* 許多額外功能（感謝 Starlette），例如：
    * **WebSockets**
    * 基於 HTTPX 與 `pytest` 的極其簡單的測試
    * **CORS**
    * **Cookie Sessions**
    * ...以及更多。

### 部署你的應用（可選） { #deploy-your-app-optional }

你也可以選擇將 FastAPI 應用部署到 [FastAPI Cloud](https://fastapicloud.com)，如果你還沒加入，去登記等候名單吧。🚀

如果你已經有 **FastAPI Cloud** 帳號（我們已從等候名單邀請你 😉），你可以用一個指令部署你的應用。

<div class="termy">

```console
$ fastapi deploy

 * Updating the table can change the contents of those collections, and updating the collections
 * will change the table.
 *
 * <p>All methods that modify the table are optional, and the views returned by the table may or may
 * not be modifiable. When modification isn't supported, those methods will throw an {@link
 * UnsupportedOperationException}.
 *
 * <h3>Implementations</h3>
 *
 * <ul>

쿼리 매개변수를 선언할 때와 같이, 모델 어트리뷰트가 기본 값을 가지고 있어도 이는 필수가 아닙니다. 그외에는 필수입니다. 그저 `None`을 사용하여 선택적으로 만들 수 있습니다.

예를 들면, 위의 이 모델은 JSON "`object`" (혹은 파이썬 `dict`)을 다음과 같이 선언합니다:

```JSON
{
    "name": "Foo",
    "description": "An optional description",
    "price": 45.2,
    "tax": 3.5
}
```

...`description`과 `tax`는 (기본 값이 `None`으로 되어 있어) 선택적이기 때문에, 이 JSON "`object`"는 다음과 같은 상황에서도 유효합니다:

```JSON
{
    "name": "Foo",
    "price": 45.2

import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.query.QueryFieldConfig;
import org.codelibs.fess.thumbnail.ThumbnailManager;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.login.LoginManager;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.next.HtmlNext;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.app.web.base.login.FessCredential;
import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.login.credential.LoginCredential;
import org.lastaflute.web.util.LaRequestUtil;

import jakarta.annotation.PostConstruct;

/**
 * The helper for user activities.

Wenn es überzeugende Anwendungsfälle für ein frühes Schließen bei Abhängigkeiten mit `yield` gibt, würde ich erwägen, eine neue Möglichkeit hinzuzufügen, um ein frühes Schließen optional zu aktivieren.

### Abhängigkeiten mit `yield` und `except`, Technische Details { #dependencies-with-yield-and-except-technical-details }

No more typing the wrong key names, coming back and forth between docs, or scrolling up and down to find if you finally used `username` or `user_name`.

### Short { #short }

It has sensible **defaults** for everything, with optional configurations everywhere. All the parameters can be fine-tuned to do what you need and to define the API you need.

But by default, it all **"just works"**.

### Validation { #validation }

import org.codelibs.fess.exception.UserRoleLoginException;
import org.codelibs.fess.helper.ActivityHelper;
import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.dbflute.optional.OptionalThing;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;

```console
$ cd docs/en/
```

Then run `mkdocs` in that directory:

```console
$ mkdocs serve --dev-addr 127.0.0.1:8008
```

///

#### Typer CLI (optional)

The instructions here show you how to use the script at `./scripts/docs.py` with the `python` program directly.

# Python Types Intro { #python-types-intro }

Python has support for optional "type hints" (also called "type annotations").

These **"type hints"** or annotations are a special syntax that allow declaring the <dfn title="for example: str, int, float, bool">type</dfn> of a variable.

By declaring types for your variables, editors and tools can give you better support.