from fastapi import Depends, FastAPI

app = FastAPI()


fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")
async def read_items(commons: CommonQueryParams = Depends(CommonQueryParams)):
    response = {}

from fastapi import Depends, FastAPI

app = FastAPI()


fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")
async def read_items(commons: CommonQueryParams = Depends()):
    response = {}

### `UploadFile` { #uploadfile }

`UploadFile` имеет следующие атрибуты:

* `filename`: Строка `str` с исходным именем файла, который был загружен (например, `myimage.jpg`).
* `content_type`: Строка `str` с типом содержимого (MIME type / media type) (например, `image/jpeg`).

from fastapi import Depends, FastAPI

app = FastAPI()


fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")
async def read_items(commons: Annotated[CommonQueryParams, Depends()]):

with an Identity Management Plugin webhook. When configured, this plugin enables the `AssumeRoleWithCustomToken` STS API extension. A user or application can now present a token to the `AssumeRoleWithCustomToken` API, and MinIO verifies this token by sending it to the Identity Management Plugin webhook. This plugin responds with some information and MinIO is able to generate temporary STS credentials to interact with object storage.

The authentication flow is similar to that of OpenID, however...

Для этого мы обновляем Pydantic‑модель `TokenData`, добавляя новое свойство `scopes`.

Валидируя данные с помощью Pydantic, мы можем удостовериться, что у нас, например, именно `list` из `str` со scopes и `str` с `username`.

А не, скажем, `dict` или что‑то ещё — ведь это могло бы где‑то позже сломать приложение и создать риск для безопасности.

编写带有类型标注的标准 Python：

```Python
from datetime import date

from pydantic import BaseModel

# 将变量声明为 str
# 并在函数内获得编辑器支持
def main(user_id: str):
    return user_id


# 一个 Pydantic 模型
class User(BaseModel):
    id: int
    name: str
    joined: date
```

可以像这样来使用：

```Python
my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

second_user_data = {

### `UploadFile` { #uploadfile }

`UploadFile` 的属性如下：

* `filename`：上传的原始文件名字符串（`str`），例如 `myimage.jpg`。
* `content_type`：内容类型（MIME 类型 / 媒体类型）的字符串（`str`），例如 `image/jpeg`。

다음과 같이 임포트하셔도 좋습니다. `from starlette import status`.

**FastAPI**는 개발자 여러분의 편의를 위해 `starlette.status`와 동일한 `fastapi.status`를 제공합니다. 하지만 이는 Starlette에서 직접 온 것입니다.

///

## 태그 { #tags }

(보통 단일 `str`인) `str`로 구성된 `list`와 함께 매개변수 `tags`를 전달하여, *경로 처리*에 태그를 추가할 수 있습니다:

{* ../../docs_src/path_operation_configuration/tutorial002_py310.py hl[15,20,25] *}

전달된 태그들은 OpenAPI의 스키마에 추가되며, 자동 문서 인터페이스에서 사용됩니다:

當你為非路徑參數（目前我們只看到查詢參數）宣告了預設值時，它就不是必填。

若你不想提供特定預設值、只想讓它為選填，將預設值設為 `None`。

但若你要讓查詢參數成為必填，只要不要宣告任何預設值：

{* ../../docs_src/query_params/tutorial005_py310.py hl[6:7] *}

此處查詢參數 `needy` 是必填的 `str`。

如果你在瀏覽器中開啟如下的 URL：

```
http://127.0.0.1:8000/items/foo-item
```

...沒有加上必填的 `needy` 參數，你會看到類似這樣的錯誤：

```JSON
{
  "detail": [
    {
      "type": "missing",