Sebastián Ramírez <******@****.***> 1679142599 +0100

Sebastián Ramírez <******@****.***> 1679142599 +0100

Sebastián Ramírez <******@****.***> 1728503082 +0200

# 取得目前使用者 { #get-current-user }

在前一章，基於依賴注入系統的安全機制會把一個 `token`（作為 `str`）提供給*路徑操作函式*：

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

但這還不太有用。

讓它改為回傳目前使用者吧。

## 建立使用者模型 { #create-a-user-model }

先建立一個 Pydantic 的使用者模型。

就像用 Pydantic 宣告請求體一樣，我們也可以在其他地方使用它：

{* ../../docs_src/security/tutorial002_an_py310.py hl[5,12:6] *}

## 建立 `get_current_user` 依賴 { #create-a-get-current-user-dependency }

{* ../../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.

The same way we use Pydantic to declare bodies, we can use it anywhere else:

{* ../../docs_src/security/tutorial002_an_py310.py hl[5,12:6] *}

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

## 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] *}

{* ../../docs_src/custom_request_and_route/tutorial002_an_py310.py hl[14,16] *}

If an exception occurs, the`Request` instance will still be in scope, so we can read and make use of the request body when handling the error:

{* ../../docs_src/custom_request_and_route/tutorial002_an_py310.py hl[17:19] *}

## Custom `APIRoute` class in a router { #custom-apiroute-class-in-a-router }

* *path operation*’ınızda bir dependency ile bu `security`’yi kullanın.
* Bu, `HTTPBasicCredentials` tipinde bir nesne döndürür:
    * İçinde gönderilen `username` ve `password` bulunur.

{* ../../docs_src/security/tutorial006_an_py310.py hl[4,8,12] *}

URL’yi ilk kez açmaya çalıştığınızda (veya dokümanlardaki "Execute" butonuna tıkladığınızda) tarayıcı sizden kullanıcı adınızı ve şifrenizi ister:

<img src="/img/tutorial/security/image12.png">

///

## `File` 임포트 { #import-file }

`fastapi` 에서 `File` 과 `UploadFile` 을 임포트 합니다:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}

## `File` 매개변수 정의 { #define-file-parameters }

`Body` 및 `Form` 과 동일한 방식으로 파일의 매개변수를 생성합니다:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[9] *}

/// info | 정보

`File` 은 `Form` 으로부터 직접 상속된 클래스입니다.

{* ../../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 }