Powershell script to download all packages from a nuget feed

ps-download-all-nuget-packages

$destinationDirectory = "C:\LocalNuGetTest\"
$webClient = New-Object System.Net.WebClient
$webClient.Credentials = New-Object System.Net.NetworkCredential("USERNAME", "PASSWORD")
$feed =[xml]$webClient.DownloadString("https://hostednugetfeed.com/custom-feed/nuget/v2/Packages")

$records = $feed | select -ExpandProperty feed | select -ExpandProperty entry #| select -ExpandProperty content

for ($i=0; $i -lt $records.Length; $i++) {
    $content = $records[$i] | select -ExpandProperty content
    $properties = $records[$i] | select -ExpandProperty properties
    $title = $records[$i].title.'#text'
    $url = $content.src
    $startOfQuery = $url.IndexOf("?id=") + 4
    $fileName = $url.Substring($startOfQuery, $url.Length - $startOfQuery)
    $fullPath = ($destinationDirectory + "" + $fileName)

    $webClient.DownloadFile($content.src, ($destinationDirectory + "" + $title + "." + $properties.Version + ".nupkg"))
}

I created a modified version for MyGet, this script also pulls symbol packages (if available) and can work with multiple feeds

this is tested with powershell 6, should work with 5 if you register a v2 feed endpoint...

$Token = "xxxxxx-xxxxxx-xxxxxx-xxxx"
$WebClient = New-Object System.Net.WebClient
$Feeds = "a","b","c"

New-Item -Name "feeds" -Type 'directory' -Force

ForEach ($Feed in $Feeds) {
Register-PackageSource "${Feed}" -Location "https://stylelabs.myget.org/F/${Feed}/auth/${Token}/api/v3/index.json" -Trusted -ProviderName NuGet -Force
New-Item -Name ".\feeds${Feed}" -Type 'directory' -Force
Find-Package -AllowPrereleaseVersions -AllVersions -Source "${Feed}" | ForEach-Object {

	$Url = "https://stylelabs.myget.org/F/${Feed}/auth/${Token}/api/v2/package/$($_.Name)/$($_.Version)"
	$SymbolUrl = "https://stylelabs.myget.org/F/${Feed}/auth/${Token}/symbols/$($_.Name)/$($_.Version)"

	$FileName = "$($_.Name).$($_.Version).nupkg"
	$SymbolFileName = "$($_.Name).$($_.Version).symbols.nupkg"

	Write-Output "Downloading $($_.Name) $($_.Version)"
	$WebClient.DownloadFile($Url, ".\feeds\${Feed}\" + $FileName)
	try {
		$WebClient.DownloadFile($SymbolUrl, ".\feeds\${Feed}\" + $SymbolFileName) 
	} catch { Write-Warning "${SymbolFileName} not found" }
}
Unregister-PackageSource -Name "${Feed}" -Force

}

Interesting! However this only downloads 100 first nupkgs when I use this URL: https://www.powershellgallery.com/api/v2/Packages
Is there a way to make the script crawl the entire repository?

Yes, @EricSP2, and for anyone else wondering, there are ref links which will give you the next batch. Something like this:

$r = Invoke-WebRequest -uri "https://example.com/nuget/api/v2/Packages"
$RequestContent = [xml] $r
$NextLink = $RequestContent.feed.link.href[1]

Invoke-WebRequest -Uri "$NextLink"