How can we create dynamic json object in powershell - json

Question

I am creating powershell script which generation json file where i want to create json object runtime based on mentioned name in $env variable and put some value inside it as json.
$env="prd,test,dev,..,...." # there are total 15 env & $env has 1 and more env.
Desire JSON :
{
"prd" : {
"Sid": "xxxxxx" }
"test" : {
"Sid": "xxx" }
"So on" : {}
}
Trying to write script:
$env="prd,test,..,...,.."
$env=$env - split ","
For ( $i = 0 $i -le ($env.length -1) ;$i+=1){
$env[$i] = New-object System.Collection.ArrayList
$env[$i].add("anydata10")
}
But this approach not working well since $env variable has any 1 or more env value.
In the powershell, can we create dynamic json object at runtime and any other approch to archive it ?

Answer 1

For the root-level object ({"prd":{...}, "test":{...}}), I'd suggest an ordered dictionary, then create a custom object with the Sid property for each property:
# prepare env keys
$environments = "prd,test,dev,stg,qa" -split ","
# create ordered dictionary
$jsonObject = [ordered]#{}
foreach($envName in $environments){
# create 1 property, the value of which will be an object with a `Sid` property
$jsonObject[$envName] = [pscustomobject]#{
# resolve the correct `Sid` value from somewhere
Sid = Get-SidForEnv $envName
}
}
# convert the whole thing to json
$jsonObject |ConvertTo-Json -Depth 3
Based on your comments about getting the correct sid value "from somewhere", I assume you already have a function that translates prd to prodsid1 and so forth, so simply replace Get-SidForEnv with whatever function that is :)

Answer 2

I'm not sure I understand what you're trying to achieve. You can access environment variables using $env. So, if you have those values prd,test,... in some environment variable and you want to generate new environment variables based on those, you can do it like this:
# $env:foo contains 'prd,test'
$env:foo -split ',' | % {
New-Item -Path Env: -Name $_ -Value (#("anydata10") | ConvertTo-Json)
}