Powershell - Export array to CSV in different columns - powershell

Question

I am trying to automate below API calls from a csv file.
http_uri
/ModuleName/api/12345/moverequest/MoveRequestQueue?batchSize=200
/ModuleName/api/Portal/GetGarageLocations?email=Dummy#mail.com
/ModuleName/api/DeliveryDate/CommitEta?ref=H7J3M1EA4LF
/ModuleName/api/35345/moverequest/MoveRequestQueue?batchSize=500
The output should be like below in a csv file.
ScenarioName Parameter Value
MoveRequestQueue batchSize 200
GetGarageLocations email Dummy#mail.com
CommitEta ref H7J3M1EA4LF
MoveRequestQueue batchSize 500
I am using below code
$csv = Import-Csv C:\Powershell\Documents\Source.csv
$scenario = #()
ForEach ($row in $csv){
$httpuri = $($row.http_uri)
#Iterating through CSV rows and segregate values
if ($httpuri -match "="){
$equalarr = $httpuri -split '='
if ($equalarr[0] -match "\?"){
$questionarr = $equalarr[0] -split '\?'
$scenarionamearr = $questionarr[0] -split '/'
$totalelements = $scenarionamearr.Count
$scenarioname = $scenarionamearr[$totalelements-1]
$Scenario += $scenarioname
$Scenario += $questionarr[1]
$Scenario += $equalarr[1]
}
}
}
#Adding columns to csv
$columnName = '"Scenario","Parameter","Value"'
Add-Content -Path C:\Powershell\Documents\Output.csv -Value $columnName
#Writing values to CSV
$Scenario | foreach { Add-Content -Path C:\Powershell\Documents\Output.csv -Value $_ }
But Outout is generated like below
Scenario Parameter Value
DequeueMoveRequestQueue
batchSize
200
GetCarrierLocations
email
x-qldanxqldanx
Since i am a newbie, searched a lot to solve this issue but couldn't succeed. Please throw some light on this.
Thanks in advance....

Answer 1

If you store your scenarios in structured objects you can use Powershell's built in Export-Csv command to generate your csv.
So, instead of
$Scenario += $scenarioname
$Scenario += $questionarr[1]
$Scenario += $equalarr[1]
store an array of powershell objects:
$Scenario += [PSCustomObject]#{
"Scenario" = $scenarioname;
"Parameter" = $questionarr[1];
"Value" = $equalarr[1];}
Then, when creating the csv file, just use Export-Csv:
$Scenario | Export-Csv -NoTypeInformation -Path C:\Powershell\Documents\Output.csv

Answer 2

So the issue is that you make an empty array, then add strings to it one at a time, which just makes it an array of strings. Then when you output it to the file it just adds each string to the file on its own line. What you want to do is create an array of objects, then use the Export-Csv cmdlet to output it to a CSV file.
Creating an array, and then adding things to it one at a time is not a good way to do it. PowerShell has to recreate the array each time you add something the way you're doing it. Better would be to have a pipeline that outputs what you want (objects, rather than strings), and capture them all at once creating the array one time. Or even better, just output them to the CSV file and not recollect them in general.
$CSV = Import-Csv C:\Powershell\Documents\Source.csv
$CSV.http_uri -replace '^.*/(.*)$','$1'|ForEach-Object{
$Record = $_ -split '[=\?]'
[PSCustomObject]#{
ScenarioName = $Record[0]
Parameter = $Record[1]
Value = $Record[2]
}
} | Export-Csv -Path C:\Powershell\Documents\Output.csv -Append