Get IP Address WhoIs Info

Get-JsonWhois.ps1

function Get-JsonWhois
{
    [CmdletBinding(DefaultParameterSetName = "ip")]
    param
    (
        [Parameter(Mandatory, ParameterSetName = "ip")]
        [string]
        $IPAddress,

        [Parameter(Mandatory, ParameterSetName = "domain")]
        [string]
        $DomainName,

        [Parameter(Mandatory)]
        [string]
        $ApiToken
    )

    $BaseUri = "https://api.jsonwhois.io/whois"

    $Uri = switch ($PSCmdlet.ParameterSetName)
    {
        "ip"
        {
            "{0}/{1}?key={2}&ip_address=$IPAddress" -f $BaseUri, "ip", $ApiToken, $IPAddress
        }

        "domain"
        {
            "{0}/{1}?key={2}&domain=$DomainName" -f $BaseUri, "domain", $ApiToken, $DomainName
        }
    }

    Invoke-RestMethod -Uri $Uri | Select-Object -ExpandProperty Result
}