Passing JSON Parameters into the Azure DevOps Powershell Script

Question

I'm trying to pass my variable into my JSON post parameters, however, the below code only works for hardcoding the values, but I need to pass the $var to the principal parameter:

$var="demo"

Write-Host $var


$postParams = @'
{   "scope": "DemoScope","principal": "$($var)" }
'@

So far I tried like $(var) and $($var) in the above script but nothing worked.

Answer 1

Because you use ' ' the variable can't be used, I like this way to create the json:

$postParams = @{
    scope = "DemoScope"
    principal = $var
} | ConvertTo-Json

# Result:
{
    "principal": "demo",
    "scope": "DemoScope"
}

Another way it to use " instaed of ' :

$postParams = @"
{    "scope": "DemoScope","principal": "$var" }
"@