AWS Cognito クライアントの初期化

cognito.php

<?php
$client = new Aws\CognitoIdentityProvider\CognitoIdentityProviderClient([
  'version' => 'latest',
  'region' => REGION,
  'credentials' => [
    'key' => IAM_ACCESS_KEY,
    'secret' => IAM_SECRET_KEY,
  ],
]);

idpool.php

<?php
$idpool = Aws\CognitoIdentity\CognitoIdentityClient::factory([
  'version' => 'latest',
  'region' => REGION,
  'credentials' => [
    'key' => IAM_ACCESS_KEY,
    'secret' => IAM_SECRET_KEY,
  ],
]);