node mongoose connection error

data gets submitted to the database, but instead of listing the new data everything just shuts down with net::ERR_CONNECTION_REFUSED

    app.post('/api/todos', function(req, res) {
    todo.create({
        text : req.body.text,
        done : true
    }, function(err, todo) {
        if (err) res.send(err);
        todo.find(function(err, todos){
            if(err)
                res.send(err)
            res.json(todos);
        });
    });
});

Data gets submitted to db, so that confuses me even more.