Buying 1000 FRA.IDX and then sell 1000 looks like this in the messages window:

2016-04-27 10:20:03 Partial fill: 440 of 1000 @ 4542 for #407215719 SELL 440 FRA.IDX/EUR @ MKT MAX SLIPPAGE 0.05 - Position #106339308
2016-04-27 10:20:03 Order ACCEPTED: #407215719 SELL 1000 FRA.IDX/EUR @ MKT MAX SLIPPAGE 0.05 - Position #106339308
2016-04-27 10:19:54 Order FILLED at 4543.8494 (#407215600 BUY 1000 FRA.IDX/EUR @ MKT) - Position #106339308
2016-04-27 10:19:54 Order ACCEPTED: #407215600 BUY 1000 FRA.IDX/EUR @ MKT - Position #106339308

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How to query the "Partial fill: 440 of 1000" in the api? Absolutely nothing indicate the partial fill size?

I would expect order.getCloseHistory()[0].getAmount() to be 440 (the partial closed amount), but it is not, it is 1000.

Still no clue how to get the actual fill amount, especially if there are multiple partial fills on the same order.
Maybe you should add method "getFilledAmount()" to ICloseOrder, or how else this info can be acquired?

Still looking query the partial fills through the jforex api, both for realtime and historical.
Can the support show how it is done?

Hello,

As far as we understood, you would like to see partial amount of partially submitted order.
Look at example how to do it easily:

    public void getFillOrders(List<IOrder> orderList) {
        for (IOrder order : orderList) {
            console.getOut().println("Order amount: " + order.getRequestedAmount());
            for (IFillOrder o : order.getFillHistory()) {
                console.getOut().println("Order ID: "+ order.getId()+" Order Label: " + order.getLabel());
                console.getOut().println("Fill: " + o.getAmount());
            }

            for(ICloseOrder o : order.getCloseHistory()) {
                console.getOut().println("Close: " + o.getAmount());
            }
        }
    }

Good luck and have a nice day