如何在Heroku上使用Selenium Webdriver? [英] How to use Selenium Webdriver on Heroku?

问题描述

我正在开发Node.js应用程序，并在其上使用Selenium Webdriver进行抓取.但是，当我在Heroku上部署时，Selenium无法正常工作.如何让Selenium在Heroku上工作?

I am developing a Node.js app, and I use Selenium Webdriver on it for scraping purposes. However, when I deploy on Heroku, Selenium doesn't work. How can I make Selenium work on Heroku?

推荐答案

下面是使用selenium-webdriver npm包和chrome浏览器的javaScript示例代码.

Below is a javaScript sample code using selenium-webdriver npm package with chrome browser.

const webdriver = require('selenium-webdriver');
const chrome = require('selenium-webdriver/chrome');

let options = new chrome.Options();
//Below arguments are critical for Heroku deployment
options.addArguments("--headless");
options.addArguments("--disable-gpu");
options.addArguments("--no-sandbox");

let driver = new webdriver.Builder()
  .forBrowser('chrome')
  .setChromeOptions(options)
  .build();

driver.get('http://www.google.com');
driver.quit();

在准备部署之前，您需要向Heroku中添加两个buildpack.

Before you are ready to deploy, you would need to add two buildpacks to Heroku.

• 使用Heroku buildpacks命令:

$ heroku buildpacks:add --index 1 https://github.com/heroku/heroku-buildpack-chromedriver
$ heroku buildpacks:add --index 2 https://github.com/heroku/heroku-buildpack-google-chrome

或

• 在Heroku仪表板中进行配置:
  设置->添加构建包-> https://github.com/heroku/heroku-buildpack-chromedriver ->保存更改
  设置->添加构建包-> https://github.com/heroku/heroku-buildpack -google-chrome ->保存更改
  

• Config in Heroku dashboard:
  Settings -> Add buildpacks -> https://github.com/heroku/heroku-buildpack-chromedriver -> Save changes
  Settings -> Add buildpacks -> https://github.com/heroku/heroku-buildpack-google-chrome -> Save changes
  

这篇关于如何在Heroku上使用Selenium Webdriver?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！