How to perform a NPrinting On-Demand API call "get /ondemand/requests/{requestId}/result" with JWT authentication

This is an example for how to execute an API call "get /ondemand/requests/{requestId}/result" for the NPrinting On-Demand API as described in here: https://help.qlik.com/en-US/nprinting/February2020/APIs/NP+API/index.html?page=36

Preconditions for the API call:
- The API call was executed in Windows PowerShell ISE
- A JWT token was created in here: https://jwt.io/
- A first API call "post /ondemand/requests" was executed in order to generate a request ID which was used in the call "get /ondemand/requests/{requestId}/result"



[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

add-type @"
using System.Net;
using System.Security.Cryptography.X509Certificates;
public class TrustAllCertsPolicy : ICertificatePolicy {
    public bool CheckValidationResult(
        ServicePoint srvPoint, X509Certificate certificate,
        WebRequest request, int certificateProblem) {
        return true;
    }
}
"@
[System.Net.ServicePointManager]::CertificatePolicy = New-Object TrustAllCertsPolicy

$hdrs = @{}
$body = '{}'
 
$hdrs.Add("Authorization","Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwidX...9qTTUWGDhUxNBYHK7MCveUStkY_JfRyw7HHJNglJNjCCLH-mNvA")
$url = "https://qlikserver1.domain.local:4993/api/v1/ondemand/requests/f2d845de-8464-45ef-8275-31919a84b2c7/result"
Invoke-RestMethod -Uri $url -Method Get -ContentType 'application/json' -Headers $hdrs  | ConvertTo-Json -Depth 10