How use BIG-IP to capture HTTP request and response

Hi all,

 

I can use HTTP::collect & HTTP::payload to get full content https://clouddocs.f5.com/api/irules/HTTP__collect.html

 

But when I write to log by "log local0. "$payload". It's not enough content

 

May I write the $payload to a file on big-ip?

 

Thanks

 

Phong