> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dreep.cloud/llms.txt
> Use this file to discover all available pages before exploring further.

# Confirm Upload

> Finalize a presigned upload with dreep.confirmUpload() once its bytes are in storage.

Verifies the object exists, reads its metadata, applies any transform, and flips the asset
to `ready`. Until this is called the asset stays `pending` and is excluded from media
listings.

```ts theme={null}
const asset = await dreep.confirmUpload({ id: upload.id });
```

## Parameters

| Parameter   | Type                                                      | Description                                                                                      |
| :---------- | :-------------------------------------------------------- | :----------------------------------------------------------------------------------------------- |
| `id`        | `string`                                                  | **Required.** The `id` returned by [`presignUpload()`](/node-sdk/upload/create-presigned-upload) |
| `transform` | [`TransformParams`](/node-sdk/media/build-url#parameters) | Applied before the asset goes `ready`                                                            |
| `presetKey` | `string`                                                  | A saved preset, applied instead of `transform`                                                   |
| `signal`    | `AbortSignal`                                             | Cancels the request                                                                              |

## Returns

The stored [asset](/node-sdk/upload/upload-media#returns), identical in shape to what
`upload()` resolves to.

## Transforming on confirm

```ts theme={null}
const asset = await dreep.confirmUpload({
  id: upload.id,
  transform: { width: 1200, format: "webp" },
});
```

## Errors

| Error                | Cause                                               |
| :------------------- | :-------------------------------------------------- |
| `DreepConflictError` | The bytes haven't finished uploading to storage yet |
| `DreepNotFoundError` | No presigned upload with that id                    |

A `DreepConflictError` means the `PUT` hasn't landed — retry the confirm, not the upload.