GitlabAPI経由でグループ+メンバー一覧をPowershellで取得する

PS C:\WINDOWS\system32> Set-ExecutionPolicy RemoteSigned

実行ポリシーの変更
実行ポリシーは、信頼されていないスクリプトからの保護に役立ちます。実行ポリシーを変更すると、about_Execution_Policies
のヘルプ トピック (https://go.microsoft.com/fwlink/?LinkID=135170)
で説明されているセキュリティ上の危険にさらされる可能性があります。実行ポリシーを変更しますか?
[Y] はい(Y)  [A] すべて続行(A)  [N] いいえ(N)  [L] すべて無視(L)  [S] 中断(S)  [?] ヘルプ (既定値は "N"): y

$URL_BASE = 'https://gitlab.syachiku.local/api/v4/groups'
$TOKENS = 'jLoyJioqJvwQc8E5Nwd6'
$RESULT_CSV = 'gitlab.csv'

# 自己証明書のサイトの場合に、証明書を無視する設定
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


# Groupを取得
$URL_GROUPS = $URL_BASE+'?private_token='+$TOKENS
$gitlabGroups = @()
$gitlabGroups = Invoke-RestMethod -Method get -Uri $URL_GROUPS

# Memberを取得
foreach ($gitlabGroup in $gitlabGroups) {
    $URL_MEMBERS = $URL_BASE+'/'+$gitlabGroup.id+'/members?private_token='+$TOKENS
    $gitlabMembers = Invoke-RestMethod -Method get -Uri $URL_MEMBERS
    $gitlabMembers | Add-Member -MemberType NoteProperty -Name 'group_name' -Value $gitlabGroup.name
    # CSVファイルに追記
    $gitlabMembers | Select-object "group_name", "name","username","state", "access_level" | Export-Csv -Path $RESULT_CSV -Encoding Default -Append -NoTypeInformation
}

"group_name","name","username","state","access_level"
"Group1","Administrator","root","active","50"
"Group1","user1","user1","active","40"
"Group1","user2","user2","active","30"
"Group1","user3","user3","active","30"
"Group1","user4","user4","active","30"
"Group1","user5","user5","active","30"
"Group1","user6","user6","active","30"
"Group1","user7","user7","active","30"
"Group1","user8","user8","active","30"
"Group1","user9","user9","active","30"
"Group1","user10","user10","active","30"
"Group2","Administrator","root","active","50"
"Group2","user2","user2","active","40"
"Group2","user3","user3","active","30"
"Group2","user1","user1","active","30"

# Page変数を使う
$page=1

# Groupを取得するURL(ページ指定あり)
$URL_GROUPS = $URL_BASE+'?private_token='+$TOKENS+'&page='+$page

$resultGroups = @()
:label01 while($true){
  $gitlabGroups = @()
  $gitlabGroups = Invoke-RestMethod -Method get -Uri $URL_GROUPS

  # 必要な項目を取得->resultGroupに追加
  foreach($gitlabGroup in $gitlabGroups){
    $resultGroups += @{ "group_name" = $gitlabGroups.name }
  }

  # もし20以上のグループであれば再度取得
  if(gitlabGroups.count -eq '20'){
    $page ++
    continue label01
  }
  break
}