How to export csv nodejs

Here is what I did:

1. Use json2csv to build csv data from mongodb data

var json2csv = require('json2csv');
var fields = ['name', 'phone', 'mobile', 'email', 'address', 'notes'];
var fieldNames = ['Name', 'Phone', 'Mobile', 'Email', 'Address', 'Notes'];
var data = json2csv({ data: docs, fields: fields, fieldNames: fieldNames });

2. Send csv data to client

res.attachment('filename.csv');
res.status(200).send(data);