Muitos desenvolvedores e times já dependem do **FastAPI** para seus projetos (incluindo eu e meu time).

Mas ainda há muitas melhorias e funcionalidades a vir.

**FastAPI** tem um grande futuro à frente.

    ```

=== "Python 3.8+"

    ```Python hl_lines="1  8"
    {!> ../../../docs_src/extra_models/tutorial005.py!}
    ```

## Recap

Use multiple Pydantic models and inherit freely for each case.

Plus jamais vous ne vous tromperez en tapant le nom d'une clé, vous ne ferez des aller-retour entre votre code et la documentation ou vous ne scrollerez de haut en bas afin d'enfin savoir si vous devez taper `username` ou `user_name`.

### Court

)

_T = TypeVar("_T")


@asynccontextmanager
async def contextmanager_in_threadpool(
    cm: ContextManager[_T],
) -> AsyncGenerator[_T, None]:
    # blocking __exit__ from running waiting on a free thread
    # can create race conditions/deadlocks if the context manager itself
    # has its own internal pool (e.g. a database connection pool)
    # to avoid this we let __exit__ run without a capacity limit

!!! warning
    If you are just starting, the tutorial [SQL (Relational) Databases](../tutorial/sql-databases.md){.internal-link target=_blank} that uses SQLAlchemy should be enough.

    Feel free to skip this.

    Peewee is not recommended with FastAPI as it doesn't play well with anything async Python. There are several better alternatives.

!!! info
    These docs assume Pydantic v1.

Pagas 💸.

<img src="https://fastapi.tiangolo.com/img/async/parallel-burgers/parallel-burgers-02.png" alt="illustration">

El cajero va a la cocina 👨‍🍳.

Esperas, de pie frente al mostrador 🕙, para que nadie más recoja tus hamburguesas 🍔, ya que no hay números para los turnos.

<img src="https://fastapi.tiangolo.com/img/async/parallel-burgers/parallel-burgers-03.png" alt="illustration">

* `ge`: maior que ou igual (`g`reater than or `e`qual)
* `lt`: menor que (`l`ess `t`han)
* `le`: menor que ou igual (`l`ess than or `e`qual)

!!! info "Informação"
    `Query`, `Path` e outras classes que você verá a frente são subclasses de uma classe comum `Param`.

    Todas elas compartilham os mesmos parâmetros para validação adicional e metadados que você viu.

!!! note "Detalhes Técnicos"

OAuth2 doesn't specify how to encrypt the communication, it expects you to have your application served with HTTPS.

!!! tip
    In the section about **deployment** you will see how to set up HTTPS for free, using Traefik and Let's Encrypt.


## OpenID Connect

OpenID Connect is another specification, based on **OAuth2**.

!!! note
    `PATCH` is less commonly used and known than `PUT`.

    And many teams use only `PUT`, even for partial updates.

    You are **free** to use them however you want, **FastAPI** doesn't impose any restrictions.

    But this guide shows you, more or less, how they are intended to be used.

### Using Pydantic's `exclude_unset` parameter

    Nutzen Sie den Chat nur für andere allgemeine Gespräche.

### Den Chat nicht für Fragen verwenden

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