# Templates

You can use any template engine you want with **FastAPI**.

A common choice is Jinja2, the same one used by Flask and other tools.

There are utilities to configure it easily that you can use directly in your **FastAPI** application (provided by Starlette).

## Install dependencies

Install `jinja2`:

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

Donc, pendant ce temps, l'ordinateur pourra effectuer d'autres tâches, pendant que "fichier-lent" 📝 se termine.

    Mas `open()` não usa `async` e `await`.

    Então, nós declaramos uma função de manipulação de evento com o padrão `def` ao invés de `async def`.

### `startup` e `shutdown` juntos

Há uma grande chance que a lógica para sua *inicialização* e *encerramento* esteja conectada, você pode querer iniciar alguma coisa e então finalizá-la, adquirir um recurso e então liberá-lo, etc.

---

**FastAPI** doesn't make any compromise with any database, data model or tool.

It gives you all the flexibility to choose the ones that fit your project the best.

In this case, it would be better to get **one extra server** and run some processes on it so that they all have **enough RAM and CPU time**.

There's also the chance that for some reason you have a **spike** of usage of your API. Maybe it went viral, or maybe some other services or bots start using it. And you might want to have extra resources to be safe in those cases.

As Python advances, **newer versions** come with improved support for these type annotations and in many cases you won't even need to import and use the `typing` module to declare the type annotations.

If you can choose a more recent version of Python for your project, you will be able to take advantage of that extra simplicity.

In all the docs there are examples compatible with each version of Python (when there's a difference).

Então, durante esse tempo, o computador pode ir e fazer outro trabalho, enquanto o "arquivo lento" 📝 termine.

Então o computador / programa 🤖 irá voltar toda hora que tiver uma chance porquê ele ainda está esperando o "arquivo lento", ou ele 🤖 nunca irá terminar todo o trabalho que tem até esse ponto. E ele 🤖 irá ver se alguma das tarefas que estava esperando já terminaram, fazendo o que quer que tinham que fazer.

## Alternativ (alt): `Query` als Defaultwert

Frühere Versionen von FastAPI (vor <abbr title="vor 2023-03">0.95.0</abbr>) benötigten `Query` als Defaultwert des Parameters, statt es innerhalb von `Annotated` unterzubringen. Die Chance ist groß, dass Sie Quellcode sehen, der das immer noch so macht, darum erkläre ich es Ihnen.

!!! tip "Tipp"

* 🌐 Fix Korean translation for `docs/ko/docs/index.md`. PR [#11296](https://github.com/tiangolo/fastapi/pull/11296) by [@choi-haram](https://github.com/choi-haram).
* 🌐 Add Korean translation for `docs/ko/docs/about/index.md`. PR [#11299](https://github.com/tiangolo/fastapi/pull/11299) by [@choi-haram](https://github.com/choi-haram).

do FastAPI.

!!! tip "Dica"
    Para perguntas, pergunte nas <a href="https://github.com/tiangolo/fastapi/issues/new/choose" class="external-link" target="_blank">questões do GitHub</a>, lá tem um chance maior de você ser ajudado sobre o FastAPI [FastAPI Experts](fastapi-people.md#especialistas){.internal-link target=_blank}.

    Use o chat apenas para outro tipo de assunto.