[Freeswitch-users] Using CURL inside a JavaScript.

Hi ! I am developing a simple IVR application using JS. One of the things I want to do when my JS fires is to issue a WS API to fetch some data relevant to the call; wait for the response and use information in the response to process the incoming call. To meet that end, I wrote up a simple JS that issues a CURL request providing appropriate call back function. However, I dont see any callback being fired back to my application. The JS simply proceeds to execute the next instruction. I know my WS returns a string (verified by running the exact same command via a command line). I wanted to know if there is anything I need to do to make the application "wait for the call back". Would appreciate any help. Regards, Venkatesh