gistfile1.js

// example of how you do stuff as user x
route('/dashboard', function() { loadDashboard(getSession('user_id')); });

// example of link to become another user
// make sure it's admin only
route('/changelink/:userid', requireAdmin, function(req) {
    setSession('is_faking', getSession('user_id'));
    setSession('user_id', req.params.userid);
});


// in template
{{ if getSession('is_faking') }}
    <a href="/fakelogout">go back to admin</a>
{{ endif }}

route('/fakelogout', function(req) {
    // don't forget to check...
    if (!getSession('is_faking')) return;

    setSession('user_id', getSession('is_faking'));
    unsetSession('is_faking');
});