Yet Another CPAN Grep

Dancer2-Plugin-HTTP-ContentNegotiation ( V/VA/VANHOESEL/Dancer2-Plugin-HTTP-ContentNegotiation-0.02.tar.gz, VANHOESEL, 2015; MetaCPAN )

Dancer2-Plugin-HTTP-ContentNegotiation/lib/Dancer2/Plugin/HTTP/ContentNegotiation.pm ( view source; MetaCPAN )

meResource->find(param('id'));
        http_choose_media_type (
            'application/json'  => sub { to_json $data },
            'application/xml '  => sub { to_xml $data },
            { default

d2 http_choose_charset

This keyword should only be used with non-binary media-types, like XML or JSON.
It is used to select in what 'encoding' the representation should be delivered.

NOTE: not sure