href="https://github.com/florimondmanca/msgpack-asgi" class="external-link" target="_blank">MessagePack</a>

To see other available middlewares check <a href="https://www.starlette.io/middleware/" class="external-link" target="_blank">Starlette's Middleware docs</a> and the <a href="https://github.com/florimondmanca/awesome-asgi" class="external-link" target="_blank">ASGI Awesome List</a>....

你将看到如下的 JSON 响应：

```JSON
{"message": "Hello World"}
```

### 交互式 API 文档

跳转到 <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>。

你将会看到自动生成的交互式 API 文档（由 <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a> 提供）：

        .add(new SlackJsonAdapters())
        .build();
    this.clientId = clientId;
    this.clientSecret = clientSecret;
    this.port = port;
  }

  /** See https://api.slack.com/docs/oauth. */
  public HttpUrl authorizeUrl(String scopes, HttpUrl redirectUrl, ByteString state, String team) {
    HttpUrl.Builder builder = baseUrl.newBuilder("/oauth/authorize")
        .addQueryParameter("client_id", clientId)

  - url: https://liblab.com?utm_source=fastapi
    title: liblab - Generate SDKs from FastAPI
    img: https://fastapi.tiangolo.com/img/sponsors/liblab.png
  - url: https://docs.render.com/deploy-fastapi?utm_source=deploydoc&utm_medium=referral&utm_campaign=fastapi
    title: Deploy & scale any full-stack web app on Render. Focus on building apps, not infra.

Perceba que isso significa que "`one_person` é uma **instância** da classe `Person`".

Isso não significa que "`one_person` é a **classe** chamada `Person`".

## Modelos Pydantic

O <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> é uma biblioteca Python para executar a validação de dados.

Você declara a "forma" dos dados como classes com atributos.

E cada atributo tem um tipo.

/**
 * Static methods to obtain {@link HashFunction} instances, and other static hashing-related
 * utilities.
 *
 * <p>A comparison of the various hash functions can be found <a
 * href="https://docs.google.com/spreadsheets/d/1_q2EVcxA2HjcrlVMbaqXwMj31h9M5-Bqj_m8vITOwwk/">here</a>.
 *
 * @author Kevin Bourrillion
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 * @since 11.0
 */

{*../../docs_src/python_types/tutorial010.py hl[6] *}

Et vous aurez accès, encore une fois, au support complet offert par l'éditeur :

<img src="/img/python-types/image06.png">

## Les modèles Pydantic

<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> est une bibliothèque Python pour effectuer de la validation de données.

Vous déclarez la forme de la donnée avec des classes et des attributs.

```

/// info

FastAPI 通过 Pydantic 模型的 `.dict()` 配合 <a href="https://docs.pydantic.dev/latest/concepts/serialization/#modeldict" class="external-link" target="_blank">该方法的 `exclude_unset` 参数</a> 来实现此功能。

///

/// info

你还可以使用：

* `response_model_exclude_defaults=True`
* `response_model_exclude_none=True`

	RequestID string `xml:"RequestId"`
}

// STSErrorCode type of error status.
type STSErrorCode int

//go:generate stringer -type=STSErrorCode -trimprefix=Err $GOFILE

// Error codes, non exhaustive list - http://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRoleWithSAML.html
const (
	ErrSTSNone STSErrorCode = iota
	ErrSTSAccessDenied
	ErrSTSMissingParameter
	ErrSTSInvalidParameterValue
	ErrSTSWebIdentityExpiredToken

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

🚥 👆 💚 ❎ 🗄 🔗 🍕 👆 💪 ⚒ `openapi_url=None`, 👈 🔜 ❎ 🧾 👩‍💻 🔢 👈 ⚙️ ⚫️.

## 🩺 📛

👆 💪 🔗 2️⃣ 🧾 👩‍💻 🔢 🔌:

* **🦁 🎚**: 🍦 `/docs`.
    * 👆 💪 ⚒ 🚮 📛 ⏮️ 🔢 `docs_url`.
    * 👆 💪 ❎ ⚫️ ⚒ `docs_url=None`.
* **📄**: 🍦 `/redoc`.
    * 👆 💪 ⚒ 🚮 📛 ⏮️ 🔢 `redoc_url`.
    * 👆 💪 ❎ ⚫️ ⚒ `redoc_url=None`.