Service of chart ( data history with timeframe ) provider

Regarding the XChange API, we lacks of some interfaces to fetch chart history ( ticker data ) on differents timeframes.

Some exchanges provide this kind of data. As example Bittrex provides chart data. A method already exists in BittrexMarketDataServiceRaw : List<BittrexChartData> getBittrexChartData

This method is never used, i guess there are some other in others exchanges.

So, why not creating a method in MarketDataService ?

List<ChartData> getChartData(ChartParams)

ChartData
  private final Date timeStamp;
  private final BigDecimal open;
  private final BigDecimal close;
  private final BigDecimal high;
  private final BigDecimal low;
  private final BigDecimal volume;
  private final BigDecimal baseVolume;
  private final String timeframe 

[timmolter]

Yeah, we could add a timeframe to Ticker where 24 Hr is the default.

[timmolter]

yes. And just set it to 24hr as default