Upsert many data rows

POST/api/v1/experimental/data-definitions/{definitionHandle}/data/upsert-many

Upserts data rows in bulk. Rows without id are created.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

items*array<>

an array of at least 1 item(s)

Items1 <= items

Response Body

`application/json`

curl -X POST "https://loading/api/v1/experimental/data-definitions/{definitionHandle}/data/upsert-many" \  -H "Content-Type: application/json" \  -d '{    "items": [      {        "id": "e26e928f-0abf-47c1-bf88-df17f3bc0f4a",        "data": {          "firstName": "Diego",          "lastName": "Pérez",          "email": "diego.perez@northwind.example",          "loyaltyTier": "gold",          "active": true        }      },      {        "data": {          "firstName": "Lucas",          "lastName": "Meyer",          "email": "lucas.meyer@northwind.example",          "loyaltyTier": "silver",          "active": true        }      }    ]  }'

[
  {
    "id": "e26e928f-0abf-47c1-bf88-df17f3bc0f4a",
    "definitionHandle": "customer",
    "data": {
      "firstName": "Diego",
      "lastName": "Pérez",
      "email": "diego.perez@northwind.example",
      "loyaltyTier": "gold",
      "active": true
    },
    "createdAt": "2026-03-05T16:10:00.000Z",
    "updatedAt": "2026-03-05T16:10:00.000Z",
    "deletedAt": null
  }
]

{
  "issues": [
    {
      "_tag": "Pointer",
      "path": [
        "string"
      ],
      "message": "string"
    }
  ],
  "message": "string",
  "_tag": "HttpApiDecodeError"
}

{
  "code": "authentication_required",
  "message": "Authentication required. Send Authorization: Bearer <api-key>, x-api-key, or a signed-in session."
}

{
  "code": "insufficient_permissions",
  "message": "This API key does not have data.write permission.",
  "details": {
    "requiredPermission": "data.write"
  }
}

{
  "code": "not_found",
  "message": "The requested resource was not found."
}

{
  "code": "internal_error",
  "message": "An unexpected server error occurred."
}

Upsert many data rows

Request Body

Response Body

200application/json

400application/json

401application/json

403application/json

404application/json

500application/json

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`