Public/Get-LMDeviceGroupDevices.ps1

Function Get-LMDeviceGroupDevices {

    [CmdletBinding(DefaultParameterSetName = 'Id')]
    Param (
        [Parameter(Mandatory, ParameterSetName = 'Id')]
        [Int]$Id,

        [Parameter(ParameterSetName = 'Name')]
        [String]$Name,

        [Object]$Filter,

        [Boolean]$IncludeSubGroups = $false,

        [ValidateRange(1,1000)]
        [Int]$BatchSize = 1000
    )
    #Check if we are logged in and have valid api creds
    If ($Script:LMAuth.Valid) {

        If ($Name) {
            $LookupResult = (Get-LMDeviceGroup -Name $Name).Id
            If (Test-LookupResult -Result $LookupResult -LookupString $Name) {
                return
            }
            $Id = $LookupResult
        }
        $Ids = @()
        If ($IncludeSubGroups) {
            $Ids += Get-NestedDeviceGroups -Ids @($Id)
        }
        #Add in oringal Id to our list
        $Ids += $Id

        #Our return object
        $Results = @()

        Foreach ($i in $Ids) {

            #Build header and uri
            $ResourcePath = "/device/groups/$i/devices"

            #Initalize vars
            $QueryParams = ""
            $Count = 0
            $Done = $false

            #Loop through requests
            While (!$Done) {
                #Build query params
                $QueryParams = "?size=$BatchSize&offset=$Count&sort=+id"

                If ($Filter) {
                    #List of allowed filter props
                    $PropList = @()
                    $ValidFilter = Format-LMFilter -Filter $Filter -PropList $PropList
                    $QueryParams = "?filter=$ValidFilter&size=$BatchSize&offset=$Count&sort=+id"
                }

                Try {
                    $Headers = New-LMHeader -Auth $Script:LMAuth -Method "GET" -ResourcePath $ResourcePath
                    $Uri = "https://$($Script:LMAuth.Portal).logicmonitor.com/santaba/rest" + $ResourcePath + $QueryParams

                    #Issue request
                    $Response = Invoke-RestMethod -Uri $Uri -Method "GET" -Headers $Headers[0] -WebSession $Headers[1]

                    #Stop looping if single device, no need to continue
                    If (![bool]$Response.psobject.Properties["total"]) {
                        $Done = $true
                        $Results += $Response
                    }
                    #Check result size and if needed loop again
                    Else {
                        [Int]$Total = $Response.Total
                        [Int]$Count += ($Response.Items | Measure-Object).Count
                        $Results += $Response.Items
                        If ($Count -ge $Total) {
                            $Done = $true
                        }
                    }
                }
                Catch [Exception] {
                    $Proceed = Resolve-LMException -LMException $PSItem
                    If (!$Proceed) {
                        Return
                    }
                }
            }
            #Dedupe results
        }
        If($Results){
            $Results = ($Results | Sort-Object -Property Id -Unique)
        }
        Return (Add-ObjectTypeInfo -InputObject $Results -TypeName "LogicMonitor.Device" )
    }
    Else {
        Write-Error "Please ensure you are logged in before running any commands, use Connect-LMAccount to login and try again."
    }
}