NAME

       Catmandu::Importer::Wikidata - Import from Wikidata

VERSION

       version 0.06

SYNOPSIS

           catmandu convert Wikidata --ids Q1,P227
           catmandu convert Wikidata --site dewiki --title Wahnsinn

           echo Q1 | catmandu convert Wikidata
           echo Wahnsinn | catmandu convert Wikidata --site dewiki
           echo dewiki:Wahnsinn | catmandu convert Wikidata

           echo Q1 | catmandu convert Wikidata --fix 'retain_field("labels")'

DESCRIPTION

       This Catmandu::Importer queries Wikidata for entities, given by their Wikidata identifier
       ("Q...", "P...") or by a title in some know Wikidata site, such as the English Wikipedia
       ("enwiki"). The entities are either specified as options ("ids", "site", and/pr "title")
       or as line-separated input values. By default, the raw JSON structure of each Wikidata
       entity is returned one by one. Entities not found are returned with the "missing" property
       set to 1 like this:

           { "id": "Q7", "missing": "1" }

       To further process the JSON structure Catmandu::Wikidata contains several Catmandu fixes,
       e.g. to only retain a selected language.

CONFIGURATION

       This importer extends Catmandu::Importer::getJSON, so it can be configured with options
       "agent", "timeout", "headers", "proxy", and "dry". Additional options include:

       api Wikidata API base URL. Default is "http://www.wikidata.org/w/api.php".

       ids A list of Wikidata entitiy/property ids, such as "Q42" and "P19". Use comma, vertical
           bar, or space as separator. Read from input stream if no ids, nor titles are
           specified.

       site
           Wiki site key for referring to Wikidata entities by title. Default is "enwiki" for
           English Wikipedia. A list of supported site keys can be queried as part of
           <https://www.wikidata.org/w/api.php?action=paraminfo&modules=wbgetentities> (unless
           <https://bugzilla.wikimedia.org/show_bug.cgi?id=58200> is fixed).

       title
           Title of a page for referring to Wikidata entities. A title is only unique within a
           selected "site". One can also prepend the site key to a title separated by colon, e.g.
           "enwiki:anarchy" for the entity that is titled "anarchy" in the English Wikipedia.
           Read from input stream if no titles, nor ids are specified.

AUTHOR

       Jakob Voss

COPYRIGHT AND LICENSE

       This software is copyright (c) 2014 by Jakob Voss.

       This is free software; you can redistribute it and/or modify it under the same terms as
       the Perl 5 programming language system itself.