CGI::Expand in Mojolicious::Controller

gistfile1.pl

use Mojo::Base 'Mojolicious';
use CGI::Expand;

sub startup
{
   my $self = shift;
   $self->hook(before_dispatch => sub {
        my $c = shift;
        my $hash = CGI::Expand->expand_hash($c->req->params->to_hash);
        $c->param($_ => $hash->{$_}) for keys %$hash;
    });
}