In this basic example, we create a visible browser instance, start a new tab, go to webpage and print its contents. This setting allows us to scrape non-https websites easier for development lets keep this to true so we can see what's going on but in ![]() Headless option allows us to disable visible GUI, so the browser runs in the "background" First, we must launch a browser instance We'll start a headless Chrome web browser (headless mode meaning a special version of the browser that has no GUI elements), tell it to go to some websites, wait for it to load and retrieve the HTML page source: // import puppeteer library Now with our package ready let's start with the most basic example. If you're unfamiliar with async await syntax in Javascript, we recommend this quick introduction article by MDN. This means we'll be working in the context of Promises and async/await programming. The first thing we should note is that Puppeteer is an asynchronous node library. Puppeteer node js library can be installed through NodeJS package manager npm with these terminal commands: $ mkdir myproject & cd myproject Now, let's take a look at this in greater detail. The easiest way to experiment and get the hang of Puppeteer is to use nodejs REPL and try Puppeteer out real-time. In turn, more complexity also requires more developer diligence and maintenance. That being said, there are some negatives.īrowsers are complex software projects and are very resource intensive. Since we look like normal website users, we are much harder to identify as robots.
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