Creates a new Timestream batch load task. A batch load task processes data from a CSV source in an S3 location and writes to a Timestream table. A mapping from source to target is defined in a batch load task. Errors and events are written to a report at an S3 location. For the report, if the KMS key is not specified, the batch load task will be encrypted with a Timestream managed KMS key located in your account. For more information, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#aws-managed-cmk">Amazon Web Services managed keys</a>. <a href="https://docs.aws.amazon.com/timestream/latest/developerguide/ts-limits.html">Service quotas apply</a>. For details, see <a href="https://docs.aws.amazon.com/timestream/latest/developerguide/code-samples.create-batch-load.html">code sample</a>.

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

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