equest failed';
my $res_params = Net::OAuth2::Profile::WebServer::_parse_json($res->content)
or die 'parse_json for refresh_token response failed';
$self->access_token($res_params);
}
res->as_string;
my $res_params = Net::OAuth2::Profile::WebServer::_parse_json($res->content)
or die 'parse_json for userinfo response failed';
return $res_params;
}
sub sign_request