## Complete a file upload and trigger processing

**post** `/api/v1/datasets/{dataset_id}/upload/complete`

File uploads only. Call after uploading bytes to the presigned URL from POST /datasets. Verifies the file exists in S3, then triggers the preprocessing pipeline.

### Path Parameters

- `dataset_id: string`

### Body Parameters

- `file_size_bytes: number`

  Size of the uploaded file in bytes (for verification)

- `sha256: optional string`

  SHA-256 hex digest of the uploaded file (for integrity verification)

### Returns

- `dataset_id: string`

  ID of the dataset

- `status: string`

  Current status of the dataset after completing upload

### Example

```http
curl https://api.adaptionlabs.ai/api/v1/datasets/$DATASET_ID/upload/complete \
    -H 'Content-Type: application/json' \
    -H "Authorization: Bearer $ADAPTION_API_KEY" \
    -d '{
          "file_size_bytes": 1048576,
          "sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
        }'
```

#### Response

```json
{
  "dataset_id": "550e8400-e29b-41d4-a716-446655440000",
  "status": "processing"
}
```