final String tokenUrl = getParameter(TOKEN_URL);
        final String tokenPattern = getParameter(TOKEN_PATTERN);
        final List<Pair<String, String>> responseParams = new ArrayList<>();
        final String encoding = getParameter(ENCODING);
        if (StringUtil.isNotBlank(tokenUrl) && StringUtil.isNotBlank(tokenPattern)) {

👈 💼, **FastAPI** 🚚 👆 ⏮️ 🧰 🏗 ⚫️.

///

🕐❔ 👥 ✍ 👐 `OAuth2PasswordBearer` 🎓 👥 🚶‍♀️ `tokenUrl` 🔢. 👉 🔢 🔌 📛 👈 👩‍💻 (🕸 🏃 👩‍💻 🖥) 🔜 ⚙️ 📨 `username` & `password` ✔ 🤚 🤝.

```Python hl_lines="6"
{!../../docs_src/security/tutorial001.py!}
```

/// tip

📥 `tokenUrl="token"` 🔗 ⚖ 📛 `token` 👈 👥 🚫 ✍. ⚫️ ⚖ 📛, ⚫️ 🌓 `./token`.

Вскоре мы создадим и саму операцию пути.

/// info | "Дополнительная информация"

Если вы очень строгий "питонист", то вам может не понравиться стиль названия параметра `tokenUrl` вместо `token_url`.

```Python hl_lines="6"
{!../../docs_src/security/tutorial001.py!}
```

/// tip | "Dica"



///

Wir werden demnächst auch die eigentliche Pfadoperation erstellen.

/// info

Wenn Sie ein sehr strenger „Pythonista“ sind, missfällt Ihnen möglicherweise die Schreibweise des Parameternamens `tokenUrl` anstelle von `token_url`.

甚至可以说，它是适用于绝大多数用例的最佳方案，除非您是 OAuth2 的专家，知道为什么其它方案更合适。

本例中，**FastAPI** 还提供了构建工具。

///

创建 `OAuth2PasswordBearer` 的类实例时，要传递 `tokenUrl` 参数。该参数包含客户端（用户浏览器中运行的前端） 的 URL，用于发送 `username` 与 `password`，并获取令牌。

```Python hl_lines="6"
{!../../docs_src/security/tutorial001.py!}
```

/// tip | "提示"

在此，`tokenUrl="token"` 指向的是暂未创建的相对 URL `token`。这个相对 URL 相当于 `./token`。

We will soon also create the actual path operation.

/// info

If you are a very strict "Pythonista" you might dislike the style of the parameter name `tokenUrl` instead of `token_url`.

That's because it is using the same name as in the OpenAPI spec. So that if you need to investigate more about any of these security schemes you can just copy and paste it to find more information about it.

                """
            ),
        ] = True,
    ):
        if not scopes:
            scopes = {}
        flows = OAuthFlowsModel(
            password=cast(Any, {"tokenUrl": tokenUrl, "scopes": scopes})
        )
        super().__init__(
            flows=flows,
            scheme_name=scheme_name,
            description=description,
            auto_error=auto_error,
        )

from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()

reusable_oauth2 = OAuth2(
    flows={
        "password": {
            "tokenUrl": "token",
            "scopes": {"read:users": "Read the users", "write:users": "Create users"},
        }
    },
    auto_error=False,
)


class User(BaseModel):
    username: str

        "disabled": True,
    },
}

app = FastAPI()


def fake_hash_password(password: str):
    return "fakehashed" + password


oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")


class User(BaseModel):
    username: str
    email: Union[str, None] = None
    full_name: Union[str, None] = None
    disabled: Union[bool, None] = None


class UserInDB(User):