Modifies the Amazon Lightsail instance metadata parameters on a running or stopped instance. When you modify the parameters on a running instance, the <code>GetInstance</code> or <code>GetInstances</code> API operation initially responds with a state of <code>pending</code>. After the parameter modifications are successfully applied, the state changes to <code>applied</code> in subsequent <code>GetInstance</code> or <code>GetInstances</code> API calls. For more information, see <a href="https://lightsail.aws.amazon.com/ls/docs/en_us/articles/amazon-lightsail-configuring-instance-metadata-service">Use IMDSv2 with an Amazon Lightsail instance</a> in the <i>Amazon Lightsail Developer Guide</i>.

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}