I have the following post that gets a user's selection from a 
page then looks up the corresponding record for the selection.


 post '/mypage' => sub { # let user make a selection
    
    my $select_id = params->{sportselect};
    
    print "\n\nLooks Like They Selected No: $select_id\n\n";



    # take them to the add_sport (but somehow with selected no
    hook 'before' => sub {
         var sport_id => $select_id;
         request->path('/sport_add')
    };

}

get '/sport_add' => sub {

    my ($selID) = splat; # 
    
    print "In sport_add we got: $selID as the chosen number\n";
    
}