},
      "contents_reading_analyzer_en" : {
        "type" : "custom",
        "tokenizer" : "standard",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "content_length_filter", "limit_token_count_filter", "english_keywords"]
      },
      "reading_analyzer_ko" : {

`secrets.compare_digest()` needs to take `bytes` or a `str` that only contains ASCII characters (the ones in English), this means it wouldn't work with characters like `á`, as in `Sebastián`.

To handle that, we first convert the `username` and `password` to `bytes` encoding them with UTF-8.

                log(buf);
            }
        });
    }

    public void record(final Object keyObj, final StatsAction action) {
        record(keyObj, action.name().toLowerCase(Locale.ENGLISH));
    }

    public void record(final Object keyObj, final String action) {
        getCacheKey(keyObj).ifPresent(key -> {
            try {
                final StatsObject data = statsCache.getIfPresent(key);

      },
      "contents_reading_analyzer_en" : {
        "type" : "custom",
        "tokenizer" : "standard",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "content_length_filter", "limit_token_count_filter", "english_keywords"]
      },
      "reading_analyzer_ko" : {

      },
      "contents_reading_analyzer_en" : {
        "type" : "custom",
        "tokenizer" : "standard",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "content_length_filter", "limit_token_count_filter", "english_keywords"]
      },
      "reading_analyzer_ko" : {

            validationMessagesLambda.message(messages);
            message = ComponentUtil.getMessageManager()
                    .toMessageList(LaRequestUtil.getOptionalRequest().map(HttpServletRequest::getLocale).orElse(Locale.ENGLISH), messages)
                    .stream().collect(Collectors.joining(" "));
            return this;
        }
    }

    public static class ApiPluginResponse extends ApiResponse {

次の章では、FastAPIアプリケーションをデプロイするための**具体的なレシピ**を紹介します。

しかし、今はこれらの重要な**コンセプトに基づくアイデア**を確認しましょう。これらのコンセプトは、他のどのタイプのWeb APIにも当てはまります。💡

## セキュリティ - HTTPS

<!-- NOTE: https.md written in Japanese does not exist, so it redirects to English one  -->
[前チャプターのHTTPSについて](https.md){.internal-link target=_blank}では、HTTPSがどのようにAPIを暗号化するのかについて学びました。

通常、アプリケーションサーバにとって**外部の**コンポーネントである**TLS Termination Proxy**によって提供されることが一般的です。このプロキシは通信の暗号化を担当します。

    }

    private boolean checkFileType(final String fileName, final String[] exts) {
        if (fileName == null) {
            return false;
        }
        final String lFileName = fileName.toLowerCase(Locale.ENGLISH);
        for (final String ext : exts) {
            if (lFileName.endsWith("." + ext)) {
                return true;
            }
        }
        return false;
    }

    @Execute

That way, you can edit the documentation/source files and see the changes live.

!!! tip
    Alternatively, you can perform the same steps that scripts does manually.

    Go into the language directory, for the main docs in English it's at `docs/en/`:

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

    Then run `mkdocs` in that directory:

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

        if (level == null || level.isEmpty()) {
            return DEFAULT_VALIDATION_LEVEL;
        }
        try {
            return ValidationReportLevel.valueOf(level.toUpperCase(Locale.ENGLISH));
        } catch (IllegalArgumentException e) {
            logger.warn(
                    "Invalid value specified for property {}: '{}'. Supported values are (case insensitive): {}",