I would like to know whether lightroom sdk 2.0 can send https request. If it is possible please let me know how can i use that because i tried with Lr http but is not working.
I used soap to integrate with light room but is not working .
Please let me know asap.
It certainly can. Here is an excerpt from the documentation:
LrHttp.get ( url, headers, timeout )
Retrieves data over the network using HTTP orGET.LrHttp.post (url, postBody, headers, method, timeout )Sends or retrieves data using HTTP orPOST.
A word of caution though. HTTPS requests will fail if your certificate is self-signed or otherwise invalid.
Also it looks like your question about SOAP integration has already been answered a few days ago. Lightroom doesn't support Lua modules (at least in version 2, I'm not sure whether version 3 is going to offer more flexibility here), so if you're thinking about using lua socket (or any binary module), that won't work.