How to download a file with Node.js (without using third-party libraries)?

Question

How do I download a file with Node.js without using third-party libraries?

I don\'t need anything special. I only want to download a file from a giv

Answer 1

Don't forget to handle errors! The following code is based on Augusto Roman's answer.

var http = require('http');
var fs = require('fs');

var download = function(url, dest, cb) {
  var file = fs.createWriteStream(dest);
  var request = http.get(url, function(response) {
    response.pipe(file);
    file.on('finish', function() {
      file.close(cb);  // close() is async, call cb after close completes.
    });
  }).on('error', function(err) { // Handle errors
    fs.unlink(dest); // Delete the file async. (But we don't check the result)
    if (cb) cb(err.message);
  });
};

Answer 2

We can use the download node module and its very simple, please refer below https://www.npmjs.com/package/download

Answer 3

Without library it could be buggy just to point out. Here are a few:

• Can't handle http redirection, like this url https://calibre-ebook.com/dist/portable which is binary.
• http module can't https url, you will get Protocol "https:" not supported.

Here my suggestion:

• Call system tool like wget or curl
• use some tool like node-wget-promise which also very simple to use. var wget = require('node-wget-promise'); wget('http://nodejs.org/images/logo.svg');

Answer 4

You can try using res.redirect to the https file download url, and then it will be downloading the file.

Like: res.redirect('https//static.file.com/file.txt');