//------------------ helper methods -------------------
private static long GetTimeTrade(string url, out int id)
{
Thread.Sleep(100);
var requester = new PublicKeyRequiredRequester();
var response = requester.Request(url, Resources.PUBLIC_KEY);
using (Stream stream = response.GetResponseStream())
{
StreamReader sr = new StreamReader(stream);
string s = sr.ReadToEnd();
List <StockExchenge.MarketTradesHistory.Trade> trades = null;
try
{
trades = JConverter.JsonConver <List <StockExchenge.MarketTradesHistory.Trade> >(s);
}
catch (Exception)
{
Console.WriteLine($"Response: {s}");
}
if (trades?.Count > 0)
{
var tradeFirst = trades.First();
id = tradeFirst.ID;
return(tradeFirst.Time);
}
else
{
Console.WriteLine($"NOT FOUND");
}
id = 0;
return(0);
}
}
public void GetDateTrade()
{
var requester = new PublicKeyRequiredRequester();
var fromIdStart = 0L;
var isFoundtrades = true;
while (isFoundtrades)
{
var response = requester.Request(GetUrl(PAIR, fromIdStart), Resources.PUBLIC_KEY);
using (Stream stream = response.GetResponseStream())
{
StreamReader sr = new StreamReader(stream);
string s = sr.ReadToEnd();
List <StockExchenge.MarketTradesHistory.Trade> trades = null;
try
{
trades = JConverter.JsonConver <List <StockExchenge.MarketTradesHistory.Trade> >(s);
}
catch (Exception)
{
Console.WriteLine($"Response: {s}");
break;
}
if (trades?.Count > 0)
{
var tradeFirst = trades.First();
var tradesLast = trades.Last();
Console.WriteLine($"STSRT TIME {tradeFirst.ID}: {tradeFirst.Time.UnixToDateTime()}");
Console.WriteLine($"FINISH TIME {tradesLast.ID}: {tradesLast.Time.UnixToDateTime()}");
}
else
{
Console.WriteLine($"NOT FOUND");
isFoundtrades = false;
}
}
fromIdStart += LIMIT;
Thread.Sleep(1000);
}
}
/// <summary>
/// Скачиваем все последователно
/// </summary>
/// <returns></returns>
private async Task <int> LoadAll()
{
return(await Task.Run(() =>
{
OnLoadStateEvent("TradesHistory: START");
var url = GetUrl();
var requester = new PublicKeyRequiredRequester();
IsActiveLoad = true;
var countRequest = 0;
while (IsActiveLoad)
{
countRequest++;
try
{
var response = requester.Request(GetUrl(), Resources.PUBLIC_KEY);
using (Stream stream = response.GetResponseStream())
{
StreamReader sr = new StreamReader(stream);
string s = sr.ReadToEnd();
var trades = JConverter.JsonConver <List <StockExchenge.MarketTradesHistory.Trade> >(s);
var tradesDB = new List <DataBaseWork.Models.TradeHistory>();
foreach (var trade in trades)
{
if (dateEndUnix.HasValue && trade.Time > dateEndUnix.Value)
{
IsActiveLoad = false;
OnLoadStateEvent($"TradesHistory загрузка завершена: время последней загруженной сделки = {trade.Time.UnixToDateTime()}");
break;
}
tradesDB.Add(new DataBaseWork.Models.TradeHistory()
{
TradeId = trade.ID,
Pair = pair,
Price = trade.Price,
Qty = trade.Qty,
Time = trade.Time,
QuoteQty = trade.QuoteQty,
IsBestMatch = trade.IsBestMatch,
IsBuyerMaker = trade.IsBuyerMaker
});
}
tradeHistoryBuffer.AddRange(tradesDB);
fromId += trades.Count(); // альтернатива: max Id или last Id
var statusCode = (int)response.StatusCode;
if (statusCode == 418 || statusCode == 429)
{
var secondSleep = 0;
var headers = response.Headers;
for (int i = 0; i < headers.Count; i++)
{
if (headers.GetKey(i).ToLower() == "retry-after")
{
int.TryParse(headers[i], out secondSleep);
OnLoadStateEvent($"TradesHistory retry-after header: secondSleep = {secondSleep}");
}
}
if (secondSleep == 0)
{
secondSleep = 60;
}
Thread.Sleep(secondSleep * 1000);
OnLoadStateEvent($"Status Code: {statusCode}; secondSleep = {secondSleep * 1000}");
}
else if (statusCode == 200)
{
if (trades.Count == 0)
{
OnLoadStateEvent($"TradesHistory statusCode: {statusCode}. trades.Count == 0");
break;
}
if (countRequest % 100 == 0)
{
OnLoadStateEvent($"TradesHistory time load: {trades.Last().Time.UnixToDateTime()}");
}
}
else
{
OnLoadStateEvent($"TradesHistory: STOP (statusCode: {statusCode})");
return -1;
}
}
}
catch (Exception ex)
{
// запись лога в БД
OnLoadStateEvent($"TradesHistory error: возможно указана неверная пара.");
return -1;
}
}
tradeHistoryBuffer.Save();
OnLoadStateEvent("TradesHistory: STOP");
return 1;
}));
}