Doing that in separated functions that don't share logic or variables together is more difficult as you would need to store values in global variables or similar tricks.

Because of that, it's now recommended to instead use the `lifespan` as explained above.

## Technical Details

Just a technical detail for the curious nerds. 🤓

    ```

=== "Python 3.8+"

    ```Python hl_lines="9"
    {!> ../../../docs_src/path_params_numeric_validations/tutorial002_an.py!}
    ```

## Order the parameters as you need, tricks

!!! tip
    This is probably not as important or necessary if you use `Annotated`.

Here's a **small trick** that can be handy, but you won't need it often.

If you want to:

                # It would probably make more sense for all response classes to have an
                # explicit default status_code, and to extract it from them, instead of
                # doing this inspection tricks, that would probably be in the future
                # TODO: probably make status_code a default class attribute for all
                # responses in Starlette

Essa combinação de Flask, Flask-apispec com Marshmallow e Webargs foi meu _backend stack_ favorito até construir **FastAPI**.

Usando essa combinação levou a criação de vários geradores Flask _full-stack_. Há muitas _stacks_ que eu (e vários times externos) estou utilizando até agora:

* <a href="https://github.com/tiangolo/full-stack" class="external-link" target="_blank">https://github.com/tiangolo/full-stack</a>

    [
        ("/items", None, 200, {"ads_id": None}),
        ("/items", {"ads_id": "ads_track"}, 200, {"ads_id": "ads_track"}),
        (
            "/items",
            {"ads_id": "ads_track", "session": "cookiesession"},
            200,
            {"ads_id": "ads_track"},
        ),
        ("/items", {"session": "cookiesession"}, 200, {"ads_id": None}),
    ],
)

So, we need to do some extra tricks to make it work as if it was just using `threading.local`. The `__init__`, `__setattr__`, and `__getattr__` implement all the required tricks for this to be used by Peewee without knowing that it is now compatible with FastAPI.

!!! tip

  - author: Nicoló Lino
    author_link: https://www.nlino.com
    link: https://github.com/softwarebloat/python-tracing-demo
    title: Instrument a FastAPI service adding tracing with OpenTelemetry and send/show traces in Grafana Tempo
  - author: Mikhail Rozhkov, Elena Samuylova
    author_link: https://www.linkedin.com/in/mnrozhkov/
    link: https://www.evidentlyai.com/blog/fastapi-tutorial

* İleri seviye fakat bir o kadarda basit olan **çok derin JSON modelleri** (Pydantic sayesinde).
* **GraphQL** entegrasyonu: <a href="https://strawberry.rocks" class="external-link" target="_blank">Strawberry</a> ve diğer kütüphaneleri kullanarak.
* Diğer ekstra özellikler (Starlette sayesinde):
    * **WebSocketler**
    * HTTPX ve `pytest` sayesinde aşırı kolay testler.

* Intégration de **GraphQL** avec <a href="https://strawberry.rocks" class="external-link" target="_blank">Strawberry</a> et d'autres bibliothèques.
* D'obtenir de nombreuses fonctionnalités supplémentaires (grâce à  Starlette) comme :
    * **WebSockets**

* 💂‍♂ & 🤝, ✅ 🐕‍🦺 **Oauth2️⃣** ⏮️ **🥙 🤝** & **🇺🇸🔍 🔰** 🔐.
* 🌅 🏧 (✋️ 😨 ⏩) ⚒ 📣 **🙇 🐦 🎻 🏷** (👏 Pydantic).
* **🕹** 🛠️ ⏮️ <a href="https://strawberry.rocks" class="external-link" target="_blank">🍓</a> &amp; 🎏 🗃.
* 📚 ➕ ⚒ (👏 💃):
    * ** *️⃣ **
    * 📶 ⏩ 💯 ⚓️ 🔛 🇸🇲 &amp; `pytest`
    * **⚜**
    * **🍪 🎉**
    * ...&amp; 🌖.

## 🎭