## Метаданные для API

Вы можете задать следующие поля, которые используются в спецификации OpenAPI и в UI автоматической документации API:

| Параметр | Тип | Описание |
|------------|--|-------------|
| `title` | `str` | Заголовок API. |
| `description` | `str` | Краткое описание API. Может быть использован Markdown. |
| `version` | `string` | Версия API. Версия вашего собственного приложения, а не OpenAPI. К примеру `2.5.0`. |

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

* `500` 及以上的状态码用于表示服务器端错误。几乎永远不会直接使用这些状态码。应用代码或服务器出现问题时，会自动返回这些状态代码

/// 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。

Foi criado para gerar HTML no _backend_, não para criar APIs utilizando um _frontend_ moderno (como React, Vue.js e Angular) ou por outros sistemas (como dispositivos <abbr title="Internet das Coisas">IoT</abbr>) comunicando com ele.

### <a href="https://www.django-rest-framework.org/" class="external-link" target="_blank">Django REST Framework</a>

            # Ref: https://github.com/pydantic/pydantic/blob/d61792cc42c80b13b23e3ffa74bc37ec7c77f7d1/pydantic/schema.py#L207
            json_schema["title"] = (
                field.field_info.title or field.alias.title().replace("_", " ")
            )
        return json_schema

    def get_compat_model_name_map(fields: List[ModelField]) -> ModelNameMap:
        return {}

cff-version: 1.2.0
message: "If you use TensorFlow in your research, please cite it using these metadata. Software is available from tensorflow.org."
title: TensorFlow, Large-scale machine learning on heterogeneous systems

 *
 * <p>For testing against the returned instances from a static factory class, such as
 *
 * <pre>
 * interface Book {...}
 * public class Books {
 *   public static Book hardcover(String title) {...}
 *   public static Book paperback(String title) {...}
 * }
 * </pre>
 *
 * <p>please use {@link ClassSanityTester#forAllPublicStaticMethods}.
 *

  different than this Agreement, provided that such license:
     i) effectively disclaims on behalf of all other Contributors all
     warranties and conditions, express and implied, including
     warranties or conditions of title and non-infringement, and
     implied warranties or conditions of merchantability and fitness
     for a particular purpose;

     ii) effectively excludes on behalf of all other Contributors all

```Python hl_lines="14"
{!../../docs_src/handling_errors/tutorial005.py!}
```

Now try sending an invalid item like:

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

You will receive a response telling you that the data is invalid containing the received body:

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [

```Python
{!../../docs_src/python_types/tutorial001.py!}
```

运行这段程序将输出：

```
John Doe
```

这个函数做了下面这些事情：

* 接收 `first_name` 和 `last_name` 参数。
* 通过 `title()` 将每个参数的第一个字母转换为大写形式。
* 中间用一个空格来<abbr title="将它们按顺序放置组合成一个整体。">拼接</abbr>它们。

```Python hl_lines="2"
{!../../docs_src/python_types/tutorial001.py!}
```

### 修改示例

这是一个非常简单的程序。

现在假设你将从头开始编写这段程序。

在某一时刻，你开始定义函数，并且准备好了参数...。