add support for api driven tasks which come in as json.

Modules/CIPPCore/Public/Add-CIPPScheduledTask.ps1

@@ -19,19 +19,19 @@ function Add-CIPPScheduledTask {
     $propertiesToCheck = @('Webhook', 'Email', 'PSA')
     $PostExecution = ($propertiesToCheck | Where-Object { $task.PostExecution.$_ -eq $true }) -join ','
     $Parameters = [System.Collections.Hashtable]@{}
-    foreach ($Key in $task.Parameters.Keys) {
+    foreach ($Key in $task.Parameters.PSObject.Properties.Name) {
         $Param = $task.Parameters.$Key
-        if ($Param.Key) {
+        if ($Param -is [System.Collections.IDictionary]) {
             $ht = @{}
-            foreach ($p in $Param) {
-                Write-Host $p.Key
+            foreach ($p in $Param.GetEnumerator()) {
                 $ht[$p.Key] = $p.Value
             }
             $Parameters[$Key] = [PSCustomObject]$ht
         } else {
             $Parameters[$Key] = $Param
         }
     }
+
     $Parameters = ($Parameters | ConvertTo-Json -Depth 10 -Compress)
     $AdditionalProperties = [System.Collections.Hashtable]@{}
     foreach ($Prop in $task.AdditionalProperties) {