selective HTTP_RESPONSE_DATA

Hi,

You can create datagroup (aka a class) containing the URI's or URI fragments that you want to collect the response data for. For a datagroup, the type would be string and it would look like this in the bigip.conf:

 
 class my_uris { 
    "/uri1" 
    "/uri2" 
    "/uri3" 
 } 
 

You could then use matchclass to check if the requested URI matches the class:

 
 when HTTP_REQUEST { 
  
     Check if the requested URI is part of the class 
    if {[matchclass [HTTP::uri] starts_with $::my_uris]}{ 
  
        Track that we want to collect the response data 
       set collect_response 1 
    } else { 
        Track that we do not want to collect the response data 
       set collect_response 0 
    } 
 } 
 when HTTP_RESPONSE { 
  
     Check if we're collecting the response 
    if {$collect_response}{ 
    ... 
    } 
 } 
 

If you're replacing strings within the response payload, it would be faster/more efficient to use a stream profile and the STREAM:: commands to do it. For more info on the STREAM:: commands, you can check the wiki page (Click here).

Aaron