{* ../../docs_src/metadata/tutorial004.py hl[21,26] *}

/// info | Інформація

Детальніше про теги читайте в розділі [Конфігурація шляхів операцій](path-operation-configuration.md#tags){.internal-link target=_blank}.

///

### Перевірка документації

Якщо Ви зараз перевірите документацію, вона покаже всі додаткові метадані:

<img src="/img/tutorial/metadata/image02.png">

* Pydanticの全ての有効な型はこちらで確認できます: <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydantic data types</a>。
## 例

ここでは、上記の型のいくつかを使用したパラメータを持つ*path operation*の例を示します。

{* ../../docs_src/extra_data_types/tutorial001.py hl[1,2,12:16] *}

関数内のパラメータは自然なデータ型を持っていることに注意してください。そして、以下のように通常の日付操作を行うことができます:

   *
   * <p>Currently, this method is invoked while holding a lock. If an implementation of this method
   * blocks, it can prevent this service from changing state. If you need to performing a blocking
   * operation in order to trigger shutdown, consider instead registering a listener and
   * implementing {@code stopping}. Note, however, that {@code stopping} does not run at exactly the
   * same times as {@code triggerShutdown}.
   */

    //                                               -------
    /**
     * Displays the details of a request header item.
     *
     * @param crudMode the CRUD mode for the operation
     * @param id the ID of the request header item to display
     * @return HTML response for the details page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })

	objectAPI := api.ObjectAPI()
	if objectAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

	// check if user has permissions to perform this operation
	if s3Error := checkRequestAuthType(ctx, r, policy.GetReplicationConfigurationAction, bucket, ""); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

 * "The .NET Developer's Guide to Windows Security" (which is also
 * available online).
 * <p>
 * Direct ACEs are evaluated first in order. The SID of the user performing
 * the operation and the desired access bits are compared to the SID
 * and access mask of each ACE. If the SID matches, the allow/deny flags
 * and access mask are considered. If the ACE is a "deny"

///

/// warning | 注意

*path operation*で複数の`Form`パラメータを宣言することができますが、JSONとして受け取ることを期待している`Body`フィールドを宣言することはできません。なぜなら、リクエストは`application/json`の代わりに`application/x-www-form-urlencoded`を使ってボディをエンコードするからです。

これは **FastAPI**の制限ではなく、HTTPプロトコルの一部です。

///

## まとめ

   *
   * <p>Currently, this method is invoked while holding a lock. If an implementation of this method
   * blocks, it can prevent this service from changing state. If you need to performing a blocking
   * operation in order to trigger shutdown, consider instead registering a listener and
   * implementing {@code stopping}. Note, however, that {@code stopping} does not run at exactly the
   * same times as {@code triggerShutdown}.
   */

        assertThrows(NullPointerException.class, () -> new NetServerEnumIterator(parent, null, "*", 0, null));
    }

    @Test
    @DisplayName("Remove operation should throw UnsupportedOperationException")
    void testRemove_ThrowsUnsupportedOperationException() throws Exception {
        // Given: A valid iterator setup that will complete immediately

        // but the cleanup code with synchronized block ensures it happens atomically)
        // The important part is that no exception occurs and the operation is atomic
    }

    /**
     * Test concurrent acquire and release operations.
     */
    @Test
    public void testConcurrentAcquireRelease() throws Exception {
        // Given