PowerShell function to download files from a GitHub repository

DownloadFilesFromRepo.ps1

function DownloadFilesFromRepo {
Param(
    [string]$Owner,
    [string]$Repository,
    [string]$Path,
    [string]$DestinationPath
    )

    $baseUri = "https://api.github.com/"
    $args = "repos/$Owner/$Repository/contents/$Path"
    $wr = Invoke-WebRequest -Uri $($baseuri+$args)
    $objects = $wr.Content | ConvertFrom-Json
    $files = $objects | where {$_.type -eq "file"} | Select -exp download_url
    $directories = $objects | where {$_.type -eq "dir"}
    
    $directories | ForEach-Object { 
        DownloadFilesFromRepo -Owner $Owner -Repository $Repository -Path $_.path -DestinationPath $($DestinationPath+$_.name)
    }

    
    if (-not (Test-Path $DestinationPath)) {
        # Destination path does not exist, let's create it
        try {
            New-Item -Path $DestinationPath -ItemType Directory -ErrorAction Stop
        } catch {
            throw "Could not create path '$DestinationPath'!"
        }
    }

    foreach ($file in $files) {
        $fileDestination = Join-Path $DestinationPath (Split-Path $file -Leaf)
        try {
            Invoke-WebRequest -Uri $file -OutFile $fileDestination -ErrorAction Stop -Verbose
            "Grabbed '$($file)' to '$fileDestination'"
        } catch {
            throw "Unable to download '$($file.path)'"
        }
    }

}

How will this work if the repository is private? Is there anyone to stick in the oauth token?

Working like a charm, well done!

I know it's been three years, but I forked your git, and added authentication (to increase API limit) and some minor tweaks.
Would love to hear what you think. Gist Fork

Tried this script for download a particular file kept at private repo but did not work. It ran immediately and did not show execute any exception scenarios as well. Is there any environment pre-requisites that needs to be met or am I missing something here ?

How will this work if the repository is private? Is there anyone to stick in the oauth token?

I need help with this too.

If the repo is private...

$token = "<Create a Personal Access Token>"
$headers = @{Authorization = "token $($token)"}
Invoke-WebRequest -Headers $headers -Uri $uri

If the repo is private...

$token = "<Create a Personal Access Token>"
$headers = @{Authorization = "token $($token)"}
Invoke-WebRequest -Headers $headers -Uri $uri

Thank you @StanleyGoldman , So difficult to find this specific scenario cleanly presented.

I am new on GitHub. This article was very useful. Thank you very much.