log( "CHILD: url received from parent process", url) Ĭonst browser = await puppeteer. 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.
Child process is how Node.js handles parallel programming. We can fork multiple child_proces in Node. We've also recently introduced support for Playwright, if you're interested in that head over to playwright-extra. :-) For the main documentation, please head over to the puppeteer-extra package. Our CPU cores can run multiple processes at the same time. puppeteer-extra This is the monorepo for puppeteer-extra, a modular plugin framework for puppeteer. 💡 Learn more about the single threaded architecture of node here 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. Will you escape the Puppeteer You ran off the horrors of the dreadful house of Forgotten Hill and are finally back to your car, just to find out that your. Deprecation notice: We are moving our efforts to v, a new free & open source knowledge base for Puppeteer AND Playwright.Idea is the same: practical examples and guides, by the community. 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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