[Freeswitch-users] filter json cdrs params before pass it as post request

Hello, How can i filter many of the parameters from json cdrs before passing it as http request to my web server? Because the default json cdrs string is having hell lot of parameters and i am not using that many so if i get only my required params on the web server side and server side script will have less load to parse unnecessary params. So how to filter out not required params from json cdrs string before pass it as post request to web server.