Websocet subscribeToExchangeDeltas method for many markets

[CheremisinVlad]

Hello. Previously i open this issue #40
I've subscribed for market deltas but only for one market there.
Now I need order book for every pair on exchange.
I tried it like this:

BittrexExchange  exchange = new BittrexExchange();

            getBittrexMarkets().forEach((market)->{

                    exchange.connectToWebSocket(()->{

                        exchange.subscribeToExchangeDeltas(market,null);

                        exchange.onUpdateExchangeState(orderBook->{

    Stream.of(orderBook.getFills()).forEach(fill-> System.out.println(market + fill.getQuantity()));

                        });
                    });   
            });
        

But when i run this code i recieve this error:

ERROR WebSockets [SignalRLoggerDecorator.java:30] HubConnection - Error: com.github.signalr4j.client.InvalidStateException: The operation is not allowed in the 'Disconnected' state

I also tried it this way:

BittrexExchange  exchange = new BittrexExchange();
            exchange.connectToWebSocket(()->{
                getBittrexMarkets().forEach((market)->{
                    exchange.subscribeToExchangeDeltas(market,null);
                    exchange.onUpdateExchangeState(orderBook->{
                        Stream.of(orderBook.getFills()).forEach(fill -> {
                            System.out.println(market + " " + fill.getQuantity());
                        });
                    });
                });
            });

When i run it i get same output for every market(some part of it):

BTC-HYDRO 3349.0
BTC-UPP 3349.0
USD-ADA 3349.0
USD-ZEC 3349.0
USDT-DOGE 3349.0
BTC-ENJ 3349.0
BTC-MET 3349.0

And i tried do it in concurent way but it's also don't work.
Is any way subscribe for more than one market and recieve data simultaneously?
Thanks in advance!

[Ceri Coburn]

You should only register a single event listener for onUpdatedExchangeState and only call connectToWebsocket once. Then call subscribeToExchangeDeltas for each market

[CheremisinVlad]

Thanks a lot. Sorry for stupid question and your wasting efforts.