Dear API Support,

I have a strategy which subscribes to a custom indicator and calculates values for this indicator for deciding buy and sell. I use an Object[] array to get the indicator results by shift, like in the example bellow.

Object[] resultByShift = indicators.calculateIndicator(selectedInstrument, selectedPeriod, new OfferSide[] { OfferSide.BID }, indicatorName, new IIndicators.AppliedPrice[] { IIndicators.AppliedPrice.CLOSE }, optionalInputArray, shift);

My question is, can a pass a custom 2 pips bar period in the method above for the calculation of my custom indicator? I understand from wikki that I need to define that custom period and to subscribe to the specific RangeBarListener but unfortunately I couldn't make it work.

I need to run this strategy in LIVE JForex platform which now has API version 2.6.33

Reading the previous forum posts, I found this possible solution bellow which doesn't seem to work on my live jforex plaform:

IFeedDescriptor feedDescriptor = new FeedDescriptor();
feedDescriptor.setDataType(DataType.PRICE_RANGE_AGGREGATION);
feedDescriptor.setOfferSide(OfferSide.BID);
feedDescriptor.setInstrument(Instrument.EURUSD);
feedDescriptor.setPriceRange(PriceRange.valueOf(priceRangePips));

Object[] resultByShift = indicators.calculateIndicator(feedDescriptor, new OfferSide[] { OfferSide.BID }, indicatorName, new IIndicators.AppliedPrice[] { IIndicators.AppliedPrice.CLOSE }, optionalInputArray, shift);

Can you please offer some solution?

Thank you very much in advance!
Iulian

You have 2 options:

1. Use Standalone API, which uses JForex-API 2.6.53 and to which you can use your LIVE login. JForex-API 2.6.53 supports range bar feeds, range bar history and indicator calculation on range bar feeds.
2. Use JForex LIVE Client which uses JForex-API 2.6.33 and virtually does not support range bars from strategy - you have to do all the necessary calculations yourself.

If you choose the latter, note that there is no range range bar feed available from strategy in JForex-API 2.6.33 - thus if you want to work with range bars on that version you need to build them from ticks yourself + calculate indicator on price array by managing yourself the inputs, optional inputs and outputs, here is an example strategy which does that:

• Builds necessary amount of historical range bars for indicator calculation (please note that for indicators like EMA you will need more values, see unstablePeriod description in https://www.dukascopy.com/wiki/#Indicato ... icatorInfo).
• Calculates indicator on price array.