Please find the below article which might be helpful.

https://collaborate.pega.com/discussion/logging-connect-rest-json-request-and-response-tracer

Request, Response and Headers JSON strings are already available in the tracer.

Whenever OOTB activity Rule-Connect-REST.pyInvokeRESTConnector runs, you can take a look at the parameter page in the clipboard and there you will find properties pyRequestHeaders, pyRequestData, pyResponseHeaders and pyResponseData.

Hope this helps!

Is it possible to copy the pyRequestData which is on Parameter page to clipboard property, tried with set option DT but did not work. Any thoughts