This API operation initiates a Face Liveness session. It returns a <code>SessionId</code>, which you can use to start streaming Face Liveness video and get the results for a Face Liveness session. You can use the <code>OutputConfig</code> option in the Settings parameter to provide an Amazon S3 bucket location. The Amazon S3 bucket stores reference images and audit images. You can use <code>AuditImagesLimit</code> to limit of audit images returned. This number is between 0 and 4. By default, it is set to 0. The limit is best effort and based on the duration of the selfie-video.

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

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