Struggling to export PowerShell job information to excel - excel

Question

I have a PowerShell script that is running a web request as part of a job. With the script block that is run by the job I am logging the Endpoint Uri and the response time. and then after all the jobs are finished but before I remove the jobs I am trying to export the result into excel.
PS Verion:
Major Minor Build Revision
----- ----- ----- --------
5 1 17763 503
Code:
$Code = {
Param(
[array]$Domain,
[array]$Services,
[array]$TestData,
[string]$Path
)
$Log = #()
## Get Random School ##
$Random = Get-Random -InputObject $TestData -Count 1
## Get Random Service ##
$RandService = Get-Random -InputObject $Services
## Get Random Endpoint ##
$ServiceEndpoints = Get-Content "$Path\Service.Endpoints.json" | Out-String | ConvertFrom-Json
$GatewayEndpoints = $ServiceEndpoints.Services.$RandService.Gateway
$RandomEndpoint = Get-Random -InputObject $GatewayEndpoints
$Headers = #{
"Authorization" = "Bearer" + ' ' + $Random.Token
}
$Uri = 'https://' + $Domain + $RandomEndpoint
Try {
$TimeTaken = Measure-Command -Expression {
$JsonResponse = Invoke-WebRequest -Uri $Uri -Headers $Headers -ContentType 'application/json' -Method Get -UseBasicParsing
}
}
Catch {
}
$ResponseTime = [Math]::Round($TimeTaken.TotalMilliseconds, 1)
$LogItem = New-Object PSObject
$LogItem | Add-Member -type NoteProperty -Name 'Endpoint' -Value $Uri
$LogItem | Add-Member -type NoteProperty -Name 'Time' -Value $ResponseTime
$Log += $LogItem
Write-Host $Log
}
#Remove all jobs
Get-Job | Remove-Job
#Start the jobs. Max 4 jobs running simultaneously.
foreach($Row in $TestData){
While ($(Get-Job -state running).count -ge $MaxThreads){
Start-Sleep -Milliseconds 3
}
Start-Job -Scriptblock $Code -ArgumentList $Domain, $Services, $TestData, $Path
}
#Wait for all jobs to finish.
While ($(Get-Job -State Running).count -gt 0) {
start-sleep 1
}
$Log | Export-XLSX -Path .\Test.Results\Performance\Performance.Test.Log.xlsx -ClearSheet
#Get information from each job.
foreach($Job in Get-Job) {
$Info = Receive-Job -Id ($Job.Id)
}
#Remove all jobs created.
Get-Job | Remove-Job
I cannot seem to get the endpoint uri and the response time out of the script block. When I try to export the $Log, all that happens is it creates an empty excel file.
Write-Host $Log
#{Endpoint=https://domain/customer/v1/years/2019/marks; Time=1233.3}
#{Endpoint=https://domain/customer/v1/years/2019/marks; Time=2131.7}

Answer 1

You've to return $Log in your script block, since $Log lives in another scope. You can return $Log in your $Code script block, and finally, fetch it via Receive-Job.
Change your code to:
$Code = {
...
$Log += $LogItem
Write-Host $Log
$Log # return via pipeline to the caller
}
As Niraj Gajjar's answer suggests you can use Export-Csv cmdlet to create an Excel file:
#Get information from each job.
foreach($Job in Get-Job) {
Receive-Job -Id ($Job.Id) | Export-CSV -Path .\Test.Results\Performance\Performance.Test.Log.xlsx -Append -NoTypeInformation
}

Answer 2

Global variables inside of jobs aren't visible in the main script since job is running in a new session with its own global space.

Answer 3

You can use Export-Csv to open file in excel.
sample code with multiple jobs to CSV format :
$jobs = #() # INITILIZING ARRAY
$jobs += Start-Job { appwiz.cpl } # START JOB 1 AND ADDING TO ARRAY
$jobs += Start-Job { compmgmt.msc } # START JOB 2 AND ADDING TO ARRAY
$jobs += Start-Job { notepad.exe } # START JOB 3 AND ADDING TO ARRAY
foreach ( $job in $jobs) # INTERATION OF JOBS
{
Export-Csv -InputObject $job "C:\result.csv" -Append # SAVING TO FILE
}
Note : There are some internal properties of job which are not converted by CSV because depth is 1 but some basic properties are available.