How to check a receive response from server in artillery ws

Question

In my yml file, unable to check the receive response from ws server and how i print that. Would you please help me to out from this problem. is it available ? to check the receive response from web socket server in artillery.

   capture:  
     json: "$.fooBody"
     as: "fooBody"
#- log: "{{statusCode}} => {{ fooBody }}"        
- log: "data: {{ fooBody }}"   

In above script i used but not works for me.

I want to check the received data from server and send the same data to server. after run the artillery file it shows the

• data : undefine