将JSON参数传递到Azure DevOps Powershell脚本中

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" }
"@