How to choose an output interface following the address source by using irules

I have two provider Internet connected to F5. I d like to choose one output interface following the source IP local and in case of provider failure, redirect the traffic on the other output interface

Can I use irules

Yes you can.

when CLIENT_ACCEPTED {
    if { [active_members pool_link1] >= 1 } {
        pool pool_link1
    }
    else {
        pool pool_link2
    }
}