I have a Perl callback script that is used to check whether a payment made by a customer to a financial company has been accepted or not. The customer makes a credit card payment to this company, it sends me details of the transaction and my callback script returns this information to the company so that it can verify it and then pass back a note of whether the transaction was approved or rejected. I'm using LWP::UserAgent to contact the company's server.
When I receive the information back I first of all check whether the response is 'is_error'. I see that this doesn't tell me whether there was a problem at my end or at the company's, and that there are two alternative responses, 'is_server_error' and 'is_client_error', that do distinguish. However the HTTP::Status
manpage says that these are not exported by default. My question is - what do I have to do if I want to test for either of these responses?