Get-JournalExpansionIndex.ps1

function Get-JournalExpansionIndex
{
  <#
      .SYNOPSIS
      Retrieves the journal expansion index from World of Warcraft.
   
      .DESCRIPTION
      The function fetches a list of expansions from the World of Warcraft journal using the Blizzard API. An optional switch is available to return raw JSON data.
   
      .PARAMETER Raw
      Optional switch to return the raw JSON response from the API.
   
      .EXAMPLE
      Get-JournalExpansionIndex
      Retrieves the formatted journal expansion index.
   
      .EXAMPLE
      Get-JournalExpansionIndex -Raw
      Retrieves the raw JSON response of the journal expansion index.
   
      .NOTES
      This function requires the World of Warcraft API to be accessible and valid credentials to be configured in the global variables.
   
      .LINK
      https://develop.battle.net/documentation/world-of-warcraft/game-data-apis
  #>


  param(
    [Parameter(Position = 0, HelpMessage = 'Return raw JSON data.')]
    [Switch]$Raw
  )

  if(Test-WoWApiConnection)
  {
    $URL = '{0}data/wow/journal-expansion/index?namespace=static-{1}&locale={2}' -f $Global:WoWBaseURL, $Global:WoWRegion, $Global:WoWLocalization
  
    try 
    {
      $result = Invoke-RestMethod -Uri $URL -Headers $Global:WoWApiAuthHeader -TimeoutSec 5
      if($result -and $result.PSobject.Properties.name -contains 'tiers')
      {
        if($Raw)
        {
          return $result
        }
        else
        {
          Write-Verbose -Message 'This is a formatted result. To get the native result use the -Raw parameter.'
          
          return $result |
          Select-Object -ExpandProperty tiers |
          Sort-Object -Property id
        }
      }
    }
    catch 
    {
      $statusCode = $_.Exception.Response.StatusCode.value__
      $status = $_.Exception.Response.StatusCode
      Write-Verbose -Message ('Bad status code ({0}) {1}' -f $statusCode, $status)     
    }  
  }
}