public void The_Bitfinex_URL_Should_Be(string symbolName, CandleTimespan timespan, string expected)
{
var actual = new BitfinexDataReader().GetUrlFrom(new Symbol()
{
Name = symbolName
}, timespan);
Assert.Equal(expected, actual);
}
private IDictionary <string, string> GetParameters(ISymbol symbol, CandleTimespan timespan)
{
var dictionary = new Dictionary <string, string>();
dictionary.Add(symbolKey, symbol.Name);
dictionary.Add(timespanKey, GetTimespanValueFrom(timespan));
return(dictionary);
}
public override string GetUrlFrom(ISymbol symbol, CandleTimespan timespan)
{
var url = TemplateURL;
foreach (var item in GetParameters(symbol, timespan))
{
url = url.Replace(item.Key, item.Value);
}
return(url);
}
public virtual ICandle Read(ISymbol symbol, CandleTimespan timespan)
{
ICandle candle = null;
var url = GetUrlFrom(symbol, timespan);
var request = (HttpWebRequest)WebRequest.Create(url);
request.AutomaticDecompression = DecompressionMethods.GZip;
using (var response = (HttpWebResponse)request.GetResponse())
{
using (var stream = response.GetResponseStream())
{
using (var reader = new StreamReader(stream))
{
candle = GetCandleFrom(reader.ReadToEnd());
}
}
}
return(candle);
}
private string GetTimespanValueFrom(CandleTimespan timespan)
{
switch (timespan)
{
case CandleTimespan.OneMinute:
return("1m");
case CandleTimespan.FiveMinutes:
return("5m");
case CandleTimespan.FifteenMinutes:
return("15m");
case CandleTimespan.ThirtyMinutes:
return("30m");
case CandleTimespan.OneHour:
return("1h");
default:
throw new InvalidCastException("Timespan not recognized");
}
}
public abstract string GetUrlFrom(ISymbol symbol, CandleTimespan timespan);
