winutil/functions/private/Get-WinUtilWingetLatest.ps1

function Get-WinUtilWingetLatest {
    <#
    .SYNOPSIS
        Uses GitHub API to check for the latest release of Winget.
    .DESCRIPTION
        This function grabs the latest version of Winget and returns the download path to Install-WinUtilWinget for installation.
    #>

    Try{
        # Grabs the latest release of Winget from the Github API for the install process.
        $response = Invoke-RestMethod -Uri "https://api.github.com/repos/microsoft/Winget-cli/releases/latest" -Method Get -ErrorAction Stop
        $latestVersion = $response.tag_name #Stores version number of latest release.
        $licenseWingetUrl = $response.assets.browser_download_url[0] #Index value for License file.
        Write-Host "Latest Version:`t$($latestVersion)`n"
        $assetUrl = $response.assets.browser_download_url[2] #Index value for download URL.
        Invoke-WebRequest -Uri $licenseWingetUrl -OutFile $ENV:TEMP\License1.xml
        # The only pain is that the msixbundle for winget-cli is 246MB. In some situations this can take a bit, with slower connections.
        Invoke-WebRequest -Uri $assetUrl -OutFile $ENV:TEMP\Microsoft.DesktopAppInstaller.msixbundle
    }
    Catch{
        throw [WingetFailedInstall]::new('Failed to get latest Winget release and license')
    }
}