CPAN::Groonga

 Import data into Solr
    $ catmandu import JSON to Solr  < data.json

    # Export data from ElasticSearch
    $ catmandu export Solr to JSON > data.json

    # Export only one record
    $ catmandu

 Import data into Solr
    $ catmandu import JSON to Solr  < data.json

    # Export data from ElasticSearch
    $ catmandu export Solr to JSON > data.json

    # Export only one record
    $ catmandu

     $_[0]->url,
        {
            autocommit     => 0,
            default_params => {wt => 'json'},
            agent => LWP::UserAgent->new(keep_alive => $self->keep_alive),
        }
    );
}