10/31/2023 0 Comments Ib insyncOnly if you wanted different behavior for different contracts would you drop down to this level more granular of barlist instance events. Quick response here as constrained on time, but you really don't need to worry about using multi threads with ibinsync, it is single threaded and utilizes asyncio to run concurrently via cooperative multitasking instead of preemptive multitasking that multi threading gives you when your threads are controlled by the OS. But if all your barUpdate callbacks are the same there is probably a more generic event on the ib instance itself (which is `barUpdateEvent`), instead of using the granular barlist instance callbacks. Regarding your snippet, it looks fine to me besides the first one, don't call the function you are setting as the callback, do it like you did the 2nd 2 times. IB-insync can be used in a fully interactive, exploratory way with live data fromwithin a Jupyternotebook. ![]() So therefore you should already have reference to which bars instance the callback is receiving. def lastliveprice (ib,symbolin,exchangein,currencyin): contractStock (symbol. This will be single threaded, so I can use a global variable for ib. That list is what is returned by `reqRealTimeBars()`, and it actually has reference to the contract, you should be able to do this: ``` bars1 = ib.reqRealTimeBars(Stock('AAPL', 'SMART', 'USD'), 5, 'TRADES', False) assert ntract = Stock('AAPL', 'SMART', 'USD') ``` This should be the same "bars" instance that is passed to the `onBarUpdate` callback. I'm trying to get the last price for multiple symbols using ibinsync package, but I don't know how to pass the ib object to the function, and the last price returned from the function is nan. Part I: Establish connection to the broker. ![]() Everytime a user starts a new session with. ibinsync, check this out): from ibinsync import IB, Stock, Option from ibinsync import util. ib_insync actually takes care of that mapping for you via its `reqId2Bars` dictionary: this maps reqId to lists of Bars (actually instances of RealTimeBarList), similiar to what I described below. The insync user group is the place to discuss IB-insync and anything related to it. from ibinsync import ib IB() ib.connect127.0.0. Under the covers this IB EWrapper is getting called on bar updates: It's first argument is `reqId`, that `reqId` is the request ID from the call to `reqRealTimeBars`. Well I mispoke a little bit, ib_insync actually handles a lot of this for you.
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