i am trying to get the current price of SPX or SPXW but i am getting error. while trying with request Historical data getting the below error

error :? "It does not support historical data backfill."

?

code snippet:

const contract = {

? symbol: 'SPX',

? secType: 'IND',

? exchange: 'CBOE',

? currency: 'USD'

};

?

ibClient.reqHistoricalData( 1, contract, '', '1 D', '1 min', 'TRADES', 1, 1, false, [] );

?

also i tried with request market data still getting error as "It does not support delta-neutral orders"

?

Thanks in advance

?

const contract = {

? symbol: 'SPX',

? secType: 'IND',

? exchange: 'CBOE',

? currency: 'USD'

};

ib.reqMktData(1, contract, '', false);

?

?

Mark,

Yes, I have been using caffeine-indicator for a while to ensure that. Thanks for your input. It is a bit off topic. I just thought maybe this would be a place where someone has built something similar. Very close to finishing this, but I like your signals suggestion instead. I think that would be much more clean. Going to look into doing that. Hopefully this is my last major hurdle before I am running continuously all day long! Probably not!

Thanks,
Brendan

On Dec 14, 2023, at 3:47 PM, Brendan Lydon <blydon12@...> wrote:

Mark,

Thank you for the swift suggestion. I thought it would be cool to write my own, which I have pretty much done already just working out the kinks, but that 'immortal python' looks cool. I also thought about using the subprocess module with python and still might as I have worked with that extensively.

Ideally, I wanted to use this as an exercise to improve my linux/bash scripting and do it all from scratch as it definitely seems doable. So, I kind of want to do it all from my .sh file and work with loops and such. Have you ever developed something similar in bash?

Thanks,
Brendan

On Dec 14, 2023, at 2:44 PM, Brendan Lydon <blydon12@...> wrote:

Hi,

I have been running an algorithm from a main.exe in a .sh file, pre-compiled. I have python processes I do following the end of the day to get statistics and what not on my models and trades after the successful completion of my main.exe. What I have noticed is oftentimes maybe once per day at random my algorithm will stall and not continue forward in my main while loop. So, I took the liberty of adding a heartbeat to my main loop and am writing to a heartbeat.sts file in my repo every 10 seconds or so (playing with optimal time still). My bash script then sits in a loop the entire time main.exe runs and pulls the latest timestamp from the heartbeat.sts file and gets a time delta from the current time to the latest pulse from the program and will terminate the current main.exe PID and restart a new one if we have not seen a pulse in a while. This loop does this all day as long as my main.exe does not exit gracefully. If it does exit gracefully (@ 4PM EST), it breaks the loop and continues to my EOD statistics. So, my question is has anyone else built something like this "Watchdog" to deal with stalls & reduce downtime? I have made a lot of adjustments with my system logs and initializing of the project when I startup to accomodate this. Also, filling data gaps, etc to accommodate this. I don't mind writing a solution to something and not ever having it execute.

So, I guess I wanted to see if anyone had thoughts or experiences with these types of scripts, where you are constantly keeping things up and running and never being offline. Side note, with all due respect, please refrain from responses like "why is your program stalling? Are you doing sleeps? You need to rethink your design." Firstly, the answer is no to those first 2 questions, and sometimes things just stall. Its not a connection problem, its a computer science problem. Also, I am very pleased with my current and final design...

Thanks