curl --request POST \
  --url https://api.databar.ai/v1/table/{table_uuid}/rows/upsert \
  --header 'Content-Type: application/json' \
  --header 'x-apikey: <x-apikey>' \
  --data '
{
  "return_rows": false,
  "rows": [
    {
      "fields": {
        "company_name": "Acme",
        "first_name": "Ivan"
      },
      "key": {
        "email": "ivan@example.com"
      }
    },
    {
      "fields": {
        "first_name": "New Person",
        "title": "Engineer"
      },
      "key": {
        "email": "new@example.com"
      }
    }
  ]
}
'

{
  "results": [
    {
      "action": "updated",
      "id": "91f0e833-5dfc-4f63-be96-e3a28925190f"
    },
    {
      "action": "created",
      "id": "a1b2c3d4-0000-0000-0000-000000000000",
      "index": 1
    }
  ]
}