Powershell script to download files on Windows Server Nano where Invoke-Webrequest/wget are natively missing

wget.ps1

<#
.SYNOPSIS
    Downloads a file
.DESCRIPTION
    Downloads a file
.PARAMETER Url
    URL to file/resource to download
.PARAMETER Filename
    file to save it as locally
.EXAMPLE
    C:\PS> .\wget.ps1 https://dist.nuget.org/win-x86-commandline/latest/nuget.exe
#>

Param(
  [Parameter(Position=0,mandatory=$true)]
  [string]$Url,
  [string]$Filename = ''
)

# Get filename
if (!$Filename) {
    $Filename = [System.IO.Path]::GetFileName($Url)    
}

Write-Host "Download: $Url to $Filename"

# Make absolute local path
if (![System.IO.Path]::IsPathRooted($Filename)) {
    $FilePath = Join-Path (Get-Item -Path ".\" -Verbose).FullName $Filename
}

if (($Url -as [System.URI]).AbsoluteURI -ne $null)
{
    # Download the bits
    $handler = New-Object System.Net.Http.HttpClientHandler
    $client = New-Object System.Net.Http.HttpClient($handler)
    $client.Timeout = New-Object System.TimeSpan(0, 30, 0)
    $cancelTokenSource = [System.Threading.CancellationTokenSource]::new()
    $responseMsg = $client.GetAsync([System.Uri]::new($Url), $cancelTokenSource.Token)
    $responseMsg.Wait()
    if (!$responseMsg.IsCanceled)
    {
        $response = $responseMsg.Result
        if ($response.IsSuccessStatusCode)
        {
            $downloadedFileStream = [System.IO.FileStream]::new($FilePath, [System.IO.FileMode]::Create, [System.IO.FileAccess]::Write)
            
            $copyStreamOp = $response.Content.CopyToAsync($downloadedFileStream)
            # TODO: Progress bar? Total size?
            Write-Host "Downloading ..."
            $copyStreamOp.Wait()

            $downloadedFileStream.Close()
            if ($copyStreamOp.Exception -ne $null)
            {
                throw $copyStreamOp.Exception
            }
        }
    }
}
else
{
    throw "Cannot download from $Url"
}