I see there is IQFeedDataQueueHandler in LEAN. First i think i can use it for realtime trading and backtesting. After a short search i see we can not use it for backtesting. And decide to write one.

After work on an IQFeed api documentation. I see almoust all necessary codes are inside LEAN already. So i wrote IQFeedDataDownloader under ToolBox project and do some little changes on an existing codes. It's working fine.

I see some others persons asking IQFeed data downloader and i want to share this downloader with others. But i'm not github person and dont know how can i share my codes from there and hesitate do something wrong action.

Is there any other way for contribute to project? Or i have to learn that how can i do that from github?