How do you stream a csv file into a node web app?

https://www.npmjs.com/package/busboyhttps://www.npmjs.com/package/fast-csv

var Busboy = require('busboy'); // to handle the formvar csv = require('fast-csv');function (req, res) {  var busboy = new Busboy({ headers: req.headers });  busboy.on('file', function(fieldname, file, filename, encoding, mimetype) {    file.pipe(csv())      .on('data', function (data) {        console.log('YAY, just the data I wanted!', data);      });  });  busboy.on('finish', function() {    console.log('Done parsing form!');    res.end();  });  req.pipe(busboy);}

I know that the answer was already accepted, but I had a LOT of pain trying to make the answer's code work properly.In the end, what worked out for me was this, still using fast-csvand busboy:

var Busboy = require('busboy');var parser = csv();function(req, res) {    var busboy = new Busboy({ headers: req.headers });    var result = [];    busboy.on('file', function(fieldname, file, filename, encoding, mimetype) {        file.on("readable", function () {            var data;            while ((data = file.read()) !== null) {                parser.write(data);            }        })        .on("end", function () {            parser.end();        });    });    parser.on("readable", function () {        var data;        while ((data = parser.read()) !== null) {            //console.log(data);            result.push(data);        }    })    .on("end", function () {        console.log("done:",result);        res.json(result);    });    req.pipe(busboy);}