# Complete upload complete

`POST` `/api/v1/assets/complete`

Finalize an upload started with upload_asset. Reads the uploaded file
from S3, processes it, and creates a data source record. Returns an
asset:// URI.

## Request body

`application/json`

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| upload_token | string | yes | Token returned by upload_asset |

## Response

`201 Created` — `application/json`

| Field | Type | Description |
|-------|------|-------------|
| asset_id | string | An asset:// URI referencing the uploaded file |

## Errors

| Status | Description |
|--------|-------------|
| 400 | Bad Request |
| 403 | Forbidden |
| 422 | Unprocessable Entity |