![]() Being an end-user product, puppeteer automates several workflows using reasonable defaults that can be customized. When installed, it downloads a version of Chrome, which it then drives using puppeteer-core. log( "CHILD: url received from parent process", url) Ĭonst browser = await puppeteer. puppeteer is a product for browser automation. The code snippet below is a simple example of running parallel downloads with Puppeteer.Ĭonst downloadPath = path. □ If you are not familiar with how child process work in Node I highly encourage you to give this article a read. We can combine the child process module with our Puppeteer script and download files in parallel. To download Microsoft Edge, go to Download Microsoft Edge Insider Channels. ![]() Child process is how Node.js handles parallel programming. We can fork multiple child_proces in Node. ![]() Our CPU cores can run multiple processes at the same time. Note: When you install Puppeteer, it will download the latest version of Chromium (205MB Mac, 282MB Linux, 154. Now use npm command to install Puppeteer: npm i puppeteer. Error: self signed certificate in certificate chain I have also tried below option, still getting the same error npm install -g puppeteer -unsafe-permtrue -allow-root node. It is free and capable of reading and writing files on a server and used in networking. ![]() □ Learn more about the single threaded architecture of node here Command used to install PUPPETEER npm install -save PUPPETEER Error: ERROR: Failed to set up Chromium r782078 Set 'PUPPETEERSKIPDOWNLOAD' env variable to skip download. Therefore if we have to download 10 files each 1 gigabyte in size and each requiring about 3 mins to download then with a single process we will have to wait for 10 x 3 = 30 minutes for the task to finish. It can only execute one process at a time. You see Node.js in its core is a single-threaded system. However, if you have to download multiple large files things start to get complicated. In this next part, we will dive deep into some of the advanced concepts.
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