I have some route, and it works and render me result

router.get('/', (req, res) => {
    const data = bigCommerce.verify(req.query['signed_payload']);
    res.render('load', { title: 'Welcome!', data: JSON.stringify(data, ['store_hash'])}); 
});

module.exports = router;

But i need get result JSON.stringify(data, ['store_hash']) and export him to the other file like some constant.

How can i do it?