Chrome and is built over Chromium by adding many features. Note that Chromium and Chrome are two different browsers. In this Puppeteer tutorial, we will be focusing on Chromium.Ĭhromium is an open-source web browser made by Google. There are few more browsers with headless mode supported, for example, Splash, Chromium, etc. The most commonly used browsers, Chrome and Firefox, support headless mode. Everything is controlled programmatically. Headless browsers have complete functionality offered by a browser while being faster and taking up a lot less memory because there is no user interface. What is a headless browser?Ī headless browser is simply a browser but without a graphical user interface. Fortunately, there are better solutions – headless browsers. These UI elements are not needed when everything is being controlled with code. Unfortunately, loading a browser would take a lot of resources because it has to load a lot of other things like the toolbar and buttons.
The easiest way to manage these sites is to open a browser and load the site. The biggest is that it cannot handle dynamic sites – sites that are rendered using JavaScript. Though this is a fast method, it has its limitations. We covered this process in-depth in our JavaScript web scraping tutorial. This can then be parsed using packages like Cheerio. It directly sends a get request to the web page and receives HTML content. The first method uses packages e.g., Axios.
Generally, there are two methods of accessing and parsing web pages. There are a few methods to accessing and parsing web pages, but in this tutorial we will be covering how to do it with Google Puppeteer.
puppeteerrc.cjs (or scraping and automation with JavaScript has evolved a lot in recent years. Puppeteer uses several defaults that can be customized through configurationįor example, to change the default cache directory Puppeteer uses to installīrowsers, you can add a. Include $HOME/.cache into the project's deployment.įor a version of Puppeteer without the browser installation, see Your project folder (see an example below) because not all hosting providers Heroku, you might need to reconfigure the location of the cache to be within If you deploy a project using Puppeteer to a hosting provider, such as Render or The browser is downloaded to the $HOME/.cache/puppeteer folderīy default (starting with Puppeteer v19.0.0). When you install Puppeteer, it automatically downloads a recent version ofĬhrome for Testing (~170MB macOS, ~282MB Linux, ~280MB Windows) that is guaranteed to
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