Mastering Windows PowerShell Scripting - Third Edition

ConvertFrom-Json

The ConvertFrom-Json command is used to turn a JSON document into an object, for example:

'{ "Property": "Value" }' | ConvertFrom-Json 

ConvertFrom-Json creates a PSCustomObject.

JSON understands a number of different data types, and each of these types is converted into an equivalent .NET type. The following example shows how each different type might be represented:

$object = @"{ 
    "Decimal": 1.23, 
    "String": "string", 
    "Int32": 1, 
    "Int64": 2147483648, 
    "Boolean": true 
} 
"@ | ConvertFrom-Json 

Inspecting individual elements after conversion reflects the type, as demonstrated in the following example:

PS> $object.Int64.GetType() PS> $object.Boolean.GetType() IsPublic IsSerial Name BaseType -------- -------- ---- -------- True ...