Heartbeat of the uploader: the uploading page calls this about every minute while it hashes or sends bytes, so the batch is told apart from an abandoned one. 409 UPLOAD_BATCH_NOT_DISCARDABLE once the batch is no longer in progress.

Authorization

Send a personal access token with every request.

• Authorization: Bearer PAT

Path parameters

• batchIdstringrequired

Header parameters

• Idempotency-Keystring

  Optional idempotency key, at most 255 characters (UUIDv4 recommended). A repeated key returns the first response byte-for-byte, including a 5xx. The same key with a different body, or a second in-flight request, returns 409 IDEMPOTENCY_CONFLICT. Keys are unique per tenant and retained for 24 hours.

Responses

{
  "data": {
    "lastActivityAt": "string"
  }
}