Remember I told you before that `Annotated` can be used to add metadata to your parameters in the [Python Types Intro](../python-types.md#type-hints-with-metadata-annotations)?

Now it's the time to use it with FastAPI. 🚀

We had this type annotation:

```Python
q: str | None = None
```

What we will do is wrap that with `Annotated`, so it becomes:

 *  Fix: Don't infinite loop when a received web socket message has self-terminating compressed
    data.

 *  Fix: Don't fail the call when the response code is ‘HTTP 102 Processing’ or ‘HTTP 103 Early
    Hints’.

 *  Fix: Honor interceptors' changes to connect and read timeouts.

 *  Fix: Recover gracefully when a cached response is corrupted on disk.

 *  Fix: Don't leak file handles when a cache disk write fails.

///

## `q` 매개변수의 타입에 `Annotated` 사용하기 { #use-annotated-in-the-type-for-the-q-parameter }

이전에 [Python 타입 소개](../python-types.md#type-hints-with-metadata-annotations)에서 `Annotated`를 사용해 매개변수에 메타데이터를 추가할 수 있다고 말씀드린 것을 기억하시나요?

이제 FastAPI에서 사용할 차례입니다. 🚀

다음과 같은 타입 어노테이션이 있었습니다:

```Python
q: str | None = None
```

Python, isteğe bağlı "type hints" (diğer adıyla "type annotations") desteğine sahiptir.

Bu **"type hints"** veya annotations, bir değişkenin <dfn title="örneğin: str, int, float, bool">tip</dfn>'ini bildirmeye yarayan özel bir sözdizimidir.

Değişkenleriniz için tip bildirerek, editörler ve araçlar size daha iyi destek sağlayabilir.

**Código fonte**: [https://github.com/fastapi/fastapi](https://github.com/fastapi/fastapi)

---

FastAPI é um framework web moderno e rápido (alta performance) para construção de APIs com Python, baseado nos type hints padrões do Python.

Os recursos chave são:

* **Rápido**: alta performance, equivalente a **NodeJS** e **Go** (graças ao Starlette e Pydantic). [Um dos frameworks Python mais rápidos disponíveis](#performance).

E também que o seu código será muito compatível com diversas outras ferramentas e bibliotecas Python. 🚀

///

## Type hints no **FastAPI** { #type-hints-in-fastapi }

O **FastAPI** aproveita esses type hints para fazer várias coisas.

Com o **FastAPI**, você declara parâmetros com type hints e obtém:

* **Suporte ao editor**.
* **Verificações de tipo**.

... e o **FastAPI** usa as mesmas declarações para:

## 見出し { #headings }

//// tab | テスト

### Web アプリを開発する - チュートリアル { #develop-a-webapp-a-tutorial }

こんにちは。

### 型ヒントとアノテーション { #type-hints-and-annotations }

またこんにちは。

### スーパークラスとサブクラス { #super-and-subclasses }

またこんにちは。

////

//// tab | 情報

見出しに関する唯一の厳格なルールは、リンクが壊れないように、LLM が中括弧内のハッシュ部分を変更しないことです。

 *  Upgrade: [Kotlin 1.8.21][kotlin_1_8_21].


## Version 4.11.0

_2023-04-22_

 *  Fix: Don't fail the call when the response code is ‘HTTP 102 Processing’ or
    ‘HTTP 103 Early Hints’.
 *  Fix: Read the response even if writing the request fails. This means you'll get a proper HTTP
    response even if the server rejects your request body.

**Source Code**: [https://github.com/fastapi/fastapi](https://github.com/fastapi/fastapi)

---

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints.

The key features are:

* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).

**Source Code**: [https://github.com/fastapi/fastapi](https://github.com/fastapi/fastapi)

---

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python based on standard Python type hints.

The key features are:

* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).