How do I access variables in execution script from executed script [duplicate] - powershell

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Parameter interpretation when running jobs
(1 answer)
Closed 3 years ago.
I have a running PS1-script (start-webserver.ps1) running as a "web server" that is listening for http calls that executes a script (example: script2.ps1) executed in the call to the "web server".
I am executing the script with Start-Job. How can I in the executed script (script2.ps1) access variables in start-webserver.ps1?
Start-WebServer.ps1
$allObjects = #()
foreach ($item in $items) {
$objectUID = $item.Attributes.Value
$propertiesHash = [ordered]#{UID = $objectUID}
$properties = $items.ChildNodes
foreach ($property in $properties.ChildNodes) {
$propertyName = $property.Attributes.Value
$propertyValue = $property.innerText
$propertiesHash.Add($propertyName, $propertyValue)
}
$object = New-Object PSObject -Property $propertiesHash
$allObjects += $object
}
$job = Start-Job -Name "$identifier" -FilePath "Path\To\ScriptToExecute.ps1" -InputObject $allObjects -ArgumentList $propertiesHash
ScriptToExecute.ps1
'Script executed!' | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
$propertiesHash | Get-Member | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
$allObjects | Get-Member | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
I end up with an "output.txt" with the following content:
Script executed!
Empty line

Answer 1

You need to define in ScriptToExecute that you are receiving params
By default it is set in the $args variable.
In your case, simply using $args[0] will be sufficient.
i.e.:
'Script executed!' | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
$args[0] | Get-Member | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
If you want to also receive $allObjects, you need to modify Start-WebServer to this:
$job = Start-Job -Name "$identifier" -FilePath "Path\To\ScriptToExecute.ps1" -InputObject $allObjects -ArgumentList #($propertiesHash,$allObjects)
then do this:
'Script executed!' | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
$args[0] | Get-Member | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
$args[1] | Get-Member | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
Nicer way of doing this is to specify the param in ScriptToExecute
i.e.:
param($propertiesHash, $allObjects)
'Script executed!' | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
$propertiesHash | Get-Member | Out-File -Path ".\output.txt" -Encoding UTF8 -Append
$allObjects | Get-Member | Out-File -Path ".\output.txt" -Encoding UTF8 -Append