candleResponse.Payload.Figi != currencyPairId ||
candleResponse.Payload.Interval != innerPeriod)
{
return;
}
var candle = candleResponse.Payload.ToOuterModel();
callback(new List <Candle> {
candle
});
}
};
_connection.StreamingEventReceived += (o, e) => subscription.EventHandler(o, e);
await _connection.Context.SendStreamingRequestAsync(subscription.SubscribeRequest);
}
