This type of coding is also generally used for performance testing, stress testing a website by simulating multiple instances of real-users visiting the site. Selenium uses a chrome browser and goes through the website like a normal person would, clicking on buttons and links. Traditional scrapping does not work with dynamic sites that load content on the fly. Python and Selenium are really useful for scrapping JS based websites that load dynamically.
This guide will show you how to set up an Ubuntu Virtual Private Server (VPS) for web scrapping with Selenium. If your tests require a Chrome instance running inside a Docker container, ensure that you add the -no-sandbox value to the args object to access the Chrome binary from the docker container.# Install Chrome Browser and Chromedriver Ubuntu 20.04 Using Chrome running in a Docker container "profile.password_manager_enabled" : false The following code snippet shows how to set the preferences if you want to disable the browser's password manager feature in the nightwatch.json file: You can refer to this list of command line switches that you can pass as args to the chromeOptions key under your desiredCapabilities key in your nightwatch.json file as follows:Īpart from the command line switches that you set using the args key, you can also pass the Chrome profile preferences using the prefs key. Nightwatch supports all arguments and capabilities that ChromeDriver provides.Ĭheck out the official ChromeDriver documentation to learn more about these capabilities. Each item in the list should be a base-64 encoded packed Chrome extension (.crx)
e.g., '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome')Ī list of Chrome extensions to install on startup. Path to the Chrome executable to use (on Mac OS X, this should be the actual binary, not just the app. Arguments with an associated value should be separated by a '=' sign (e.g., ). List of command-line arguments to use when starting Chrome.
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