Rate limiting per IP and URI

Hi, I need to come up with a solution for rate limiting on a VS in our ASM so a source IP will be limited for specified URI's with 3 requests per minute, 10 requests per hour.

I got this iRule from the web:

when RULE_INIT { 
    set static::maxRate 3 
    set static::timeout 60 
} 
when HTTP_REQUEST { 
        if { [class match [HTTP::uri] contains URIs_to_throttle] } { 

        whitelist
        if { [class match [IP::client_addr] equals Whitelist_IPs] }
        {
        return
        }
        End-of-whitelist

        set methodCount [table key -count -subtable [IP::client_addr]] 
        log local0. "[IP::client_addr]: methodCount=$methodCount" 
        if { $methodCount < $static::maxRate } then { 
            incr methodCount 1 
            log local0. "Adding entry for [IP::client_addr]"
            table set -subtable [IP::client_addr] [clock clicks] "1" indef $static::timeout
        } else {
            log local0. "[IP::client_addr] exceeded max HTTP requests per second"
            HTTP::respond 429 content "Request blockedExceeded requests limit."
            return
        }
    }
}

How should I modify this iRule so it will also include the 10 requests per hour limit ?

And second, is this the best approach for rate limiting? future demands will include a higher number of URI's and different time limits + global limits (not only per IP) for each URI, which will make the iRule handling and maintenance too complicated.

Thank you.