Does this work on Linux as well

[bhavishyagoyal12]

I tried to run this in windows machine it prefectly works but when i tried to run same on Linux Machine i didn't get Level1 Updates ? I am running in Linux using cross over

[Petersoj]

@bhavishyagoyal12 it does indeed run on a Linux machine. It runs flawlessly under Wine (a Windows Emulator). I have a trading algorithm that subscribes to Level 1 data for 1800 tickers and haven't noticed any issues (aside from some bugs that IQFeed is aware of and working to fix right now). I haven't tested the IQconnect.exe program in Crossover, but I imagine that as long as Crossover supports network interfacing with the host machine, then it should work fine. Do you have any code snippets you could share? Were you running all this during market hours? Note that if you're listening to SummaryUpdateField.LAST, then you only receive qualified trades which only happen during market hours and only for round lot trades.

[Petersoj]

First, your System.out.printf lines don't have any object references in the varargs parameters so it's just printing out the string verbatim.
It should look like this:

iqFeed4j.level1().requestWatch("AAPL",
				(fundamentalData) -> System.out.printf("@NQ# most recent %.2f split was on %s.\n", fundamentalData.getSplitFactor1(), fundamentalData.getSplitFactor1Date()),
				(summaryUpdate) -> System.out.printf("NQ trade occurred with %d shares at $%.4f with ", summaryUpdate.getMostRecentTradeSize(), summaryUpdate.getMostRecentTrade()));

And what JDK version are you using? Additionally, can you post the full stack trace of the NPE (NullPointerException)? And are you using the latest IQConnect.exe client?

[bhavishyagoyal12]

sure let me get that

[bhavishyagoyal12]

I am so much thankfull of you. it was version issue of IQfeed

[Petersoj]

Hey no problem! Glad your issue was resolved. Let me know if you need help with anything else 🙂

[bhavishyagoyal12]

sure . Once again thanks a ton :)