Get values from JSON with Powershell - json

Question

Very beginner question. I'm trying to get certain values from JSON with Powershell.. Specifically, I want to list the Services: TEST00000 and FAKE only.
When I run the script below, I get this:
TEST00000 FAKE
--------- ----
#{Enabled=True; Processed=2; Sent=3; Failed=4; Downloaded=5} #{Enabled=True}
How can I get a list of only the services?
More importantly, how do I list only the services which has the key/value Enabled=True present inside of them?
Here is the code:
$JSON = '{
"Envs": {
"DEV": {
"Services": {
"TEST00000": {
"Enabled": true,
"Processed": 2,
"Sent": 3,
"Failed": 4,
"Downloaded": 5
},
"FAKE": {
"Enabled": true
}
}
}
},
"Component": {
"Digger": {
"Envs": {
"DEV": {
"DownloadE": 4
}
}
}
}
}'
$jsonobj = ConvertFrom-Json -inputObject $JSON
$jsonobj.Envs.DEV.Services

Answer 1

To get the name of each Services property. You can use Get-Member like user2734259 did or you can use the psobject property which stores useful information about an object.
$ServiceNames = $jsonobj.Envs.DEV.Services.psobject.properties.name
Once you have the names you can loop over them and filter on the sub-property Enabled
$jsonobj.Envs.DEV.Services.psobject.properties.name | ForEach-Object {
$_ | Where-Object {$jsonobj.Envs.DEV.Services.$_.Enabled -eq $True}
}

Answer 2

This should allow you to get the names dynamically, regardless of the service name in your JSON:
$JSON = '{
"Envs": {
"DEV": {
"Services": {
"TEST00000": {
"Enabled": true,
"Processed": 2,
"Sent": 3,
"Failed": 4,
"Downloaded": 5
},
"FAKE": {
"Enabled": true
}
}
}
},
"Component": {
"Digger": {
"Envs": {
"DEV": {
"DownloadE": 4
}
}
}
}
}'
$jsonobj = ConvertFrom-Json -inputObject $JSON
$enabledServices = $NULL
$disabledServices = $NULL
# Since the service names are arbitrary
# create an object that contains only
# objects whose MemberType is NoteProperty
$strServiceNames = #($($jsonobj.Envs.DEV.Services | Get-Member | Where { $_.MemberType -eq "NoteProperty" } | Select Name).Name)
$pscoServiceNames = [PSCustomObject]#{Names=$strServiceNames}
foreach($serviceName in $pscoserviceNames.Names)
{
# dynamically access the service name
# from $jsonobj.Envs.DEV.Services
$serviceStatus = $jsonobj.Envs.DEV.Services.$serviceName.Enabled
# parse results based on value of .Enabled
if($serviceStatus.ToString() -eq "True")
{
$enabledServices = [Array]$enabledServices + [PSCustomObject]#{Name = $serviceName;Enabled = $serviceStatus}
}
else
{
$disabledServices = [Array]$disabledServices + [PSCustomObject]#{Name = $serviceName;Enabled = $serviceStatus}
}
}
# Show the results
Write-Output "`nEnabled Services`n"
$enabledServices | Format-List
Write-Output "`nDisabled Services`n"
$disabledServices | Format-List
If anything is unclear let me know and I can explain in more detail
Hope this helps you out.
Happy 'shelling!