Appending to a URL with powershell - powershell

Question

function Get-Data(){
[PSObject[]]$pid = ''
$getUri1 = 'https://playbook2.com/data/project/folder/28220'
$projectIds = wget $getUri1 -UseDefaultCredentials |
ConvertFrom-JSON | Select data | select -Expand data | select id
Write-Host $projectIds
#obtain all the project ids
ForEach-Object{
[PSObject[]]$pid += $projectIds.id
}
Write-Host $pid
$uri3 = "https://playbook2.com/data/project/export/projects-tasks?projectIds[]="
$getIds = [PSObject[]]$pid -join "&projectIds[]="
$getUri2 = $uri3 + $getIds
$of = "\\ant\dept\DCGSI\Extracts\Time_Tracking_Tasks.xlsx"
Write-Host $getUri2
#retrieve excel files of tasks from each sub-folder
wget $getUri2 -outfile $of -UseDefaultCredentials
}
This code is an adaptation of some other code that I wrote. The 5 other scripts work fine. The main difference is that the other code has to loop through multiple folders and gets the project IDs under each folder, but this code only has to go through a single folder. Now in the other code the $uri3, $getIds code works fine and I get an export. The problem I am seeing in this code is that it isn't joining the URL the way I expect.
https://playbook2.com/data/project/export/projects-tasks?projectIds[]=######&projectIds[]=####### is the expected and previously seen output to get all the project data i need.
The problem with the above script is that it is giving https://playbook2.com/data/project/export/projects-tasks?projectIds[]=&projectIds[]=######&projectIds[]=####### which is invalid.
is there a way that I can tell it to do just $pid for the first item in the object and then -join the "&projectIds[]=" on the next n until the end of the list? I tried
[PSObject[]]$pid | select -Skip 1 -join "&projectIds[]="
and
[PSObject[]]$pid | Select-Object -Skip 1 -join "&projectIds[]="
but that results in nothing being appended.

Answer 1

I found a couple of "mistakes" in your script.
First is that you are using the variable $pid which is an system default variable. You can check the system global variables by typing
Get-Variable
Secondly $pid is defined with an empty string. The correct way to initialize a PSObject is with $myVar = New-Object PSObject. Replace [PSObject[]]$pid = '' with $myProjectIds = New-Object PSObject
For readability I took the liberty to rewrite your script.
function Get-Data(){
$GetProjectsUri = 'https://playbook2.com/data/project/folder/28220'
$ExportProjectsUri = 'https://playbook2.com/data/project/export/projects-tasks?'
$ExportFilePath = "\\ant\dept\DCGSI\Extracts\Time_Tracking_Tasks.xlsx"
$GetProjectsJson = Invoke-WebRequest -Uri $GetProjectsUri -UseDefaultCredentials
Write-Output $GetProjectsJson
$Projects = ConvertFrom-JSON -InputObject $GetProjectsJson
Write-Output $Projects
foreach ($Project in $Projects) {
$ProjectId = $Project.data.id
# Check if ProjectId exists
if ($ProjectId) {
$ExportProjectsUri = $ExportProjectsUri + 'projectIds[]=' + $ProjectId
}
}
Write-Output $ExportProjectsUri
Invoke-WebRequest Invoke-WebRequest -Uri $ExportProjectsUri -outfile $ExportFilePath -UseDefaultCredentials
}
Cheers
Glenn