Convert and download html to pdf without saving file

node js
convert html to pdf
pdf
download pdf
without saving

Below is the module for convert html to pdf file "html-pdf", 

Install the html-pdf

$ npm install -g html-pdf

example for convert html to pdf 

var pdf = require('html-pdf');
var options = { format: 'Letter' };
 
pdf.create('<h1>Welcome</h1>', options).toFile('./sample.pdf', function(err, res) {
  if (err) return console.log(err);
  console.log(res);
});

Below is the api code for download file without saving,

router.get('/downloadfile', function(req, res, next) {
  pdf.create("<h1 style='text-align:center'>Hi Welcome</h1><br><img src='https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png'>").toStream(function (err, stream) {
    if (err) {
        console.log(err);
    }
    res.writeHead(200, {
        'Content-Type': 'application/force-download',
        'Content-disposition': 'attachment; filename=file.pdf'
    });
    stream.pipe(res);
  });
});

Basically, it will not work in ajax calls, it will work only when page load, from the client side we need to call the API,  like 

window.open('https://www.domain.com//downloadfile','download');

 

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