NAME

       Catmandu::Importer::CrossRef - Package that imports data form CrossRef API

SYNOPSIS

         use Catmandu::Importer::CrossRef;

         my %attrs = (
           doi => '<doi>',
           usr => '<your-crossref-username>',
           pwd => '<your-crossref-password>',
           fmt => '<xsd_xml | unixref | unixsd | info>'
         );

         my $importer = Catmandu::Importer::CrossRef->new(%attrs);

         my $n = $importer->each(sub {
           my $hashref = $_[0];
           # do something here
         });

DESCRIPTION

       This Catmandu::Importer imports data from the CrossRef API given a DOI.

CONFIGURATION

       base
           Base url of the API. Default is to <http://doi.crossref.org/search/doi>.

       doi Required. The DOI you want data about.

       usr Required. Your CrossRef username. Register first!

       fmt The optional output format. Default is unixref <http://help.crossref.org/unixref-
           query-result-format>.  Other possible values are unixsd
           <http://help.crossref.org/unixsd>, and xsd_xml <http://help.crossref.org/deprecated_q>
           (deprecated).

SEE ALSO

       Catmandu::Importer::DOI is an older version of this module.

       CrossRef also provides DOI data in RDF, which can be imported with Catmandu::RDF:

           use Catmandu::Importer::RDF;
           my $doi = "10.2474/trol.7.147";
           my $url = "http://dx.doi.org/$doi";
           my $rdf = Catmandu::Importer::RDF->new( url => $url )->first;