Different pool, but need to pass the query string along

Do you want to preserve the entire query string or just one parameter? Do you need to rewrite the Host header value to widgets.search.com?

Here is an example which shows a few options. Note that you can "hide" the rewriting by not sending an HTTP redirect. The client won't see the change, assuming the web app does not use the rewritten URI in response headers or content it sends to the client.

 
 when CLIENT_ACCEPTED { 
  
     Save the VIPs default pool name 
    set default_pool [LB::server pool] 
 } 
 when HTTP_REQUEST { 
  
     Check requested URI 
    switch -glob [HTTP::uri] { 
  
       "/widget-search/*" { 
  
           Request needs to go to second pool 
  pool widget_pool 
  
   Rewrite URI to /search/virtualsearch?q= with the original  
     value for the q parameter preserved 
  HTTP::uri "/search/virtualsearch?q=[URI::query [HTTP::uri] q] 
  
   Or... 
  
   Rewrite the URI to /search/virtualsearch with the original query string 
  HTTP::uri "/search/virtualsearch?[HTTP::query] 
  
   Rewrite the Host header to widgets.search.com 
  HTTP::header replace Host "widgets.search.com" 
       } 
       default { 
  
           Use the VIPs default pool 
  pool $default_pool 
       } 
    } 
 } 
 

Aaron