7/28/2023 0 Comments Puppeteer download![]() log( "CHILD: url received from parent process", url) Ĭonst browser = await puppeteer. But we would like to control where the downloaded file goes so we could process them later. Why (The Motivation Behind) It's normal that we would like to download some files, parse and process it in our scraping process. The code snippet below is a simple example of running parallel downloads with Puppeteer.Ĭonst downloadPath = path. Puppeteer is a Node library which provides a high-level API to control headless Chrome or Chromium over the DevTools Protocol. How to Configure Custom Download Folder in Puppeteer Published Today I learned How to Set Download Path in Puppeteer. □ 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. Note: When you install Puppeteer, it will download the latest version of Chromium (205MB Mac, 282MB Linux, 154. We can fork multiple child_proces in Node. ![]() Our CPU cores can run multiple processes at the same time. □ 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. However, if you have to download multiple large files things start to get complicated. Latest version: 20.0.0, last published: 13 days ago. In this next part, we will dive deep into some of the advanced concepts. Tool to resolve puppeteer and chromium faster, detect local installed chromium, download chromium with custom mirror host, cache chromium revision out of nodemodules, test chromium headless being launchable.
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