トップレベルのアプリケーション `app` に、サブアプリケーション `subapi` をマウントします。

この例では、パス `/subapi` にマウントされます:

{* ../../docs_src/sub_applications/tutorial001_py310.py hl[11, 19] *}

### 自動 API ドキュメントの確認 { #check-the-automatic-api-docs }

では、`fastapi` コマンドを実行します:

<div class="termy">

```console
$ fastapi dev

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

/// tip

To know more about each status code and which code is for what, check the [<abbr title="Mozilla Developer Network">MDN</abbr> documentation about HTTP status codes](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status).

///

## Shortcut to remember the names { #shortcut-to-remember-the-names }

  /*
   * We are comparing Multimaps of the same type, so as long as they have value collections that
   * implement equals() (as with ListMultimap or SetMultimap, as opposed to a QueueMultimap or
   * something), our equality check is value-based.
   */
  @SuppressWarnings("UndefinedEquals")
  public void testRetainAllPropagatesToMultimap() {
    multimap().entries().retainAll(singleton(mapEntry(k0(), v0())));

                firstItems);
    }

    /**
     * Checks if the first word matches.
     * @param singleWordQuery True if it is a single word query.
     * @param hiraganaQuery True if it is a hiragana query.
     * @param text The text to check.
     * @return True if the first word matches, false otherwise.
     */

                return provider;
            }
        }

        log.warn("No RDMA providers available");
        return null;
    }

    /**
     * Check if any RDMA provider is available
     *
     * @return true if at least one RDMA provider is available
     */
    public static boolean isRdmaAvailable() {
        return selectBestProvider() != null;
    }

    private boolean initialized = false;

    @Override
    public boolean isAvailable() {
        try {
            // Check if DiSNI is available on the classpath
            Class.forName("com.ibm.disni.RdmaActiveEndpointGroup");

            // Additional checks could include:
            // - Verifying RDMA devices are available
            // - Testing basic RDMA operations

        "JavaUtilDate", // We are fine with using Date
        "JavaxInjectOnAbstractMethod", // We use abstract injection as a pattern
        "MissingSummary", // We have another mechanism to check Javadocs on public API
        "StringSplitter", // We are fine with using String.split() as is
    )

    nullawayEnabled.convention(false)
}

nullaway {

    // The WHATWG Host parsing rules accepts some character codes which are invalid by
    // definition for OkHttp's host header checks (and the WHATWG Host syntax definition). Here
    // we rule out characters that would cause problems in host headers.
    if (c <= '\u001f' || c >= '\u007f') {
      return true
    }
    // Check for the characters mentioned in the WHATWG Host parsing spec:

			defer wg.Done()
			// remember the pool index, we may sort the slice original index might be lost.
			pinfo := PoolObjInfo{
				Index: i,
			}
			// do not remove this check as it can lead to inconsistencies
			// for all callers of bucket replication.
			if !opts.MetadataChg {
				opts.VersionID = ""
			}
			pinfo.ObjInfo, pinfo.Err = pool.GetObjectInfo(ctx, bucket, object, opts)

These attacks exploit the fact that browsers allow scripts to send requests without doing any CORS preflight check when they:

* don't have a `Content-Type` header (e.g. using `fetch()` with a `Blob` body)
* and don't send any authentication credentials.

This type of attack is mainly relevant when: