User ID based pool selection

This is an example for doing it with POST data check:

when CLIENT_ACCEPTED {
set default_pool [LB::server pool]
}

when HTTP_REQUEST {
    set login 0
    set logout 0
    switch [HTTP::path] {
        "/login" {
            if {[HTTP::method] equals POST} {
                set login 1
                set pool $default_pool 
                if {[HTTP::header exists "Content-Length"] && [HTTP::header "Content-Length"] <= 1048576}{
                    set content_length [HTTP::header "Content-Length"]
                } else {
                    set content_length 1048576
                }
                 Check if $content_length is not set to 0
                if {($content_length > 0)} {
                    HTTP::collect $content_length
                }
            }
        }
        "/logout" {
        set logout 1
            if {[set cookie_pool [HTTP::cookie value selectpool]] ne ""} {
                set pool $cookie_pool
            } else {
                set pool $default_pool 
            }
        }
        default {
            if {[set cookie_pool [HTTP::cookie value selectpool]] ne ""} {
                set pool $cookie_pool
            } else {
                set pool $default_pool 
            }
        }
    }
    pool $pool
}

if HTTP_REQUEST_DATA {
    if {$login}{
        if {HTTP::payload contains "example.com"}{
          set pool test1
        } else {
          pool $default_pool
        }
        pool $pool
    }
    HTTP::release
}

when HTTP_RESPONSE {
    if {$logout} {
        HTTP::header insert "Set-Cookie" "selectpool=$pool;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/;secure"
    } elseif {$pool ne $default_pool}{
        HTTP::header insert "Set-Cookie" "selectpool=$pool;path=/;secure"
    }
}