The following bash script takes care of all this, assuming you already have Node.js installed. We can do this quite easily as follows.įirst, we need to create a folder, install prerequisites, and create a file in which to put our JavaScript code. The easiest thing we can do is use Puppeteer to open a webpage and take a screenshot of it. A Minimal Puppeteer Exampleīefore we embark upon our Docker journey, we need a simple Puppeteer program we can test with. In this article, we’ll see why this combination is problematic and how to solve it. However, since deploying a browser is fundamentally more complicated than your average API, Puppeteer and Docker are a little tricky to get working together.

Browser automation is also very common for automated testing of web applications, and may also be used for a lot of other things.Īs with any other piece of software, it is sometimes convenient to package a Puppeteer script in a Docker container. I’ve already shown it in action a couple of years ago in my article, “ Gathering Net Salary Data with Puppeteer“, where I used it for web scraping. Puppeteer runs in headless mode by default, but can be configured to run in full (non-headless) Chrome/Chromium.” “Puppeteer is a Node.js library which provides a high-level API to control Chrome/Chromium over the DevTools Protocol. Puppeteer creates its own browser user profile which it cleans up on every run.Puppeteer is an API enabling browser automation via Chrome/Chromium. This article describes some differences for Linux users. See this article for a description of the differences between Chromium and Chrome. See Puppeteer.launch() for more information.

You can also use Puppeteer with Firefox Nightly (experimental support). const puppeteer = require ( 'puppeteer' ) Ĭonst browser = await puppeteer. You create an instance of Browser, open pages, and then manipulate them with Puppeteer's API.Įxample: navigating to and saving a screenshot as example.png: Puppeteer will be familiar to people using other browser testing frameworks. All examples below use async/await which is only supported in Node v7.6.0 or greater. Starting from v3.0.0 Puppeteer starts to rely on Node 10.18.1+. Prior to v1.18.1, Puppeteer required at least Node v6.4.0.

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