This optional parameter allows you to define a Perl function
to modify a subscription charge.
ChargeHook
must return new username, a charging reference and new price. Charging
reference can be undefined. If username is undefined, charging is not done
and request is rejected.
ChargeHook has the
following arguments:
- The current request
- Username
- Id, such as room number, plane seat number or loyalty card number
or other value typically sent as password with a hotspot service
- Price
- Subscription
Here is an example of
ChargeHook:
# Charge mikem with double rate
ChargeHook sub {my $name = $_[1]; my $price = $_[3]; \
return ($name, undef, $price*2);}
