How to download files from external host

[higoka]

I have a list of filenames i need to download from a website.

In nodejs how would i download these files in parallel using ky? is this even possible or should i use got?

[sindresorhus]

Something like this (untested):

import ky from 'ky';
import {writeFile} from 'fs/promises';

async function downloadFiles(fileNames, downloadUrl) {
	await Promise.all(
		fileNames.map(async fileName => {
			const file = await ky.get(`${downloadUrl}/${fileName}`).bytes();
			await writeFile(fileName, file);
		})
	);
}

const fileNames = ['file1.txt', 'file2.txt']; // Replace with your filenames
const downloadUrl = 'https://example.com/files'; // Replace with your download URL
await downloadFiles(fileNames, downloadUrl);

[raphaelcockx]

I just tried (a variation on) this code but noticed that you can't just pass file to writeFile as it doesn't accept an arrayBuffer for the second argument. This however will work:

await writeFile(fileName, Buffer.from(file));

[sindresorhus]

If you are on Node.js 20 or later, you can use .bytes() instead of .arrayBuffer().