{!> ../../../docs_src/settings/app02_an/main.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="5  11-12"
    {!> ../../../docs_src/settings/app02/main.py!}
    ```

!!! tip
    We'll discuss the `@lru_cache` in a bit.

    For now you can assume `get_settings()` is a normal function.

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="1"
    {!> ../../../docs_src/cookie_params/tutorial001_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="3"

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip "Подсказка"
        Настоятельно рекомендуем использовать `Annotated` версию насколько это возможно.

    ```Python hl_lines="6-7"
    {!> ../../../docs_src/dependencies/tutorial001_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip "Подсказка"

This part is pretty normal, most of the code is probably already familiar to you:

```Python hl_lines="9-13  36-53"
{!../../../docs_src/openapi_callbacks/tutorial001.py!}
```

!!! tip
    The `callback_url` query parameter uses a Pydantic <a href="https://docs.pydantic.dev/latest/concepts/types/#urls" class="external-link" target="_blank">URL</a> type.

    ```

=== "Python 3.10+ без Annotated"

    !!! tip "Подсказка"
        По возможности используйте версию с `Annotated`.

    ```Python
    {!> ../../../docs_src/app_testing/app_b_py310/main.py!}
    ```

=== "Python 3.8+  без Annotated"

    !!! tip "Подсказка"
        По возможности используйте версию с `Annotated`.

    ```Python

    {!> ../../../docs_src/dependencies/tutorial001_an.py!}
    ```

=== "Python 3.10+ Annotated가 없는 경우"

    !!! tip "팁"
        가능하다면 `Annotated`가 달린 버전을 권장합니다.

    ```Python hl_lines="6-7"
    {!> ../../../docs_src/dependencies/tutorial001_py310.py!}
    ```

=== "Python 3.8+ Annotated가 없는 경우"

    !!! tip "팁"
        가능하다면 `Annotated`가 달린 버전을 권장합니다.

    ```Python hl_lines="8-11"

{!../../../docs_src/app_testing/tutorial001.py!}
```

!!! tip "提示"
    注意测试函数是普通的 `def`，不是 `async def`。

    还有client的调用也是普通的调用，不是用 `await`。

    这让你可以直接使用 `pytest` 而不会遇到麻烦。

!!! note "技术细节"
    你也可以用 `from starlette.testclient import TestClient`。

    **FastAPI** 提供了和 `starlette.testclient` 一样的 `fastapi.testclient`，只是为了方便开发者。但它直接来自Starlette。

!!! tip "提示"

    ```

=== "Python 3.10+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="66-67  79"
    {!> ../../../docs_src/websockets/tutorial002_py310.py!}
    ```

=== "Python 3.8+ non-Annotated"

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="68-69  81"

!!! tip "Подсказка"
    "ПАТЧ" - это последнее число. Например, в `0.2.3`, ПАТЧ-версия - это `3`.

Итак, вы можете закрепить версию следующим образом:

```txt
fastapi>=0.45.0,<0.46.0
```

Обратно несовместимые изменения и новые функции добавляются в "МИНОРНЫЕ" версии.

!!! tip "Подсказка"

    "paths": {
            // More stuff here
    }
}
```

!!! tip "提示"

    注意，自动生成服务器时，`url` 的值 `/api/v1` 提取自 `roog_path`。

<a href="http://127.0.0.1:9999/api/v1/docs" class="external-link" target="_blank">http://127.0.0.1:9999/api/v1/docs 的 API 文档所示如下：</a>

<img src="/img/tutorial/behind-a-proxy/image03.png">

!!! tip "提示"

    API 文档与所选的服务器进行交互。

### 从 `root_path` 禁用自动服务器