$clientid = "アプリケーション（クライアント）ID"
$clientsecret = "クライアントシークレットの値"
$subscriptionid = "サブスクリプションID"
$tenantid = "テナントID"

resource = "https://management.azure.com/"
$tokenendpoint = "https://login.microsoftonline.com/$tenantid/oauth2/token"
$body = @{
    grant_type    = "client_credentials"
    resource      = $resource
    client_id     = $clientid
    client_secret = $clientsecret
}
$tokenresponse = Invoke-RestMethod -Method Post -Uri $tokenendpoint -Body $body -ContentType "application/x-www-form-urlencoded"
$accesstoken = $tokenresponse.access_token

$headers = @{
    'Authorization' = "Bearer $accesstoken"
    'Content-Type'  = 'application/json'
}

$dateEnd = "2025-01-12" #請求期間最終日の翌日
$bullingPeriodCurrentStart = "2024-12-12" #請求期間開始日
$dateStart = $bullingPeriodCurrentStart + "T00:00:00.0000000Z"
$bullingPeriod = "202501" #請求期間（YYYYMM）
$requesturi = "https://management.azure.com/subscriptions/$subscriptionid/providers/Microsoft.Billing/billingPeriods/$bullingPeriod/providers/Microsoft.Consumption/usageDetails?api-version=2019-01-01&$filter=properties/usageStart ge '$dateStart' and properties/usageEnd lt '$dateEnd'"

$ret = (Invoke-RestMethod -Uri $requesturi -Headers $headers -Method Get)
$ret.value.properties |Export-Csv .\202501.csv #CSVファイルのパス
start .\202501.csv #CSVファイルのパス