> For the complete documentation index, see [llms.txt](https://developerdocs.instructure.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developerdocs.instructure.com/services/canvas/resources/assignment_extensions.md).

# Assignment Extensions

API for setting extensions on student assignment submissions. These cannot be set for discussion assignments or quizzes. For quizzes, use [Quiz Extensions](/services/canvas/resources/quiz_extensions.md) instead.

#### An AssignmentExtension object looks like: <a href="#assignmentextension" id="assignmentextension"></a>

```js
{
  // The ID of the Assignment the extension belongs to.
  "assignment_id": 2,
  // The ID of the Student that needs the assignment extension.
  "user_id": 3,
  // Number of times the student is allowed to re-submit the assignment
  "extra_attempts": 2
}
```

## [Set extensions for student assignment submissions](#method.assignment_extensions.create) <a href="#method.assignment_extensions.create" id="method.assignment_extensions.create"></a>

[AssignmentExtensionsController#create](https://github.com/instructure/canvas-lms/blob/master/app/controllers/assignment_extensions_controller.rb)

#### `POST /api/v1/courses/:course_id/assignments/:assignment_id/extensions`

**Scope:** `url:POST|/api/v1/courses/:course_id/assignments/:assignment_id/extensions`

\<b>Responses\</b>

* \<b>200 OK\</b> if the request was successful
* \<b>403 Forbidden\</b> if you are not allowed to extend assignments for this course
* \<b>400 Bad Request\</b> if any of the extensions are invalid

#### Request Parameters:

| Parameter                                 | Type               | Description                                                                                |
| ----------------------------------------- | ------------------ | ------------------------------------------------------------------------------------------ |
| `assignment_extensions[][user_id]`        | Required `integer` | The ID of the user we want to add assignment extensions for.                               |
| `assignment_extensions[][extra_attempts]` | Required `integer` | <p>Number of times the student is allowed to re-take the assignment over the<br>limit.</p> |

#### Example Request:

```bash
{
  "assignment_extensions": [{
    "user_id": 3,
    "extra_attempts": 2
  },{
    "user_id": 2,
    "extra_attempts": 2
  }]
}
```

#### Example Response:

```js
{
  "assignment_extensions": [AssignmentExtension]
}
```

***

This documentation is generated directly from the Canvas LMS source code, available [on Github](https://github.com/instructure/canvas-lms).


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