```

## Create a `get_current_user` dependency

Let's create a dependency `get_current_user`.

Remember that dependencies can have sub-dependencies?

`get_current_user` will have a dependency with the same `oauth2_scheme` we created before.

{!../../../docs_src/security/tutorial002.py!}
```

## 创建 `get_current_user` 依赖项

创建 `get_current_user` 依赖项。

还记得依赖项支持子依赖项吗？

`get_current_user` 使用 `oauth2_scheme` 作为依赖项。

与之前直接在路径操作中的做法相同，新的 `get_current_user` 依赖项从子依赖项 `oauth2_scheme` 中接收 `str` 类型的 `token`：

```Python hl_lines="25"
{!../../../docs_src/security/tutorial002.py!}
```

## 获取用户

`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：

    ```Python hl_lines="3  10-14"
    {!> ../../../docs_src/security/tutorial002_py310.py!}
    ```

## ✍ `get_current_user` 🔗

➡️ ✍ 🔗 `get_current_user`.

💭 👈 🔗 💪 ✔️ 🎧-🔗 ❓

`get_current_user` 🔜 ✔️ 🔗 ⏮️ 🎏 `oauth2_scheme` 👥 ✍ ⏭.

🎏 👥 🔨 ⏭ *➡ 🛠️* 🔗, 👆 🆕 🔗 `get_current_user` 🔜 📨 `token` `str` ⚪️➡️ 🎧-🔗 `oauth2_scheme`:

=== "🐍 3️⃣.6️⃣ & 🔛"

    ```Python hl_lines="25"

New features are added frequently, bugs are fixed regularly, and the code is still continuously improving.

That's why the current versions are still `0.x.x`, this reflects that each version could potentially have breaking changes. This follows the <a href="https://semver.org/" class="external-link" target="_blank">Semantic Versioning</a> conventions.

!!! note "Technical Details"
    The ASGI specification defines a `root_path` for this use case.

    And the `--root-path` command line option provides that `root_path`.

### Checking the current `root_path`

You can get the current `root_path` used by your application for each request, it is part of the `scope` dictionary (that's part of the ASGI spec).

Here we are including it in the message just for demonstration purposes.

➡️ 📄 🔄 👉 🔗 🌲 & ↔.

`get_current_active_user` 🔗 ✔️ 🎧-🔗 🔛 `get_current_user`, ↔ `"me"` 📣 `get_current_active_user` 🔜 🔌 📇 ✔ ↔ `security_scopes.scopes` 🚶‍♀️ `get_current_user`.

*➡ 🛠️* ⚫️ 📣 ↔, `"items"`, 👉 🔜 📇 `security_scopes.scopes` 🚶‍♀️ `get_current_user`.

📥 ❔ 🔗 🔗 & ↔ 👀 💖:

*  *➡ 🛠️* `read_own_items` ✔️:
    * ✔ ↔ `["items"]` ⏮️ 🔗:
    * `get_current_active_user`:

```mermaid
graph TB

current_user(["current_user"])
active_user(["active_user"])
admin_user(["admin_user"])
paying_user(["paying_user"])

public["/items/public/"]
private["/items/private/"]
activate_user["/users/{user_id}/activate"]
pro_items["/items/pro/"]

current_user --> active_user
active_user --> admin_user
active_user --> paying_user

current_user --> public
active_user --> private

If you added the return type annotation, tools and editors would complain with a (correct) error telling you that your function is returning a type (e.g. a dict) that is different from what you declared (e.g. a Pydantic model).

코드에서 직접 Uvicorn 서버를 실행하고 있기 때문에 디버거에서 직접 Python 프로그램(FastAPI 애플리케이션)을 호출할 수 있습니다.

---

예를 들어 Visual Studio Code에서 다음을 수행할 수 있습니다.

* "Debug" 패널로 이동합니다.
* "Add configuration...".
* "Python"을 선택합니다.
* "`Python: Current File (Integrated Terminal)`" 옵션으로 디버거를 실행합니다.

그런 다음 **FastAPI** 코드로 서버를 시작하고 중단점 등에서 중지합니다.

다음과 같이 표시됩니다.

<img src="/img/tutorial/debugging/image01.png">

---

Pycharm을 사용하는 경우 다음을 수행할 수 있습니다

# Testing a Database

!!! info
    These docs are about to be updated. 🎉

    The current version assumes Pydantic v1, and SQLAlchemy versions less than 2.0.

    The new docs will include Pydantic v2 and will use <a href="https://sqlmodel.tiangolo.com/" class="external-link" target="_blank">SQLModel</a> (which is also based on SQLAlchemy) once it is updated to use Pydantic v2 as well.