Request-promise download file node

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Millinery on the Stack: Join us for Winter Summer? Bash, ! Our function returns a promise which allows us to track the process completion and the status. To install axios you can use npm or your favorite package manager like yarn :. Then we're able to replace our function internal to get the same functionality. As I've mentioned before, we can change the entire function content while keeping the behavior persistent.

As I've mentioned before, Javascript allows you to resolve most of the tasks with a separate module, and image downloading using NodeJS is not an exclusion from this rule. Meet image-downloader. This kind of library allows you to solve your specific task with the smallest possible amount of code. This function defines a static URL and path to the local image file. You could pass both variables as function parameters to create a more general download method.

This signals a successful data transmission. At this point, resolve the promise to complete the file transfer. To recognize error situations, listen for the error event as well. With that, you can reuse the download. Each time you execute the script, pass the required url and path arguments from the command-line. The example below will download the image from the first argument as save it as image. Sometimes, you may need to download multiple files and save them into your system. The download package allows you to download multiple images and save them under a folder as shown below:.

Lets end this with an overall recap of what is happening with this snippet and how it is working step by step. There are plenty of alternatives out there, like: http. Also if you want to learn more and go much more in-depth with the downloading of files, I have a great course with 7 extra hours of great content on web scraping with nodejs.