User user1 = createTestUser("user1", "User One");
        User user2 = createTestUser("user2", "User Two");
        User user3 = createTestUser("user3", "User Three");

        chain.update(user1);
        chain.update(user2);
        chain.update(user3);

        assertEquals(3, chain.updateCalls.size());
        assertEquals(user1, chain.updateCalls.get(0));

from fastapi import APIRouter

router = APIRouter()


@router.get("/users/", tags=["users"])
async def read_users():
    return [{"username": "Rick"}, {"username": "Morty"}]


@router.get("/users/me", tags=["users"])
async def read_user_me():
    return {"username": "fakecurrentuser"}


@router.get("/users/{username}", tags=["users"])
async def read_user(username: str):

        User user2 = createTestUser("user2");
        User user3 = createTestUser("user3");

        TestAuthenticationChain chain1 = new TestAuthenticationChain();
        TestAuthenticationChain chain2 = new TestAuthenticationChain();
        TestAuthenticationChain chain3 = new TestAuthenticationChain();

        chain1.loadResult = user1;
        chain2.loadResult = user2;
        chain3.loadResult = user3;

# Get Current User { #get-current-user }

In the previous chapter the security system (which is based on the dependency injection system) was giving the *path operation function* a `token` as a `str`:

{* ../../docs_src/security/tutorial001_an_py310.py hl[12] *}

But that is still not that useful.

Let's make it give us the current user.

## Create a user model { #create-a-user-model }

First, let's create a Pydantic user model.

## Получить пользователя { #get-the-user }

`get_current_user` будет использовать созданную нами (ненастоящую) служебную функцию, которая принимает токен типа `str` и возвращает нашу Pydantic-модель `User`:

{* ../../docs_src/security/tutorial002_an_py310.py hl[19:22,26:27] *}

## Внедрить текущего пользователя { #inject-the-current-user }

## Récupérer l'utilisateur { #get-the-user }

`get_current_user` utilisera une fonction utilitaire (factice) que nous avons créée, qui prend un token en `str` et retourne notre modèle Pydantic `User` :

{* ../../docs_src/security/tutorial002_an_py310.py hl[19:22,26:27] *}

## Injecter l'utilisateur actuel { #inject-the-current-user }

## Kullanıcıyı alın { #get-the-user }

`get_current_user`, oluşturduğumuz (sahte) bir yardımcı (utility) fonksiyonu kullanacak; bu fonksiyon `str` olarak bir token alır ve Pydantic `User` modelimizi döndürür:

{* ../../docs_src/security/tutorial002_an_py310.py hl[19:22,26:27] *}

## Mevcut kullanıcıyı enjekte edin { #inject-the-current-user }

## 获取用户 { #get-the-user }

`get_current_user` 使用创建的（伪）工具函数，该函数接收 `str` 类型的令牌，并返回 Pydantic 的 `User` 模型：

{* ../../docs_src/security/tutorial002_an_py310.py hl[19:22,26:27] *}

## 注入当前用户 { #inject-the-current-user }

在*路径操作* 的 `Depends` 中使用 `get_current_user`：

{* ../../docs_src/security/tutorial002_an_py310.py hl[31] *}

注意，此处把 `current_user` 的类型声明为 Pydantic 的 `User` 模型。

这有助于在函数内部使用代码补全和类型检查。

## Den Benutzer abrufen { #get-the-user }

`get_current_user` wird eine von uns erstellte (gefakte) Hilfsfunktion verwenden, welche einen Token vom Typ `str` entgegennimmt und unser Pydantic-`User`-Modell zurückgibt:

{* ../../docs_src/security/tutorial002_an_py310.py hl[19:22,26:27] *}

## Den aktuellen Benutzer einfügen { #inject-the-current-user }

{* ../../docs_src/security/tutorial002_an_py310.py hl[25] *}

## Obter o usuário { #get-the-user }

`get_current_user` usará uma função utilitária (falsa) que criamos, que recebe um token como uma `str` e retorna nosso modelo Pydantic `User`:

{* ../../docs_src/security/tutorial002_an_py310.py hl[19:22,26:27] *}

## Injetar o usuário atual { #inject-the-current-user }