public void UpdateTickersInfo()
{
string address = "https://poloniex.com/public?command=returnTicker";
string text = GetDownloadString(address);
if (string.IsNullOrEmpty(text))
{
return;
}
JObject res = (JObject)JsonConvert.DeserializeObject(text);
foreach (JProperty prop in res.Children())
{
PoloniexTicker t = Tickers.FirstOrDefault((i) => i.CurrencyPair == prop.Name);
JObject obj = (JObject)prop.Value;
t.Last = obj.Value <double>("last");
t.LowestAsk = obj.Value <double>("lowestAsk");
t.HighestBid = obj.Value <double>("highestBid");
t.Change = obj.Value <double>("percentChange");
t.BaseVolume = obj.Value <double>("baseVolume");
t.Volume = obj.Value <double>("quoteVolume");
t.IsFrozen = obj.Value <int>("isFrozen") != 0;
t.Hr24High = obj.Value <double>("high24hr");
t.Hr24Low = obj.Value <double>("low24hr");
}
}
public void GetOrderBook(PoloniexTicker ticker, int depth)
{
string address = string.Format("https://poloniex.com/public?command=returnOrderBook¤cyPair={0}&depth={1}",
Uri.EscapeDataString(ticker.CurrencyPair), depth);
string text;
using (WebClient client = new WebClient()) {
text = client.DownloadString(address);
}
ticker.OrderBook.Bids.Clear();
ticker.OrderBook.Asks.Clear();
JObject res = (JObject)JsonConvert.DeserializeObject(text);
foreach (JProperty prop in res.Children())
{
if (prop.Name == "asks" || prop.Name == "bids")
{
OrderBookEntryType type = prop.Name == "asks" ? OrderBookEntryType.Ask : OrderBookEntryType.Bid;
JArray items = prop.Value.ToObject <JArray>();
foreach (JArray item in items.Children())
{
OrderBookUpdateInfo info = new OrderBookUpdateInfo();
info.Type = prop.Name == "asks" ? OrderBookEntryType.Ask : OrderBookEntryType.Bid;
info.Entry = new OrderBookEntry();
info.Action = OrderBookUpdateType.Modify;
JEnumerable <JToken> values = (JEnumerable <JToken>)item.Children();
JValue rateValue = (JValue)values.First();
info.Entry.Value = rateValue.ToObject <double>();
info.Entry.Amount = rateValue.Next.ToObject <double>();
if (type == OrderBookEntryType.Ask)
{
ticker.OrderBook.ForceAddAsk(info);
}
else
{
ticker.OrderBook.ForceAddBid(info);
}
}
}
else if (prop.Name == "seq")
{
ticker.OrderBook.SeqNumber = prop.Value.ToObject <int>();
Console.WriteLine("Snapshot seq no = " + ticker.OrderBook.SeqNumber);
}
else if (prop.Name == "isFrozen")
{
ticker.IsFrozen = prop.Value.ToObject <int>() == 0;
}
}
ticker.OrderBook.ApplyQueueUpdates();
}
protected void RaiseTickerUpdate(PoloniexTicker t)
{
TickerUpdateEventArgs e = new TickerUpdateEventArgs()
{
Ticker = t
};
if (TickerUpdate != null)
{
TickerUpdate(this, e);
}
t.RaiseChanged();
}
public IDisposable ConnectOrderBook(PoloniexTicker ticker)
{
ticker.OrderBook.Updates.Clear();
DefaultWampChannelFactory channelFactory =
new DefaultWampChannelFactory();
IWampChannel wampChannel = channelFactory.CreateJsonChannel(PoloniexServerAddress, "realm1");
wampChannel.Open().Wait();
ISubject <OrderBookUpdateInfo> subject = wampChannel.RealmProxy.Services.GetSubject <OrderBookUpdateInfo>(ticker.OrderBook.Owner.Name, new OrderBookUpdateInfoConverter());
return(subject.Subscribe(x => ticker.OrderBook.OnRecvUpdate(x)));
}
public void Assign(PoloniexTicker ticker)
{
CurrencyPair = ticker.CurrencyPair;
Last = ticker.Last;
LowestAsk = ticker.LowestAsk;
HighestBid = ticker.HighestBid;
Change = ticker.Change;
BaseVolume = ticker.BaseVolume;
Volume = ticker.Volume;
IsFrozen = ticker.IsFrozen;
Hr24High = ticker.Hr24High;
Hr24Low = ticker.Hr24Low;
Time = ticker.Time;
}
private void GetTickerItem(PoloniexTicker item)
{
lock (Tickers) {
PoloniexTicker t = Tickers.FirstOrDefault((i) => i.CurrencyPair == item.CurrencyPair);
if (t != null)
{
lock (t) {
t.Assign(item);
t.UpdateHistoryItem();
RaiseTickerUpdate(t);
}
}
else
{
Tickers.Add(item);
RaiseTickerUpdate(item);
}
}
}
public void UpdateTrades(PoloniexTicker ticker)
{
throw new NotImplementedException();
}
void UpdateGrid(PoloniexTicker info)
{
int rowHandle = this.gridView1.GetRowHandle(info.Index);
this.gridView1.RefreshRow(rowHandle);
}