But a dotenv file doesn't really have to have that exact filename.

///

Pydantic has support for reading from these types of files using an external library. You can read more at <a href="https://docs.pydantic.dev/latest/concepts/pydantic_settings/#dotenv-env-support" class="external-link" target="_blank">Pydantic Settings: Dotenv (.env) support</a>.

/// tip

For this to work, you need to `pip install python-dotenv`.

///

## Instalacja

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>

Na serwerze produkcyjnym będziesz także potrzebował serwera ASGI, np. <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a> lub <a href="https://github.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a>.

///

## Дополнительная информация

Для более глубокого изучения темы воспользуйтесь документацией Starlette:

* <a href="https://www.starlette.io/websockets/" class="external-link" target="_blank">The `WebSocket` class</a>.

### Compruébalo

Abre tu navegador en <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

Verás el response JSON como:

```JSON
{"message": "Hello World"}
```

### Documentación interactiva de la API

Ahora ve a <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

* <a href="https://www.uvicorn.org/" class="external-link" target="_blank">Uvicorn</a> : un serveur ASGI haute performance.
* <a href="https://hypercorn.readthedocs.io/" class="external-link" target="_blank">Hypercorn</a> : un serveur
  ASGI compatible avec HTTP/2 et Trio entre autres fonctionnalités.
* <a href="https://github.com/django/daphne" class="external-link" target="_blank">Daphne</a> : le serveur ASGI
  conçu pour Django Channels.

**Typer**は FastAPI の弟分です。そして、**CLI 版 の FastAPI**を意味しています。

## 必要条件

FastAPI は巨人の肩の上に立っています。

- Web の部分は<a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a>
- データの部分は<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a>

## インストール

Geri kalanı ise **FastAPI** tarafından işlenecektir.

Eğer uygulamanızı çalıştırıp <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a> adresine giderseniz, Flask'tan gelen yanıtı göreceksiniz:

```txt
Hello, World from Flask!
```

Eğer <a href="http://localhost:8000/v2/" class="external-link" target="_blank">http://localhost:8000/v2/</a> adresine giderseniz, FastAPI'dan gelen yanıtı göreceksiniz:

```JSON

## External Contributions

External contributions are very welcome and appreciated, including answering questions, submitting PRs, etc. 🙇‍♂️

* **Standards-basiert**: Basierend auf (und vollständig kompatibel mit) den offenen Standards für APIs: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (früher bekannt als Swagger) und <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.

<small>* Schätzung auf Basis von Tests in einem internen Entwicklungsteam, das Produktionsanwendungen erstellt.</small>

* <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank"><strong>Swagger UI</strong></a>, z interaktywnym interfejsem - odpytuj i testuj swoje API bezpośrednio z przeglądarki.

![Swagger UI interakcja](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* Alternatywna dokumentacja API z <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank"><strong>ReDoc</strong></a>.