Dans ces cas, vous pouvez utiliser la technique Python "d'affection par décomposition" (appelé _unpacking_ en anglais) d'un `dict` avec `**dict_to_unpack` :

```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

{!../../../docs_src/additional_responses/tutorial003.py!}
```

所有这些都将被合并并包含在您的OpenAPI中，并在API文档中显示：

## 联合预定义响应和自定义响应

您可能希望有一些应用于许多路径操作的预定义响应，但是你想将不同的路径和自定义的相应组合在一块。
对于这些情况，你可以使用Python的技术，将 `dict` 与 `**dict_to_unpack` 解包：
```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

这里， new_dict 将包含来自 old_dict 的所有键值对加上新的键值对：

## 0.109.1

### Security fixes

* ⬆️ Upgrade minimum version of `python-multipart` to `>=0.0.7` to fix a vulnerability when using form data with a ReDos attack. You can also simply upgrade `python-multipart`.

Read more in the [advisory: Content-Type Header ReDoS](https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389).

### Features

    # Return some error
    ...
```

But by using the `secrets.compare_digest()` it will be secure against a type of attacks called "timing attacks".

### Timing Attacks

But what's a "timing attack"?

Let's imagine some attackers are trying to guess the username and password.

And they send a request with a username `johndoe` and a password `love123`.

In diesen Fällen können Sie die Python-Technik zum „Entpacken“ eines `dict`s mit `**dict_to_unpack` verwenden:

```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

For those cases, you can use the Python technique of "unpacking" a `dict` with `**dict_to_unpack`:

```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

Ayrıca ilginç ve çok rastlanmayan bir özelliği vardı: aynı framework'ü kullanarak hem API'lar hem de <abbr title="Command Line Tool (CLI): Komut satırı aracı">CLI</abbr>'lar oluşturmak mümkündü.

Senkron çalışan Python web framework'lerinin standardına (WSGI) dayandığından dolayı Websocket'leri ve diğer şeyleri işleyemiyor, ancak yine de yüksek performansa sahip.

!!! info "Bilgi"

...
```

#### OpenAPI Ne İşe Yarar?

OpenAPI şeması, FastAPI projesinde bulunan iki etkileşimli dokümantasyon sistemine güç veren şeydir.

OpenAPI'ya dayalı düzinelerce alternatif etkileşimli dokümantasyon aracı mevcuttur. **FastAPI** ile oluşturulmuş uygulamanıza bu alternatiflerden herhangi birini kolayca ekleyebilirsiniz.

        async with AsyncExitStack() as async_exit_stack:
            # TODO: remove this scope later, after a few releases
            # This scope fastapi_astack is no longer used by FastAPI, kept for
            # compatibility, just in case
            websocket.scope["fastapi_astack"] = async_exit_stack
            solved_result = await solve_dependencies(
                request=websocket,
                dependant=dependant,