The <abbr title="specification">spec</abbr> requires the fields to be exactly named `username` and `password`, and to be sent as form fields, not JSON.

With `Form` you can declare the same configurations as with `Body` (and `Query`, `Path`, `Cookie`), including validation, examples, an alias (e.g. `user-name` instead of `username`), etc.

/// info

`Form` is a class that inherits directly from `Body`.

///

/// tip

      uses: actions/checkout@v4
      # Checkout must run before the caching key is computed using the `hashFiles` method

    - name: Cache Gradle Modules
      uses: actions/cache@v4
      with:
        path: |
          ~/.gradle/caches/modules-2/
          ~/.gradle/caches/build-cache-1/
          ~/.gradle/caches/signatures/
          ~/.gradle/caches/keyrings/

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="logHelper"
		class="org.codelibs.fess.crawler.helper.impl.LogHelperImpl">
	</component>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="mimeTypeHelper"
		class="org.codelibs.fess.crawler.helper.impl.MimeTypeHelperImpl" instance="singleton">
	</component>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="sitemapsHelper" class="org.codelibs.fess.crawler.helper.SitemapsHelper"
		instance="singleton">
	</component>

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

### コード内での`HTTPException`の発生

`HTTPException`は通常のPythonの例外であり、APIに関連するデータを追加したものです。

Pythonの例外なので、`return`ではなく、`raise`です。

これはまた、*path operation関数*の内部で呼び出しているユーティリティ関数の内部から`HTTPException`を発生させた場合、*path operation関数*の残りのコードは実行されず、そのリクエストを直ちに終了させ、`HTTPException`からのHTTPエラーをクライアントに送信することを意味します。

値を返す`return`よりも例外を発生させることの利点は、「依存関係とセキュリティ」のセクションでより明確になります。

	binversion "istio.io/istio/operator/version"
)

var NeverMatch = &metav1.LabelSelector{
	MatchLabels: map[string]string{
		"istio.io/deactivated": "never-match",
	},
}

var ManifestsFlagHelpStr = `Specify a path to a directory of charts and profiles
(e.g. ~/Downloads/istio-` + binversion.OperatorVersionString + `/manifests).`

// CommandParseError distinguishes an error parsing istioctl CLI arguments from an error processing

Details about the `async def` syntax for *path operation functions* and some background about asynchronous code, concurrency, and parallelism.

## In a hurry?

<abbr title="too long; didn't read"><strong>TL;DR:</strong></abbr>

If you are using third party libraries that tell you to call them with `await`, like:

```Python
results = await some_library()
```

Then, declare your *path operation functions* with `async def` like:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<!-- Converts child links to normalize it. -->
	<component name="urlConvertHelper" class="org.codelibs.fess.crawler.helper.UrlConvertHelper">
	</component>

					Scheme: httpScheme,
					Path:   SlashSeparator,
				},
				Header: http.Header{
					"Authorization": []string{"Bearer 12313123"},
				},
			},
			authT: authTypeJWT,
		},
		// Test case - 3
		// Empty authorization header.
		{
			req: &http.Request{
				URL: &url.URL{
					Host:   "127.0.0.1:9000",
					Scheme: httpScheme,
					Path:   SlashSeparator,
				},
				Header: http.Header{