Public/Get/Entities/Get-NinjaOneAlerts.ps1

using namespace System.Management.Automation

function Get-NinjaOneAlerts {
    <#
        .SYNOPSIS
            Gets alerts from the NinjaOne API.
        .DESCRIPTION
            Retrieves alerts from the NinjaOne v2 API.
        .FUNCTIONALITY
            Alerts
        .EXAMPLE
            PS> Get-NinjaOneAlerts
             
            Gets all alerts.
        .EXAMPLE
            PS> Get-NinjaOneAlerts -sourceType 'CONDITION_CUSTOM_FIELD'
 
            Gets all alerts with source type CONDITION_CUSTOM_FIELD.
        .EXAMPLE
            PS> Get-NinjaOneAlerts -deviceFilter 'status eq APPROVED'
 
            Gets alerts for all approved devices.
        .OUTPUTS
            A powershell object containing the response.
    #>

    [CmdletBinding()]
    [OutputType([Object])]
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSReviewUnusedParameter', '', Justification = 'Uses dynamic parameter parsing.')]
    Param(
        # Filter by device id.
        [Parameter(Position = 0, ValueFromPipeline, ValueFromPipelineByPropertyName)]
        [Alias('id')]
        [Int]$deviceId,
        # Filter by source type.
        [Parameter(Position = 1)]
        [String]$sourceType,
        # Filter by device which triggered the alert.
        [Parameter(Position = 2)]
        [Alias('df')]
        [String]$deviceFilter,
        # Filter by language tag.
        [Parameter(Position = 3)]
        [Alias('lang')]
        [String]$languageTag,
        # Filter by timezone.
        [Parameter(Position = 4)]
        [Alias('tz')]
        [String]$timeZone
    )
    $CommandName = $MyInvocation.InvocationName
    $Parameters = (Get-Command -Name $CommandName).Parameters
    # Workaround to prevent the query string processor from adding an 'deviceid=' parameter by removing it from the set parameters.
    if ($deviceId) {
        $Parameters.Remove('deviceId') | Out-Null
    }
    try {
        $QSCollection = New-NinjaOneQuery -CommandName $CommandName -Parameters $Parameters
        if ($deviceId) {
            Write-Verbose 'Getting device from NinjaOne API.'
            $Device = Get-NinjaOneDevices -deviceId $deviceId
            if ($Device) {
                Write-Verbose ('Getting alerts for device {0}.' -f $Device.SystemName)
                $Resource = ('v2/device/{0}/alerts' -f $deviceId)
            } else {
                throw ('Device with id {0} not found.' -f $deviceId)
            }
        } else {
            Write-Verbose 'Retrieving all alerts.'
            $Resource = 'v2/alerts'
        }
        $RequestParams = @{
            Resource = $Resource
            QSCollection = $QSCollection
        }
        try {
            $AlertResults = New-NinjaOneGETRequest @RequestParams
            return $AlertResults
        } catch {
            if (-not $AlertResults) {
                if ($Device) {
                    throw ('No alerts found for device {0}.' -f $Device.SystemName)
                } else {
                    throw 'No alerts found.'
                }
            }
        }
    } catch {
        New-NinjaOneError -ErrorRecord $_
    }
}