common_parameters --> read_items
common_parameters --> read_users
```

この方法では、共有されるコードを一度書き、**FastAPI** が*path operations*のための呼び出しを行います。

/// check | "確認"

特別なクラスを作成してどこかで **FastAPI** に渡して「登録」する必要はないことに注意してください。

`Depends`を渡すだけで、**FastAPI** が残りの処理をしてくれます。

///

## `async`にするかどうか

依存関係は **FastAPI**（*path operation関数*と同じ）からも呼び出されるため、関数を定義する際にも同じルールが適用されます。

`async def`や通常の`def`を使用することができます。

from fastapi import Depends, FastAPI, Response
from fastapi.testclient import TestClient

app = FastAPI()


async def response_status_setter(response: Response):
    response.status_code = 201


async def parent_dep(result=Depends(response_status_setter)):
    return result


@app.get("/", dependencies=[Depends(parent_dep)])
async def get_main():
    return {"msg": "Hello World"}


client = TestClient(app)

## Full Stack FastAPI MongoDB

... müsaitliğime ve diğer faktörlere bağlı olarak daha sonra gelebilir. 😅 🎉

## Machine Learning modelleri, spaCy ve FastAPI

GitHub: <a href="https://github.com/microsoft/cookiecutter-spacy-fastapi" class="external-link" target="_blank">https://github.com/microsoft/cookiecutter-spacy-fastapi</a>

### Machine Learning modelleri, spaCy ve FastAPI - Features

You can see the current team members in [FastAPI People - Team](./fastapi-people.md#team){.internal-link target=_blank}.

Joining the team is by invitation only, and I could update or remove permissions, instructions, or membership.

## FastAPI Experts

The people that help others the most in GitHub Discussions can become [**FastAPI Experts**](./fastapi-people.md#fastapi-experts){.internal-link target=_blank}.

{!../../docs_src/websockets/tutorial001.py!}
```

## Criando um `websocket`

Em sua aplicação **FastAPI**, crie um `websocket`:

{*../../docs_src/websockets/tutorial001.py hl[46:47]*}

/// note | Detalhes Técnicos

Você também poderia usar `from starlette.websockets import WebSocket`.

### FastAPI Data Filtering

Now, for FastAPI, it will see the return type and make sure that what you return includes **only** the fields that are declared in the type.

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/", operation_id="some_specific_id_you_define")
async def read_items():

using them to decorate a function with a single `yield`.

That's what **FastAPI** uses internally for dependencies with `yield`.

But you don't have to use the decorators for FastAPI dependencies (and you shouldn't).

FastAPI will do it for you internally.

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_item(item_id: int):

from typing import Annotated, Union

from fastapi import Body, FastAPI, status
from fastapi.responses import JSONResponse

app = FastAPI()

items = {"foo": {"name": "Fighters", "size": 6}, "bar": {"name": "Tenders", "size": 3}}


@app.put("/items/{item_id}")
async def upsert_item(
    item_id: str,
    name: Annotated[Union[str, None], Body()] = None,
    size: Annotated[Union[int, None], Body()] = None,
):
    if item_id in items: