If the LHS of -> is always $web_services, you could do the following: 
$md_config->{cust_num   } = 'GetCustomerNumber';
$md_config->{description} = 'GetCustomerDescription';

my $field = 'cust_num';
my $meth = $md_config->{$field}
   or die("Unknown field $field\n");
$web_services->$meth();

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In reply to Re: Storing/Calling References to Instance Methods by ikegami
in thread Storing/Calling References to Instance Methods by mlong

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