Irule for an URI redirection

Thanks Leonorodo for helping me. For some reason these irule are not working as expected while executing the traffic flow:

==============================irule 2========To replace the URI to the server

when HTTP_REQUEST {

    if {[string tolower [HTTP::uri]] starts_with "/resource1"}{

        set newuri [string map -nocase {"/provision" "resource2"}[HTTP::uri]]

        HTTP::uri $newuri

        pool POOL1

        }

    }

====================================

===============irule 3================To redirect back to the client with an new URI value for further communications

===================================

      when HTTP_REQUEST {

         set NEW_URI "/resource2"

           switch -glob [string tolower [HTTP::uri]] {

             "/resource1" {

                   HTTP::redirect 301 "https://[HTTP::host]$NEW_URI"

             }

            }

       }

=========================================

Could you please help me to fix the issue?

Regards,

Thiyagu