CPAN::Groonga

arams{'json_db'} ) {
		my $data = do {
			local $/;
			open my($fh), '<:raw', $params{'json_db'}
				or die "could not read file <$params{json_db}>\n";
			<$fh>;
		};
		state $rc = require JSON;

		my

 $decoded = eval { JSON::decode_json($data) };
		die "could not decode JSON from <$params{json_db}>: @_\n" unless defined $decoded;
		return $decoded;
	}

	my $rc = eval { require CPANSA::DB };
	if (