✋️ 👈 🔜 🕴 ✔ 🎯 🆎 📻, 🚫 🌐 👈 🔌 🎓: 🍪, ✔ 🎚 💖 📚 ⚙️ ⏮️ 📨 🤝, ♒️.

, 🌐 👷 ☑, ⚫️ 👻 ✔ 🎯 ✔ 🇨🇳.

## ⚙️ `CORSMiddleware`

👆 💪 🔗 ⚫️ 👆 **FastAPI** 🈸 ⚙️ `CORSMiddleware`.

* 🗄 `CORSMiddleware`.
* ✍ 📇 ✔ 🇨🇳 (🎻).
* 🚮 ⚫️ "🛠️" 👆 **FastAPI** 🈸.

👆 💪 ✔ 🚥 👆 👩‍💻 ✔:

* 🎓 (✔ 🎚, 🍪, ♒️).
* 🎯 🇺🇸🔍 👩‍🔬 (`POST`, `PUT`) ⚖️ 🌐 👫 ⏮️ 🃏 `"*"`.
* 🎯 🇺🇸🔍 🎚 ⚖️ 🌐 👫 ⏮️ 🃏 `"*"`.

Or it might be the case that you just prefer to take other courses because they adapt better to your learning style.

Some course providers ✨ [**sponsor FastAPI**](../help-fastapi.md#sponsor-the-author){.internal-link target=_blank} ✨, this ensures the continued and healthy **development** of FastAPI and its **ecosystem**.

```Python
... = Depends(CommonQueryParams)
```

... **FastAPI**가 실제로 어떤 것이 의존성인지 알기 위해서 사용하는 방법입니다.
FastAPI는 선언된 매개변수들을 추출할 것이고 실제로 이 변수들을 호출할 것입니다.

---

이 경우에, 첫번째 `CommonQueryParams` 변수를 보면:

```Python
commons: CommonQueryParams ...
```

... **FastAPI**는 `CommonQueryParams` 변수에 어떠한 특별한 의미도 부여하지 않습니다. FastAPI는 이 변수를 데이터 변환, 검증 등에 활용하지 않습니다. (활용하려면 `= Depends(CommonQueryParams)`를 사용해야 합니다.)

Um diese zu konfigurieren, übergeben Sie das Argument `swagger_ui_parameters` beim Erstellen des `FastAPI()`-App-Objekts oder an die Funktion `get_swagger_ui_html()`.

`swagger_ui_parameters` empfängt ein Dict mit den Konfigurationen, die direkt an die Swagger-Oberfläche übergeben werden.

FastAPI konvertiert die Konfigurationen nach **JSON**, um diese mit JavaScript kompatibel zu machen, da die Swagger-Oberfläche das benötigt.

👉 📄 👆 🔜 👀 ❔.

## 😐 🛠️

😐 (🔢) 🛠️, ⏩.

`FastAPI` 🈸 (👐) ✔️ `.openapi()` 👩‍🔬 👈 📈 📨 🗄 🔗.

🍕 🈸 🎚 🏗, *➡ 🛠️* `/openapi.json` (⚖️ ⚫️❔ 👆 ⚒ 👆 `openapi_url`) ®.

⚫️ 📨 🎻 📨 ⏮️ 🏁 🈸 `.openapi()` 👩‍🔬.

🔢, ⚫️❔ 👩‍🔬 `.openapi()` 🔨 ✅ 🏠 `.openapi_schema` 👀 🚥 ⚫️ ✔️ 🎚 & 📨 👫.

🚥 ⚫️ 🚫, ⚫️ 🏗 👫 ⚙️ 🚙 🔢 `fastapi.openapi.utils.get_openapi`.

& 👈 🔢 `get_openapi()` 📨 🔢:

## Webhooks mit **FastAPI** und OpenAPI dokumentieren

from typing import Annotated, Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


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


@app.put("/items/{item_id}")
async def update_item(

from datetime import datetime, time, timedelta
from typing import Annotated, Union
from uuid import UUID

from fastapi import Body, FastAPI

app = FastAPI()


@app.put("/items/{item_id}")
async def read_items(
    item_id: UUID,
    start_datetime: Annotated[datetime, Body()],
    end_datetime: Annotated[datetime, Body()],
    process_after: Annotated[timedelta, Body()],
    repeat_at: Annotated[Union[time, None], Body()] = None,
):

from datetime import datetime

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Subscription(BaseModel):
    username: str
    monthly_fee: float
    start_date: datetime


@app.webhooks.post("new-subscription")
def new_subscription(body: Subscription):
    """
    When a new user subscribes to your service we'll send you a POST request with this

Wenn Sie die `async`-Methoden verwenden, führt **FastAPI** die Datei-Methoden in einem <abbr title="Mehrere unabhängige Kindprozesse">Threadpool</abbr> aus und erwartet sie.

///

/// note | "Technische Details zu Starlette"

**FastAPI**s `UploadFile` erbt direkt von **Starlette**s `UploadFile`, fügt aber ein paar notwendige Teile hinzu, um es kompatibel mit **Pydantic** und anderen Teilen von FastAPI zu machen.

///