Download file with Chrome using WebDriverJS

README.md

Install

$ git clone https://gist.github.com/64a2603eca56df1baa835f64c8297472.git download && cd download
$ npm install

Usage

1. Start server (in a shell):

   $ npm run server

2. Run script (in another shell):

   $ npm start

file.txt

test

index.html

<a href="file.txt" download>Download File</a>

index.js

require('chromedriver');

const { access } = require('fs').promises;
const { homedir } = require('os');
const { resolve } = require('path');
const { Builder, By } = require('selenium-webdriver');

const DOWNLOAD_PATH = resolve(homedir(), 'Downloads/file.txt');

(async function() {
  let driver;

  try {
    driver = await new Builder().forBrowser('chrome').build();
    await driver.get('http://localhost:8000/');
    const link = await driver.findElement(By.css('a'));
    await link.click();

    while (true) {
      try {
        await access(DOWNLOAD_PATH);
        break;
      } catch (err) {
        await driver.sleep(50);
      }
    }
  } catch (err) {
    console.error(err);
  } finally {
    await driver.quit();
  }
})();

package.json

{
  "scripts": {
    "start": "node index.js",
    "server": "python -m SimpleHTTPServer"
  },
  "dependencies": {
    "chromedriver": "^78.0.1",
    "selenium-webdriver": "^4.0.0-alpha.5"
  },
  "engines": {
    "node": ">=12"
  }
}