param-handler.js

app.param('entry_id', (req, res, next, entry_id) => {    
    getDataById(entry_id)
        .then((data) => {
            req.metadata = {
                info: 'data is received',
                event: 'data.received'
            };
            
            req.result = data;

            next();
        })
        .catch(next);
});