{* ../../docs_src/body_updates/tutorial001_py310.py hl[28:33] *}

`PUT` is used to receive data that should replace the existing data.

### Warning about replacing { #warning-about-replacing }

That means that if you want to update the item `bar` using `PUT` with a body containing:

```Python
{
    "name": "Barz",
    "price": 3,
    "description": None,
}
```

But first, let's check some small concepts.

## In a hurry? { #in-a-hurry }

If you don't care about any of these terms and you just need to add security with authentication based on username and password *right now*, skip to the next chapters.

## OAuth2 { #oauth2 }

But now that FastAPI is the backend framework with the most GitHub stars across languages, and the most starred and used framework in Python, it no longer makes sense to attempt to list all articles written about it.

///

## GitHub Repositories

Most starred <a href="https://github.com/topics/fastapi" class="external-link" target="_blank">GitHub repositories with the topic `fastapi`</a>:

{% for repo in topic_repos %}

import org.apache.maven.model.Model;

/**
 * Describes a problem that was encountered during model building. A problem can either be an exception that was thrown
 * or a simple string message. In addition, a problem carries a hint about its source, e.g. the POM file that exhibits
 * the problem.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")

* PR (meaning GitHub pull request): пулл-реквест (add `запрос на изменение` if clarification is needed)
* run (meaning run the code): запустить (or `прогнать` if it's about testing the program)
* to reach users: донести до пользователей (or `привлечь внимание пользователей` in the promotion context)
* body (meaning HTTP request body): тело запроса
* body (meaning HTTP response body): тело ответа

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[9] *}

In this case, **FastAPI** won't ever touch or care about `__init__`, we will use it directly in our code.

## Create an instance { #create-an-instance }

We could create an instance of this class with:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[18] *}

When you need `lifespan` to run in your tests, you can use the `TestClient` with a `with` statement:

{* ../../docs_src/app_testing/tutorial004_py39.py hl[9:15,18,27:28,30:32,41:43] *}


You can read more details about the ["Running lifespan in tests in the official Starlette documentation site."](https://www.starlette.dev/lifespan/#running-lifespan-in-tests)

For the deprecated `startup` and `shutdown` events, you can use the `TestClient` as follows:

import jakarta.annotation.Resource;

/**
 * API action for admin job log management.
 * Provides RESTful API endpoints for viewing and managing job execution logs in the Fess search engine.
 * Job logs contain information about crawling jobs, indexing tasks, and system maintenance operations.
 *
 */
public class ApiAdminJoblogAction extends FessApiAdminAction {

# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
# This script dumps some information about the environment. It's most useful
# for verifying changes to the TFCI scripts system, and most users won't need
# to interact with it at all.
source "${BASH_SOURCE%/*}/utilities/setup.sh"

echo "==TFCI== env outside of tfrun:"

# Security Policy

## Supported Versions

Information about supported Kubernetes versions can be found on the
[Kubernetes version and version skew support policy] page on the Kubernetes website.

## Reporting a Vulnerability

Instructions for reporting a vulnerability can be found on the
[Kubernetes Security and Disclosure Information] page.