how to get body of an http GET request

I am using proxygen and need to get the body of a HTTP "GET" request. I have to use the curlclient provided in the sample httpclient. Now, I have to use the present api of the library. But the curlclient is based on 2 classes: HTTPConnector and HTTPTransaction. Both of them dont have any function that I have found that can return body of the message. So, is there a way to do so? How can I do this?