## Upsert Vectors

`client.vectorize.indexes.upsert(stringindexName, IndexUpsertParamsparams, RequestOptionsoptions?): IndexUpsertResponse | null`

**post** `/accounts/{account_id}/vectorize/v2/indexes/{index_name}/upsert`

Upserts vectors into the specified index, creating them if they do not exist and returns a mutation id corresponding to the vectors enqueued for upsertion.

### Parameters

- `indexName: string`

- `params: IndexUpsertParams`

  - `account_id: string`

    Path param: Identifier

  - `body: Uploadable`

    Body param: ndjson file containing vectors to upsert.

  - `unparsableBehavior?: "error" | "discard"`

    Query param: Behavior for ndjson parse failures.

    - `"error"`

    - `"discard"`

### Returns

- `IndexUpsertResponse`

  - `mutationId?: string`

    The unique identifier for the async mutation operation containing the changeset.

### Example

```node
import Cloudflare from 'cloudflare';

const client = new Cloudflare({
  apiToken: process.env['CLOUDFLARE_API_TOKEN'], // This is the default and can be omitted
});

const response = await client.vectorize.indexes.upsert('example-index', {
  account_id: '023e105f4ecef8ad9ca31a8372d0c353',
  body: fs.createReadStream('path/to/file'),
});

console.log(response.mutationId);
```

#### Response

```json
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "result": {
    "mutationId": "0000aaaa-11bb-22cc-33dd-444444eeeeee"
  },
  "success": true
}
```