How to read JSON data from Powershell script and iterate through it - json

Question

I'm starting to learn Powershell and I'm currently trying to read in a JSON file.
Here is my JSON file (named 'versions.json'):
{
"versions": {
"1.0.0": {
"Component1": "1.0.0",
"Component2": "1.0.0",
"Component3": "1.0.0",
},
"2.0.0": {
"Component1": "2.0.0",
"Component2": "2.0.0",
"Component3": "2.0.0"
}
}
}
I would like to read in this JSON file and print out the versions and what they consist of. For example, 1.0.0 consists of Component 1 at 1.0.0, Component 2 at 1.0.0, and Component 3 at 1.0.0.
I'm currently reading in the JSON file with this Powershell line:
$json = (Get-Content "versions.json" -Raw) | ConvertFrom-Json
Now, I want to iterate through $json and print out its data. I'm currently using this:
foreach($v in $json.versions) {
echo "Data: $v"
}
But, when I run my Powershell script, it prints:
Data: #{1.0.0=; 2.0.0=}
Is this the proper output? I was expecting to at least see two entries for 1.0.0 and 2.0.0. This feels like it may be a syntax issue but I am unsure. I am using Powershell version 5.

Answer 1

After using ConvertFrom-Json you have a PowerShell object which is a single item that has a versions property which has two sub-properties 1.0.0 and 2.0.0. Your ForEach is attempting to iterate them like a collection, but its just a single object.
However you can iterate over the properties as follows to get the result I think you wanted:
($Json.versions.psobject.properties) | foreach-object { "Data: $($_.name)" }