if (groupId == null || groupId.length() <= 0) {
                problems.add(new ModelProblemCollectorRequest(Severity.ERROR, Version.BASE)
                        .setMessage("'dependencyManagement.dependencies.dependency.groupId' for "
                                + dependency.getManagementKey() + " is missing.")
                        .setLocation(dependency.getLocation("")));
                continue;
            }

        assertTrue(tag.toString().contains("attrName=role"));
        assertTrue(tag.toString().contains("attrValue=link"));
    }

    // Mock implementation of Node for testing without external dependencies
    private static class MockNode implements Node {
        private final String nodeName;
        private final Map<String, MockNode> attributes = new HashMap<>();

これはあなた自身のコードで実装する必要があり、これらのJSONキーを使っていることを確認してください。

仕様に準拠するために、あなた自身が正しく覚えて実装すべきことは、ほぼこれだけです。

それ以外は **FastAPI** が面倒を見てくれます。

///

## 依存関係の更新 { #update-the-dependencies }

ここで依存関係を更新します。

アクティブなユーザーの場合にのみ `current_user` を取得したいとします。

そこで、`get_current_active_user` を依存関係として利用する追加の依存関係 `get_current_active_user` を作成します。

///

/// tip

If you need to do any type of validation that requires communicating with any **external component**, like a database or another API, you should instead use **FastAPI Dependencies**, you will learn about them later.

These custom validators are for things that can be checked with **only** the **same data** provided in the request.

///

### Understand that Code { #understand-that-code }

* Todas estas *path operations* tendrán la lista de `dependencies` evaluadas/ejecutadas antes de ellas.
  * Si también declaras dependencias en una *path operation* específica, **también se ejecutarán**.
  * Las dependencias del router se ejecutan primero, luego las [`dependencies` en el decorador](dependencies/dependencies-in-path-operation-decorators.md), y luego las dependencias de parámetros normales.

* Todas essas *operações de rota* terão a list de `dependencies` avaliada/executada antes delas.
    * Se você também declarar dependências em uma *operação de rota* específica, **elas também serão executadas**.
    * As dependências do router são executadas primeiro, depois as [`dependencies` no decorador](dependencies/dependencies-in-path-operation-decorators.md) e, em seguida, as dependências de parâmetros normais.

Using `check_same_thread=False` allows FastAPI to use the same SQLite database in different threads. This is necessary as **one single request** could use **more than one thread** (for example in dependencies).

Don't worry, with the way the code is structured, we'll make sure we use **a single SQLModel *session* per request** later, this is actually what the `check_same_thread` is trying to achieve.

 *       class instead.
 *   <li>If checking an <i>impossible</i> condition (which <i>cannot</i> happen unless your own
 *       class or its <i>trusted</i> dependencies is badly broken), this is what ordinary Java
 *       assertions are for. Note that assertions are not enabled by default; they are essentially
 *       considered "compiled comments."

建立一個權杖有效期的變數。

定義一個用於權杖端點回應的 Pydantic Model。

建立一個工具函式來產生新的 access token。

{* ../../docs_src/security/tutorial004_an_py310.py hl[4,7,13:15,29:31,82:90] *}

## 更新相依項目 { #update-the-dependencies }

更新 `get_current_user`，讓它仍接收相同的權杖，但這次改用 JWT 權杖。

解碼收到的權杖、驗證它，並回傳目前的使用者。

如果權杖無效，立即回傳一個 HTTP 錯誤。

{* ../../docs_src/security/tutorial004_an_py310.py hl[93:110] *}

创建一个变量用于设置令牌的过期时间。

定义一个用于令牌端点响应的 Pydantic 模型。

创建一个生成新访问令牌的工具函数。

{* ../../docs_src/security/tutorial004_an_py310.py hl[4,7,13:15,29:31,82:90] *}

## 更新依赖项 { #update-the-dependencies }

更新 `get_current_user` 以接收与之前相同的令牌，但这次使用的是 JWT 令牌。

解码接收到的令牌，进行校验，并返回当前用户。

如果令牌无效，立即返回一个 HTTP 错误。

{* ../../docs_src/security/tutorial004_an_py310.py hl[93:110] *}