The below Code show how to download users data in CSV file. the issue is the output of the data inside the CSV is not organized.

app.js file

  app.get('/export-csv',function(req,res){
      db.query("SELECT * FROM users", function (err, users, fields) {
        if (err) throw err;
        console.log("users:");
    
        const jsonUsers = JSON.parse(JSON.stringify(users));
        //console.log(jsonUsers);
     
        // -> Convert JSON to CSV data
        const csvFields = ['id', 'name', 'shopCode','region'];
        const json2csvParser = new Json2csvParser({ csvFields });
        const csv = json2csvParser.parse(jsonUsers);
     
        //console.log(users);
     
         res.setHeader("Content-Type", "text/csv");
         res.setHeader("Content-Disposition", "attachment; filename=users.csv");
     
         res.status(200).end(csv);
      });
    });

what am I missing, how to make the data organized inside CSV ?