> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/Celaya55/app-cr/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Task

> Update an existing task

<Note>
  This endpoint requires implementation in the backend. Documentation reflects the expected API design based on the Task model schema.
</Note>

## Authentication

This endpoint requires a valid JWT token in the Authorization header.

```
Authorization: Bearer YOUR_JWT_TOKEN
```

## Path Parameters

<ParamField path="id" type="integer" required>
  The unique identifier of the task to update
</ParamField>

## Request Body

All fields are optional. Only provide the fields you want to update.

<ParamField body="title" type="string">
  The new title of the task
</ParamField>

<ParamField body="description" type="string">
  The new description of the task
</ParamField>

<ParamField body="completed" type="boolean">
  Update the completion status of the task
</ParamField>

## Response

<ResponseField name="id" type="integer">
  The unique identifier for the task
</ResponseField>

<ResponseField name="title" type="string">
  The updated title of the task
</ResponseField>

<ResponseField name="description" type="string">
  The updated description of the task
</ResponseField>

<ResponseField name="completed" type="boolean">
  The updated completion status
</ResponseField>

<ResponseField name="userId" type="integer">
  The ID of the user who owns this task
</ResponseField>

<RequestExample>
  ```bash cURL - Update Title theme={null}
  curl -X PUT http://localhost:3000/tasks/1 \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer YOUR_JWT_TOKEN" \
    -d '{
      "title": "Updated API documentation"
    }'
  ```

  ```bash cURL - Mark as Completed theme={null}
  curl -X PUT http://localhost:3000/tasks/1 \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer YOUR_JWT_TOKEN" \
    -d '{
      "completed": true
    }'
  ```

  ```bash cURL - Update Multiple Fields theme={null}
  curl -X PUT http://localhost:3000/tasks/1 \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer YOUR_JWT_TOKEN" \
    -d '{
      "title": "Finalized API documentation",
      "description": "All endpoints documented and reviewed",
      "completed": true
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json 200 OK theme={null}
  {
    "id": 1,
    "title": "Finalized API documentation",
    "description": "All endpoints documented and reviewed",
    "completed": true,
    "userId": 5
  }
  ```

  ```json 400 Bad Request theme={null}
  {
    "error": "No fields provided to update"
  }
  ```

  ```json 401 Unauthorized theme={null}
  {
    "error": "Invalid or missing authentication token"
  }
  ```

  ```json 403 Forbidden theme={null}
  {
    "error": "You do not have permission to update this task"
  }
  ```

  ```json 404 Not Found theme={null}
  {
    "error": "Task not found"
  }
  ```

  ```json 500 Internal Server Error theme={null}
  {
    "error": "Error updating task"
  }
  ```
</ResponseExample>