How are we achieving parallel downloading here?

[nikhildr22]

Hi,

I was amazed by the downloading speed boost because of parallelization.
Can somebody explain what are we using here to achieve this? It'd be great to have script that does just downloading in blazing speed.
Thanks

[TCNOco]

Nothing crazy, just multithreaded downloads.

File-DownloadMethods.ps1

1. Initialize-Aria2 - This installs aria2 either through Chocolatey or by downloading the aria2 distribution, and extracting the exe.
2. Get-Aria2File - Makes sure aria2 is installed, then tried to download a file with the following command: aria2c --disable-ipv6 -x 8 -s 8 --continue --out="$OutputPath" "$Url" --console-log-level=error --download-result=hide.

--disable-ipv6 fixes issues when using Tailscale and other VPN software... For some reason finds those connections and tries to download through them, causing downloads to fail randomly. -x 8 (--max-connection-per-server) allows multithreading over 8 connections to the server, -s 8 (--split) Download a file using N connections. --out="$outputPath\$_" Download to path. "$Url/$_" URL to download from. -console-log-level=error --download-result=hide declutters the console during a download.

3. If aria2c isn't in the path, it tries running the exe directly & $aria2Path.
4. Otherwise it defaults to the singlethreaded built-in downloader Get-FileFromWeb.

Get-Aria2Files is similar, it just takes an array in and downloads each file after the other $files | ForEach-Object

If you're looking for a program to speed up general downloads, look into jDownloader.

[nikhildr22]

Thanks a lot for taking the time to explain.
I tried jDownloader, it does the job for me.
[for those who might come across this comment, you can head over to jDownloader's official site and download the installer, their git repo does not seem to have a well-documented readme for installation]