Yeah, we can run Chromium using Alpine Linux, but we'll need a few extra steps to make it run. it's important to know what are the different between the available variants. we want to run a web browser inside a container. This is because it was tested with the latest Chromium stable release. If we use the Docker images for Node.js v14 LTS Gallium, when installing the chromium package from apt, it will be v90.0, which can have compatibility issues with the latest Puppeteer. This guide helps to use Puppeteer inside a Docker container using the Node.js image. log( "CHILD: url received from parent process", url) Ĭonst browser = await puppeteer.Puppeteer is a Node.js library which provides a high-level API to control Chromium (or Firefox) browsers over the DevTools Protocol. 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 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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