HTTP request per second limit

when RULE_INIT {

set static::allowedRate 10

}

when HTTP_REQUEST {

set count [table loolkup -notouch [HTTP::method] ]
if { $count  eq "" } {
   Add entry into table with count as 1 for 1 second
   table add [HTTP::method] 1 1
} elseif { $count < $static::allowedRate } {
   Increment count
   table incr -notouch [HTTP::method] 1
} else {
   No of HTTP request exceeded per second do your action here 
   HTTP::respond 503 
}

}

--Formatted