Mojolicious - change response code and content_type

gistfile1.PL

package MyApp::Example;

use strict;
use warnings;
use base 'Mojolicious::Controller';

sub default {
    my $self = shift;

    # to text/plain
    $self->res->headers->content_type('text/plain');
 
    # change status code
    $self->res->code(403);
    $self->render_text('403 in plain text');
}

1;