## 添加更多校验

你还可以添加 `min_length` 参数：

```Python hl_lines="10"
{!../../docs_src/query_params_str_validations/tutorial003.py!}
```

## 添加正则表达式

你可以定义一个参数值必须匹配的<abbr title="正则表达式或正则是定义字符串搜索模式的字符序列。">正则表达式</abbr>：

```Python hl_lines="11"
{!../../docs_src/query_params_str_validations/tutorial004.py!}
```

这个指定的正则表达式通过以下规则检查接收到的参数值：

* `^`：以该符号之后的字符开头，符号之前没有字符。
* `fixedquery`: 值精确地等于 `fixedquery`。

Para este exemplo simples, seremos completamente inseguros e retornaremos o mesmo `username` do token.

/// tip | Dica

No próximo capítulo, você verá uma implementação realmente segura, com hash de senha e tokens <abbr title="JSON Web Tokens">JWT</abbr>.

Mas, por enquanto, vamos nos concentrar nos detalhes específicos de que precisamos.

///

//// tab | Python 3.10+

```Python hl_lines="87"

# Requestbody

Wenn Sie Daten von einem <abbr title="Client: Eine Software, die sich mit einem Server verbindet.">Client</abbr> (sagen wir, einem Browser) zu Ihrer API senden, dann senden Sie diese als einen **Requestbody** (Deutsch: Anfragekörper).

Ein **Request**body sind Daten, die vom Client zu Ihrer API gesendet werden. Ein **Response**body (Deutsch: Antwortkörper) sind Daten, die Ihre API zum Client sendet.

# Python Veri Tiplerine Giriş

Python isteğe bağlı olarak "tip belirteçlerini" destekler.

 **"Tip belirteçleri"** bir değişkenin <abbr title="örneğin: str, int, float, bool">tipinin</abbr> belirtilmesine olanak sağlayan özel bir sözdizimidir.

Değişkenlerin tiplerini belirterek editör ve araçlardan daha fazla destek alabilirsiniz.

By default, those files are served from a <abbr title="Content Delivery Network: A service, normally composed of several servers, that provides static files, like JavaScript and CSS. It's commonly used to serve those files from the server closer to the client, improving performance.">CDN</abbr>.

But it's possible to customize it, you can set a specific CDN, or serve the files yourself.

* Há uma extensão para o protocolo TLS (aquele que lida com a criptografia no nível TCP, antes do HTTP) chamado <a href="https://en.wikipedia.org/wiki/Server_Name_Indication" class="external-link" target="_blank"><abbr title="Server Name Indication">SNI</abbr></a>.
    * Esta extensão SNI permite que um único servidor (com um único endereço IP) tenha vários certificados HTTPS e atenda a vários domínios / aplicativos HTTPS.

    * **⏩**: 📶 ↕ 🎭, 🔛 🇷🇪 ⏮️ **✳** & **🚶** (👏 💃 & Pydantic).
    * **🏋️**: 👑 👨‍🎨 🐕‍🦺. <abbr title="also known as auto-complete, autocompletion, IntelliSense">🛠️</abbr> 🌐. 🌘 🕰 🛠️.
    * **⏩**: 🔧 ⏩ ⚙️ &amp; 💡. 🌘 🕰 👂 🩺.
    * **📏**: 📉 📟 ❎. 💗 ⚒ ⚪️➡️ 🔠 🔢 📄.
    * **🏋️**: 🤚 🏭-🔜 📟. ⏮️ 🏧 🎓 🧾.

/// tip | "提示"

状态码及适用场景的详情，请参阅 <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Status" class="external-link" target="_blank"><abbr title="Mozilla Developer Network">MDN 的 HTTP 状态码</abbr>文档</a>。

///

## 状态码名称快捷方式

再看下之前的例子：

```Python hl_lines="6"
{!../../docs_src/response_status_code/tutorial001.py!}
```

`201` 表示**已创建**的状态码。

但我们没有必要记住所有代码的含义。

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

## 🎏 🛠️

👆 💪 ⏪ ✍ 🌖 🔃 🎏 🛠️ [🏧 👩‍💻 🦮: 🏧 🛠️](../advanced/middleware.md){.internal-link target=_blank}.

## 검증 추가

매개변수 `min_length` 또한 추가할 수 있습니다:

```Python hl_lines="9"
{!../../docs_src/query_params_str_validations/tutorial003.py!}
```

## 정규식 추가

매개변수와 일치해야 하는 <abbr title="정규표현식(regular expression), regex 또는 regexp는 문자열 조회 패턴을 정의하는 문자들의 순열입니다">정규표현식</abbr>을 정의할 수 있습니다:

```Python hl_lines="10"
{!../../docs_src/query_params_str_validations/tutorial004.py!}
```

이 특정 정규표현식은 전달 받은 매개변수 값을 검사합니다: