Public/Groups/Remove-GSGroup.ps1

function Remove-GSGroup {
    <#
    .SYNOPSIS
    Removes a group
    
    .DESCRIPTION
    Removes a group
    
    .PARAMETER Identity
    The email or unique Id of the group to removed
    
    .EXAMPLE
    Remove-GSGroup 'test_group' -Confirm:$false

    Removes the group 'test_group@domain.com' without asking for confirmation
    #>

    [cmdletbinding(SupportsShouldProcess = $true,ConfirmImpact = "High")]
    Param
    (
        [parameter(Mandatory = $true,Position = 0,ValueFromPipeline = $true,ValueFromPipelineByPropertyName = $true)]
        [Alias('GroupEmail','Group','Email')]
        [String[]]
        $Identity
    )
    Begin {
        $serviceParams = @{
            Scope       = 'https://www.googleapis.com/auth/admin.directory.group'
            ServiceType = 'Google.Apis.Admin.Directory.directory_v1.DirectoryService'
        }
        $service = New-GoogleService @serviceParams
    }
    Process {
        try {
            foreach ($G in $Identity) {
                if ($G -notlike "*@*.*") {
                    $G = "$($G)@$($Script:PSGSuite.Domain)"
                }
                if ($PSCmdlet.ShouldProcess("Removing group '$G'")) {
                    Write-Verbose "Removing group '$G'"
                    $request = $service.Groups.Delete($G)
                    $request.Execute()
                    Write-Verbose "Group '$G' has been successfully removed"
                }
            }
        }
        catch {
            if ($ErrorActionPreference -eq 'Stop') {
                $PSCmdlet.ThrowTerminatingError($_)
            }
            else {
                Write-Error $_
            }
        }
    }
}