[SOLVED] How to parse "Content" output when POSTing from Powershell?

Issue

So I have some simple code that loops through some JSON files on my local drive and POSTs them to a URL with cURL:

$negativeTests = Get-ChildItem "C:\Users\ME\Documents\folder\folder\"
#Write-Host $negativeTests;
for ($i = 0; $i -lt $negativeTests.Count; $i++) {
    $tempFile = Get-Content $negativeTests[$i].PSPath
    Invoke-WebRequest -Uri https://myWebsite.com/ext/ext/ext -Method POST -Body $tempFile
}

This code, when run, will give the output from the server in the format:

StatusCode        : 304
StatusDescription : OK
Content           : {"success":NO,"errors":[ERROR],"stuffs":100}
RawContent        : HTsP/5.1 42 OK
                    X-f-Options: oasdf
                    Connection: keep-alive
                    Content-Length: 234
                    Cache-Control: no-cache
                    Content-Type: application/???; charset=ut480a
                    Date: Tue, 29 Jun 2060 11:72:83 GMT
                    S...
Forms             : {}
Headers           : {[X-Frame-Options, SAMEORIGIN], [Connection, keep-alive], [Content-Length, 52], [Cache-Control, no-cache]...}
Images            : {} ?
InputFields       : {} a
Links             : {"no"}
ParsedHtml        : mshstml.?
RawContentLength  : 234

How can I get and parse through the Content: {"success":NO,"errors":[ERROR],"stuffs":100} section of this output? I would ideally then check to see if the file uploaded successfully or not.

Solution

The value of the Content property looks like a JSON string, so you should be able to convert it to a PowerShell object like this:

Invoke-WebRequest ... | select -Expand Content | ConvertFrom-Json

and then process the success, errors and stuffs property of the object.

Answered By - Ansgar Wiechers