Get-MIDServerDownloadURL.ps1

function Get-MIDServerDownloadUrl {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [string[]]
        $InstanceName,

        [Parameter()]
        [ValidateSet("windows", "linux")]
        [string]
        $OperatingSystem = "windows",

        [Parameter()]
        [ValidateSet("msi", "zip")]
        [string]
        $Type = "msi"
    )

    begin {
        $InstanceName = $InstanceName | ForEach-Object { $_.ToLower() }

        if ($Type -eq "msi") {
            $FilePrefix = "mid-windows-installer"
            $BaseURL = "https://install.service-now.com/glide/distribution/builds/package/app-signed/mid-windows-installer"
        } else {
            $FilePrefix = "mid"
            $BaseURL = "https://install.service-now.com/glide/distribution/builds/package/mid"
        }
    }

    process {

        foreach ($Instance in $InstanceName) {

            $InstanceStats = Invoke-WebRequest -Uri "https://$($Instance).service-now.com/stats.do"
            
            $BuildDate = $InstanceStats.Content | Select-String -Pattern 'Build date: ([^<]{1,})'
            $BuildDate = ($BuildDate.Matches.Value -split ": ")[1]

            $BuildStamp = $InstanceStats.Content | Select-String -Pattern "MID buildstamp: ([^<]{1,})"
            $BuildStamp = ($BuildStamp.Matches.Value -split ": ")[1]
            
            $BuildYear = $BuildDate.Split("_")[0].Split("-")[2]
            $BuildMonth = $BuildDate.Split("_")[0].Split("-")[0]
            $BuildDay = $BuildDate.Split("_")[0].Split("-")[1]

            $DirectDowloadURL = "{0}/{1}/{2}/{3}/{4}.{5}.{6}.x86-64.{7}" -f (
                $BaseURL, 
                $BuildYear, 
                $BuildMonth, 
                $BuildDay, 
                $FilePrefix,
                $BuildStamp, 
                $OperatingSystem,
                $Type
            )

            $DirectDowloadURL
        }
    }

    end {}
}