How to update a release pipeline variable with 'dot' in its name?

[PraveenKalavai]

I'm trying to update a release pipeline variable during release in a PowerShell task, with a Rest API call.
But it is throwing error since the variable has 'dot' in it.
Here is the variable : folders.0.environments.0.variables.0.value
It corresponds to a path in a json file which I would like to update during the release pipeline and use in the json file in a subsequent task.
So, how do I handle updating such pipeline variables with dot in them?
The script runs perfectly fine if I try to update a normal variable like "variable1".

• Here is the code snippet if anyone would like to try and help resolve the issue.

• Allow the Agent job to "Allow scripts to access the OAuth token"

• Have a variable with 'dot' in it and make it "settable at release time"

• Allow "edit release pipeline" in the security

$url = "https://vsrm.dev.azure.com/{Org}/{Project}/_apis/Release/definitions/$($env:RELEASE_DEFINITIONID)?api-version=5.0"

$ba = (":{0}" -f $env:SYSTEM_ACCESSTOKEN)
$ba = [System.Text.Encoding]::UTF8.GetBytes($ba)
$ba = [System.Convert]::ToBase64String($ba)
$header = @{Authorization=("Basic{0}" -f $ba);ContentType="application/json"}
$pipeline = Invoke-RestMethod -Uri $url -Headers $header 
Write-Host "Pipeline = $($pipeline | ConvertTo-Json -Depth 100)"

write-host "==========================================================" 
write-host "Update an existing variable named "folders.0.environments.0.variables.0.value" to its new value "
write-host "==========================================================" 

$pipeline.variables.folders.0.environments.0.variables.0.value.value = "updated value"

# $pipeline.variables.variablename.value = "updated value"
# works if variable value does not have a dot in it.
# example : $pipeline.variables.variable1.value = "updated value"  

#****************** update the modified object **************************
$json = @($pipeline) | ConvertTo-Json -Depth 99

$updatedef = Invoke-RestMethod -Uri $url -Method Put -Body $json -ContentType "application/json" -Headers $header

[PraveenKalavai]

Figured it out!
I just had to use the variable with quotes.
ex: $pipeline.variables.'folders.0.environments.0.variables.0.value'.value = "updated value"

Closing this!