<img src="/img/tutorial/behind-a-proxy/image02.png">

원하던 그대로입니다. ✔️

이는 FastAPI가 이 `root_path`를 사용해, OpenAPI에서 기본 `server`를 `root_path`가 제공한 URL로 생성하기 때문입니다.

## 추가 서버 { #additional-servers }

/// warning | 경고

이는 더 고급 사용 사례입니다. 건너뛰어도 괜찮습니다.

///

기본적으로 **FastAPI**는 OpenAPI 스키마에서 `root_path`의 URL로 `server`를 생성합니다.

하지만 예를 들어 동일한 docs UI가 스테이징과 프로덕션 환경 모두와 상호작용하도록 하려면, 다른 대안 `servers`를 제공할 수도 있습니다.

            public void storeInfo(List<CrawlingInfoParam> crawlingInfoParamList) {
                // Not called
            }
        }, CrawlingInfoService.class.getCanonicalName());

        // Should log warning and return without throwing exception
        crawlingInfoHelper.updateParams(sessionId, "Test", 1);
    }

    @Test
    public void test_updateParams_storeException() {

    assertThrows(NullPointerException.class, () -> ImmutableList.of("a", null, "b"));
  }

  public void testCreation_generic() {
    List<String> a = ImmutableList.of("a");
    // only verify that there is no compile warning
    ImmutableList<List<String>> unused = ImmutableList.of(a, a);
  }

  public void testCreation_arrayOfArray() {
    String[] array = new String[] {"a"};
    List<String[]> list = ImmutableList.<String[]>of(array);

### 回傳 `Response` { #return-a-response }

如[直接回傳 Response](response-directly.md)所示，你也可以在「路徑操作」中直接回傳以覆寫回應。

上面的相同範例，回傳 `HTMLResponse`，可以像這樣：

{* ../../docs_src/custom_response/tutorial003_py310.py hl[2,7,19] *}

/// warning

由你的「路徑操作函式」直接回傳的 `Response` 不會被記錄進 OpenAPI（例如不會記錄 `Content-Type`），也不會出現在自動產生的互動式文件中。

///

/// info

當然，實際的 `Content-Type` 標頭、狀態碼等，會來自你回傳的 `Response` 物件。

///

    assertThrows(NullPointerException.class, () -> ImmutableList.of("a", null, "b"));
  }

  public void testCreation_generic() {
    List<String> a = ImmutableList.of("a");
    // only verify that there is no compile warning
    ImmutableList<List<String>> unused = ImmutableList.of(a, a);
  }

  public void testCreation_arrayOfArray() {
    String[] array = new String[] {"a"};
    List<String[]> list = ImmutableList.<String[]>of(array);

每次你“使用” Facebook、Google、GitHub、Microsoft、X (Twitter) “登录”时，该应用就在使用带作用域的 OAuth2。

本节将介绍如何在你的 **FastAPI** 应用中，使用相同的带作用域的 OAuth2 管理认证与授权。

/// warning | 警告

本节内容相对进阶，如果你刚开始，可以先跳过。

你并不一定需要 OAuth2 作用域，你也可以用你自己的方式处理认证与授权。

但带作用域的 OAuth2 能很好地集成进你的 API（通过 OpenAPI）和 API 文档。

不过，无论如何，你都可以在代码中按需强制这些作用域，或任何其它安全/授权需求。

很多情况下，带作用域的 OAuth2 可能有点“大材小用”。

/**
 * Wraps an <code>HttpURLConnection</code> to provide NTLM authentication
 * services.
 *
 * Please read <a href="../../../httpclient.html">Using jCIFS NTLM Authentication for HTTP Connections</a>.
 *
 * Warning: Do not use this if there is a chance that you might have multiple connections (even plain
 * HttpURLConnections, for the complete JRE) to the same host with different or mixed anonymous/authenticated

  @Override
  @J2ktIncompatible
  @GwtIncompatible
    Object writeReplace() {
    return super.writeReplace();
  }

  // This class is never actually serialized directly, but we have to make the
  // warning go away (and suppressing would suppress for all nested classes too)
  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

 *
 * <p>If neither {@link #skipNulls()} nor {@link #useForNull(String)} is specified, the joining
 * methods will throw {@link NullPointerException} if any given element is null.
 *
 * <p><b>Warning: joiner instances are always immutable</b>; a configuration method such as {@code
 * useForNull} has no effect on the instance it is invoked on! You must store and use the new joiner

### Type-checking, generics and casting

You should try to write code that does not require suppressing any warnings from
the compiler, e.g. suppressing type-checking, raw generics, and so on. However,
this isn't always possible or practical. In such cases, you should use the
`@SuppressWarnings` annotations to silence the compiler warning, trying to keep
the scope of the suppression as small as possible. Where a piece of code