# Basic verbose loggingenv DEBUG="puppeteer:*" node script.js# Debug output can be enabled/disabled by namespaceenv DEBUG="puppeteer:*,-puppeteer:protocol" node script.js # everything BUT protocol messagesenv DEBUG="puppeteer:session" node script.js # protocol session messages (protocol messages to targets)env DEBUG="puppeteer:mouse,puppeteer:keyboard" node script.js # only Mouse and Keyboard API calls# Protocol traffic can be rather noisy. (async () => `)) Įnable verbose logging - All public API calls and internal protocol trafficwill be logged via the debug module under the puppeteer namespace. ```jsconst puppeteer = require('puppeteer') You create an instanceof 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. UsageĬaution: Puppeteer requires at least Node v6.4.0, but the examples below use async/await which is only supported in Node v7.6.0 or greater. To skip the download, see Environment variables. Note: When you install Puppeteer, it downloads a recent version of Chromium (~71Mb Mac, ~90Mb Linux, ~110Mb Win) that is guaranteed to work with the API. To use Puppeteer in your project, run:```yarn add puppeteer or "npm i puppeteer" Give it a spin: Getting Started Installation Capture a timeline trace of your site to help diagnose performance issues.Run your tests directly in the latest version of Chrome using the latest JavaScript and browser features. Create an up-to-date, automated testing environment.
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