所以，下面这一行不会被执行：

```Python
    uvicorn.run(app, host="0.0.0.0", port=8000)
```

/// info

更多信息请检查 <a href="https://docs.python.org/3/library/__main__.html" class="external-link" target="_blank">Python 官方文档</a>.

///

## 使用你的调试器运行代码

由于是从代码直接运行的 Uvicorn 服务器，所以你可以从调试器直接调用 Python 程序（你的 FastAPI 应用）。

---

例如，你可以在 Visual Studio Code 中：

* 进入到「调试」面板。
* 「添加配置...」。
* 选中「Python」

```Python hl_lines="21  26"
{!../../docs_src/metadata/tutorial004.py!}
```

/// info

✍ 🌅 🔃 🔖 [➡ 🛠️ 📳](path-operation-configuration.md#_3){.internal-link target=_blank}.

///

### ✅ 🩺

🔜, 🚥 👆 ✅ 🩺, 👫 🔜 🎦 🌐 🌖 🗃:

<img src="/img/tutorial/metadata/image02.png">

### ✔ 🔖

✔ 🔠 🔖 🗃 📖 🔬 ✔ 🎦 🩺 🎚.

But for now, let's check these important **conceptual ideas**. These concepts also apply to any other type of web API. 💡

## Security - HTTPS

In the [previous chapter about HTTPS](https.md){.internal-link target=_blank} we learned about how HTTPS provides encryption for your API.

We also saw that HTTPS is normally provided by a component **external** to your application server, a **TLS Termination Proxy**.

{!../../docs_src/handling_errors/tutorial002.py!}
```

## Install custom exception handlers

You can add custom exception handlers with <a href="https://www.starlette.io/exceptions/" class="external-link" target="_blank">the same exception utilities from Starlette</a>.

Let's say you have a custom exception `UnicornException` that you (or a library you use) might `raise`.

And you want to handle this exception globally with FastAPI.

Если вы используете более старую версию, вы столкнётесь с ошибками при попытке использовать `Annotated`.

Убедитесь, что вы [обновили версию FastAPI](../deployment/versions.md#fastapi_2){.internal-link target=_blank} как минимум до 0.95.1 перед тем, как использовать `Annotated`.

///

## Определите метаданные

Вы можете указать все те же параметры, что и для `Query`.

You can write <a href="https://en.wikipedia.org/wiki/Markdown" class="external-link" target="_blank">Markdown</a> in the docstring, it will be interpreted and displayed correctly (taking into account docstring indentation).

//// tab | Python 3.10+

```Python hl_lines="17-25"

{!../../docs_src/dependencies/tutorial006.py!}
```

## *path operations*のグループに対する依存関係

* `limit`, ein optionales `int`.

/// tip | "Tipp"

Sie können auch `Enum`s verwenden, auf die gleiche Weise wie mit [Pfad-Parametern](path-params.md#vordefinierte-parameterwerte){.internal-link target=_blank}.

Independent TechEmpower benchmarks show **FastAPI** applications running under Uvicorn as <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">one of the fastest Python frameworks available</a>, only below Starlette and Uvicorn themselves (used internally by FastAPI).

But when checking benchmarks and comparisons you should keep the following in mind.

## `python-jose` のインストール

PythonでJWTトークンの生成と検証を行うために、`python-jose`をインストールする必要があります：

<div class="termy">

```console
$ pip install python-jose[cryptography]

---> 100%
```

</div>

また、<a href="https://github.com/mpdavis/python-jose" class="external-link" target="_blank">Python-jose</a>だけではなく、暗号を扱うためのパッケージを追加で必要とします。