I want to download a file in nodejs and use it after code example

Example 1: download file nodejs

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

const url = 'www.example.com/image.png'; // link to file you want to download
const path = 'app/assets/my_image_name.xlsx' // where to save a file

const request = http.get(url, function(response) {
    if (response.statusCode === 200) {
        var file = fs.createWriteStream(path);
        response.pipe(file);
    }
    request.setTimeout(60000, function() { // if after 60s file not downlaoded, we abort a request 
        request.abort();
    });
});

Example 2: node js download file to folder

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);
  });
};