how to download pdf using NodeJS and send it to the client?

i found the solution :

exports.sendPdf = function(req, res) {  var donneRecu = req.body;  console.log(donneRecu['lien']);  var url = donneRecu['lien']; //pdf link  http.get(url, function(response) {      var chunks = [];      response.on('data', function(chunk) {          console.log('downloading');          chunks.push(chunk);      });      response.on("end", function() {          console.log('downloaded');          var jsfile = new Buffer.concat(chunks).toString('base64');          console.log('converted to base64');          res.header("Access-Control-Allow-Origin", "*");          res.header("Access-Control-Allow-Headers", "X-Requested-With");          res.header('content-type', 'application/pdf');          res.send(jsfile);      });  }).on("error", function() {      callback(null);  }); }

next in my angular controller:

var pdf = $scope.base64ToUint8Array(data);    PDFJS.getDocument(pdf).then(functiongetPdfHelloWorld(_pdfDoc) {$scope.pdfDoc = _pdfDoc;$scope.renderPage($scope.pageNum); });

I too faced the same situation and the below code helped me.

var fs = require("fs");var file = fs.createReadStream('./public/modules/datacollectors/output.pdf');    var stat = fs.statSync('./public/modules/datacollectors/output.pdf');    res.setHeader('Content-Length', stat.size);    res.setHeader('Content-Type', 'application/pdf');    res.setHeader('Content-Disposition', 'attachment; filename=quote.pdf');    file.pipe(res);

Hope it helps.