curl --request POST \
  --url https://api.olostep.com/v1/batches \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "items": [
    {
      "custom_id": "product-123",
      "url": "https://example.com/product/123",
      "metadata": {
        "source": "catalog_sync",
        "priority": "high"
      }
    },
    {
      "custom_id": "product-456",
      "url": "https://example.com/product/456"
    }
  ],
  "country": "US",
  "metadata": {
    "batch_name": "Q1 Product Sync",
    "initiated_by": "automation"
  }
}
'

{
  "id": "batch_abc123def456",
  "object": "batch",
  "status": "in_progress",
  "created": 1704067200,
  "total_urls": 2,
  "completed_urls": 0,
  "country": "US",
  "metadata": {
    "batch_name": "Q1 Product Sync",
    "initiated_by": "automation"
  }
}