1ToDo/Get-ApplicationCategory.ps1

<#
 
.COPYRIGHT
Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
See https://github.com/microsoftgraph/powershell-intune-samples/blob/master/LICENSE for license information.
 
#>


Function Get-ApplicationCategory() {
    
        <#
    .SYNOPSIS
    This function is used to get application categories from the Graph API REST interface
    .DESCRIPTION
    The function connects to the Graph API Interface and gets any application category
    .EXAMPLE
    Get-ApplicationCategory
    Returns any application categories configured in Intune
    .NOTES
    NAME: Get-ApplicationCategory
    #>

    
        [cmdletbinding()]
    
        param
        (
            $Name
        )
    
        $graphApiVersion = "Beta"
        $Resource = "deviceAppManagement/mobileAppCategories"
    
        try {
    
            if ($Name) {
    
                $uri = "https://graph.microsoft.com/$graphApiVersion/$($Resource)"
                (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value | Where-Object { ($_.'displayName').contains("$Name") }
    
            }
    
            else {
    
                $uri = "https://graph.microsoft.com/$graphApiVersion/$($Resource)"
                (Invoke-RestMethod -Uri $uri -Headers $authToken -Method Get).Value
    
            }
    
        }
    
        catch {
    
            $ex = $_.Exception
            Write-Host "Request to $Uri failed with HTTP Status $([int]$ex.Response.StatusCode) $($ex.Response.StatusDescription)" -f Red
            $errorResponse = $ex.Response.GetResponseStream()
            $reader = New-Object System.IO.StreamReader($errorResponse)
            $reader.BaseStream.Position = 0
            $reader.DiscardBufferedData()
            $responseBody = $reader.ReadToEnd();
            Write-Host "Response content:`n$responseBody" -f Red
            Write-Error "Request to $Uri failed with HTTP Status $($ex.Response.StatusCode) $($ex.Response.StatusDescription)"
            
            break
    
        }
    
    }