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. Our CPU cores can run multiple processes at the same time. 💡 Learn more about the single threaded architecture of node here Whether you are using python or javascript or any other tools, e.g. If you are new to it, check out an installation guide. 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. How to Install Pyppeteer in Python You must have Python 3.6+ installed on your system as a prerequisite. It can only execute one process at a time. full capabilities, nbconvert requires Pandoc, TeX (specifically, XeLaTeX) and Pyppeteer. You see Node.js in its core is a single-threaded system. To install XeLaTeX please download and run MiKTeX installer. 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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