## Abhängigkeiten installieren

Installieren Sie `jinja2`:

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## Verwendung von `Jinja2Templates`

* Importieren Sie `Jinja2Templates`.
* Erstellen Sie ein `templates`-Objekt, das Sie später wiederverwenden können.

설정을 쉽게 할 수 있는 유틸리티가 있으며, 이를 **FastAPI** 애플리케이션에서 직접 사용할 수 있습니다(Starlette 제공).

## 의존성 설치

가상 환경을 생성하고(virtual environment{.internal-link target=_blank}), 활성화한 후 jinja2를 설치해야 합니다:


<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## 사용하기 `Jinja2Templates`

* `Jinja2Templates`를 가져옵니다.
* 나중에 재사용할 수 있는 `templates` 객체를 생성합니다.
* 템플릿을 반환할 경로 작업에 `Request` 매개변수를 선언합니다.

Để chạy ứng dụng FastAPI của bạn cho quá trình phát triển (development), bạn có thể sử dụng lệnh `fastapi dev`:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting development server 🚀

- Transitioned Hot Tier's as pooled setups are not currently supported, attempting to decommission buckets with ILM Transition will be rejected by the server. This will be supported in future releases.

### اسناد API خودکار را بررسی کنید

برنامه را با استفاده از ‘uvicorn‘ اجرا کنید، اگر فایل شما ‘main.py‘ نام دارد، دستور زیر را وارد کنید:
<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Par exemple:

{* ../../docs_src/additional_responses/tutorial004.py hl[13:17,26] *}

## Plus d'informations sur les réponses OpenAPI

Pour voir exactement ce que vous pouvez inclure dans les réponses, vous pouvez consulter ces sections dans la spécification OpenAPI :

Для запуску Вашого FastAPI проекту для розробки, Ви можете скористатись командою `fastapi dev`:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:single">main.py</u>
<font color="#3465A4">INFO    </font> Using path <font color="#3465A4">main.py</font>

Para ver cómo lograr este paralelismo en producción, consulta la sección sobre [Deployment](deployment/index.md){.internal-link target=_blank}.

## `async` y `await`

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console
$ pip install email-validator
```

or with:

```console
$ pip install "pydantic[email]"
```

///

And we are using this model to declare our input and the same model to declare our output:

Certifique-se de criar um [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ative-o e instale-o, por exemplo:

```console
$ pip install email-validator
```

ou com:

```console
$ pip install "pydantic[email]"
```

///

E estamos usando este modelo para declarar nossa entrada e o mesmo modelo para declarar nossa saída: