BarsRequest and Sync Update and MarketData

[cls71]

Hello,

I am storing bars to memory using BarsRequest objects by listening to the BarsRequest.Update event.

At the same time I'm listening to the Intrument.MarketData.Update event to receive Level1 type information and to be able to accumulate Bid and Ask information in each bar.

The main problem is that both listeners are out of sync. When a bar ends sometimes Level1 events have not arrived yet, and other times there are more.

Obviously, this problem is solved in the core of NinjaTrader. Please, could you give me some clue to solve this problem in my code? (I want to avoid developing a synchronization algorithm from scratch).

Thanks in advance.

[NinjaTrader_PatrickH]

Hello cls71,

Thank you for your patience.

How we build the bars internally would be proprietary. However, if you can provide the code you use and more detail we can look into this with you.

So we are expecting one MarketData update to occur when the BarsRequest closes?
How are you closing the Bars on BarsRequest?

If possible can you provide the code you are using here or send it to platformsupport[at]ninjatrader[dot]com with 'ATTN: Patrick H' in the subject line and a reference to this thread?

I look forward to your response.

[cls71]

Hello Patrick,
I sent you an email with the requered code. Thanks for your support.

[NJA_MC]

Hello Patrick,
I sent you an email with the requered code. Thanks for your support.

Let me know if you solve this as I had this same problem and abandoned the work until a solution was found.

[cls71]

I already found the cause of the issue, The MarketData.Update event subscription must be made within the dispatcher requesting the BarsRequest object. Then the sync between BarUpdate and MarketData works fine.