NAME

       Business::US::USPS::WebTools - Use the US Postal Service Web Tools

SYNOPSIS

               use Business::US::USPS::WebTools;

               # see subclasses for API details

DESCRIPTION

       *** THIS IS ALPHA SOFTWARE ***

       This is the base class for the WebTools web service from the US Postal Service. The USPS
       offers several services, and this module handles the parts common to all of them: making
       the request, getting the response, parsing error reponses, and so on. The interesting
       stuff happens in one of the subclasses which implement a particular service. So far, the
       only subclass in this distribution is "Business::US::USPS::WebTools::AddressVerification".

       new( ANONYMOUS_HASH )
           Make the web service object. Pass is an anonymous hash with these keys:

                   UserID          the user id provided by the USPS
                   Password        the password provided by the USPS
                   Testing         true or false, to select the right server

           If you don't pass the UserID or Password entries, "new" looks in the environment
           variables USPS_WEBTOOLS_USERID and USPS_WEBTOOLS_PASSWORD.

           If "new" cannot find both the User ID and the Password, it croaks.

           If you pass a true value with the Testing key, the object will use the testing server
           host name and the testing URL path. If the Testing key is false or not present, the
           object uses the live server details.

       userid
           Returns the User ID for the web service. You need to get this from the US Postal
           Service.

       password
           Returns the Password for the web service. You need to get this from the US Postal
           Service.

       url Returns the URL for the request to the web service. So far, all requests are GET
           request with all of the data in the query string.

       response
           Returns the response from the web service. This is the slightly modified response. So
           far it only fixes up line endings and normalizes some error output for inconsistent
           responses from different physical servers.

       is_error
           Returns true if the response to the last request was an error, and false otherwise.

           If the response was an error, this method sets various fields in the object:

                   $self->{error}{number}
                   $self->{error}{source}
                   $self->{error}{description}
                   $self->{error}{help_file}
                   $self->{error}{help_context}

SEE ALSO

       The WebTools API is documented on the US Postal Service's website:

       http://www.usps.com/webtools/htm/Address-Information.htm

SOURCE AVAILABILITY

       This source is part of a SourceForge project which always has the latest sources in CVS,
       as well as all of the previous releases.

               http://sourceforge.net/projects/brian-d-foy/

       If, for some reason, I disappear from the world, one of the other members of the project
       can shepherd this module appropriately.

AUTHOR

       brian d foy, "<bdfoy@cpan.org>"

COPYRIGHT AND LICENSE

       Copyright (c) 2006-2007 brian d foy.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.