CODEWITHSUNDEEP
powershell
Ralph
Ralph

Reputation: 468

Build a string with a JSON object in powershell

How do I write val1 in the below string? This should be really straight forward surely, but I can't find an example anywhere

$jsobj = @"
    {
    val1 : "test",
    val2 : "test1"
    }
"@ | ConvertFrom-Json


Write-Host @"
    Value of val1: $jsobj.val1
"@

Upvotes: 0

Views: 397

Answers (1)

AdminOfThings
AdminOfThings

Reputation: 25001

You will need to prevent early expansion of your variable to access its property value. The sub-expression operator $() allows everything inside to be evaluated as an expression.

$jsobj = @"
    {
    val1 : "test",
    val2 : "test1"
    }
"@ | ConvertFrom-Json


Write-Host @"
    Value of val1: $($jsobj.val1)
"@

When a variable is inside an expandable string (one with outer double quotes), the variable is substituted with its ToString() value. Anything after that variable is treated as part of the string rather than the variable. See below for a trivial example.

$str = 'my string'
"$str.Length"
my string.Length

Upvotes: 2

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