# POST /luma/generations/{task_id}/extend

**Method**: `POST`
**Endpoint**: `/luma/generations/{task_id}/extend`

This section contains endpoint-specific behavior, parameters, or usage notes for this API.

## Request Parameters

### Path Parameters

```text
task_id
string
Required
```

### Header Parameters

```text
Authorization
string
Optional
Default Value:
Bearer {{YOUR_API_KEY}}
```

### Body Parameters application/json

```text
user_prompt
string
Required
expand_prompt
boolean
Optional
Whether to enable prompt optimization
image_url
string
Optional
Reference image, supports third-party image URLs and Base64
image_end_url
string
Optional
Key frame, supports third-party image URLs and Base64
notify_hook
string
Optional
Callback URL:
https://xxxxxxx
Example
{
"user_prompt"
:
"add cat"
,
"expand_prompt"
:
true
}
```

## Example Request

### Shell

```bash
curl --location --request POST '/luma/generations//extend' \
--header 'Authorization: Bearer {{YOUR_API_KEY}}' \
--header 'Content-Type: application/json' \
--data-raw '{
    "user_prompt": "add cat",
    "expand_prompt": true
}'
```

## Response

### 🟢 200 Success

**Content Type**: `application/json`

#### Response Schema

```text
object
```

#### Example

```json
{
    "id": "9d4b7516-77e5-481a-b015-48313946f33b",
    "prompt": "cat dance",
    "state": "pending",
    "created_at": "2024-07-01T07:35:13.498660Z",
    "video": null,
    "liked": null,
    "estimate_wait_seconds": null
}
```