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.IX Title "Catmandu::Importer::Wikidata 3pm"
.TH Catmandu::Importer::Wikidata 3pm "2021-01-07" "perl v5.32.0" "User Contributed Perl Documentation"
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.SH "NAME"
Catmandu::Importer::Wikidata \- Import from Wikidata
.SH "VERSION"
.IX Header "VERSION"
version 0.06
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    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 \*(Aqretain_field("labels")\*(Aq
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This Catmandu::Importer queries Wikidata for entities, given by their
Wikidata identifier (\f(CW\*(C`Q...\*(C'\fR, \f(CW\*(C`P...\*(C'\fR) or by a title in some know Wikidata
site, such as the English Wikipedia (\f(CW\*(C`enwiki\*(C'\fR). The entities are either
specified as options (\f(CW\*(C`ids\*(C'\fR, \f(CW\*(C`site\*(C'\fR, and/pr \f(CW\*(C`title\*(C'\fR) or as line-separated
input values. By default, the raw \s-1JSON\s0 structure of each Wikidata entity is
returned one by one. Entities not found are returned with the \f(CW\*(C`missing\*(C'\fR
property set to \f(CW1\fR like this:
.PP
.Vb 1
\&    { "id": "Q7", "missing": "1" }
.Ve
.PP
To further process the \s-1JSON\s0 structure Catmandu::Wikidata contains several
Catmandu fixes, e.g. to only retain a selected language.
.SH "CONFIGURATION"
.IX Header "CONFIGURATION"
This importer extends Catmandu::Importer::getJSON, so it can be configured
with options \f(CW\*(C`agent\*(C'\fR, \f(CW\*(C`timeout\*(C'\fR, \f(CW\*(C`headers\*(C'\fR, \f(CW\*(C`proxy\*(C'\fR, and \f(CW\*(C`dry\*(C'\fR. Additional
options include:
.IP "api" 4
.IX Item "api"
Wikidata \s-1API\s0 base \s-1URL.\s0 Default is \f(CW\*(C`http://www.wikidata.org/w/api.php\*(C'\fR.
.IP "ids" 4
.IX Item "ids"
A list of Wikidata entitiy/property ids, such as \f(CW\*(C`Q42\*(C'\fR and \f(CW\*(C`P19\*(C'\fR. Use
comma, vertical bar, or space as separator. Read from input stream if no
ids, nor titles are specified.
.IP "site" 4
.IX Item "site"
Wiki site key for referring to Wikidata entities by title. Default is
\&\f(CW\*(C`enwiki\*(C'\fR 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).
.IP "title" 4
.IX Item "title"
Title of a page for referring to Wikidata entities. A title is only unique
within a selected \f(CW\*(C`site\*(C'\fR. One can also prepend the site key to a title
separated by colon, e.g. \f(CW\*(C`enwiki:anarchy\*(C'\fR for the entity that is titled
\&\*(L"anarchy\*(R" in the English Wikipedia. Read from input stream if no titles, nor
ids are specified.
.SH "AUTHOR"
.IX Header "AUTHOR"
Jakob Voß
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2014 by Jakob Voß.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.