Download csv file node.js

Question

I am building an app using node.js and trying to download data as a csv file. I am using json2csv (https://www.npmjs.com/package/json2csv) for this purpose. However, the way I h

Answer 1

Use res.send if you use express.

You have to define a HTTP GET route which looks something like that:

app.get("/pathToYourDownload", function (req, res) {
  json2csv({ data: myCars, fields: fields }, function(err, csv) {
    res.setHeader('Content-disposition', 'attachment; filename=data.csv');
    res.set('Content-Type', 'text/csv');
    res.status(200).send(csv);
  });
});

Answer 2

On express server:

const json2csv = require('json2csv').parse;

const csvString = json2csv(yourDataAsArrayOfObjects);
res.setHeader('Content-disposition', 'attachment; filename=shifts-report.csv');
res.set('Content-Type', 'text/csv');
res.status(200).send(csvString);

On client (otherwise most of the browsers will not download the file, even you will see the proper response in the network panel):

window.open(downloadUrl);