프로덕션 환경에서는 `fastapi run` 명령어를 사용합니다. 🚀

내부적으로, **FastAPI CLI**는 고성능의, 프로덕션에 적합한, ASGI 서버인 <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a>을 사용합니다. 😎

## `fastapi dev`

`fastapi dev` 명령을 실행하면 개발 모드가 시작됩니다.

/// note | Detalles Técnicos

La imagen de Docker se creó cuando Uvicorn no soportaba gestionar y reiniciar workers muertos, por lo que era necesario usar Gunicorn con Uvicorn, lo que añadía bastante complejidad, solo para que Gunicorn gestionara y reiniciara los worker processes de Uvicorn.

Alles, was Sie also mit Starlette machen können, können Sie direkt mit **FastAPI** machen, da es sich im Grunde um Starlette auf Steroiden handelt.

///

### <a href="https://www.uvicorn.org/" class="external-link" target="_blank">Uvicorn</a>

Uvicorn ist ein blitzschneller ASGI-Server, der auf uvloop und httptools basiert.

<div class="termy">

```console
$ OPENAPI_URL= uvicorn main:app

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

</div>

Entonces podrías desactivar OpenAPI (incluyendo las UI de documentación) configurando la variable de entorno `OPENAPI_URL` a una string vacía, así:

<div class="termy">

```console
$ OPENAPI_URL= uvicorn main:app

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

</div>

Luego, si vas a las URLs en `/openapi.json`, `/docs`, o `/redoc`, solo obtendrás un error `404 Not Found` como:

Used by FastAPI:

* <a href="https://www.uvicorn.org" target="_blank"><code>uvicorn</code></a> - for the server that loads and serves your application. This includes `uvicorn[standard]`, which includes some dependencies (e.g. `uvloop`) needed for high performance serving.
* `fastapi-cli[standard]` - to provide the `fastapi` command.

For production you would use `fastapi run` instead. 🚀

Internally, **FastAPI CLI** uses <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a>, a high-performance, production-ready, ASGI server. 😎

## `fastapi dev` { #fastapi-dev }

Running `fastapi dev` initiates development mode.

Yani, Starlette ile yapabileceğiniz her şeyi, Starlette'in bir nevi güçlendirilmiş hali olan **FastAPI** ile doğrudan yapabilirsiniz.

///

### <a href="https://www.uvicorn.org/" class="external-link" target="_blank">Uvicorn</a>

Uvicorn, uvlook ile httptools üzerine kurulu ışık hzında bir ASGI sunucusudur.

🍵 🌐 🐚 🕸 🍕. ❎ ⚒ 🔛 🔝.

🎓 `FastAPI` ⚫️ 😖 🔗 ⚪️➡️ 🎓 `Starlette`.

, 🕳 👈 👆 💪 ⏮️ 💃, 👆 💪 ⚫️ 🔗 ⏮️ **FastAPI**, ⚫️ 🌖 💃 🔛 💊.

///

### <a href="https://www.uvicorn.org/" class="external-link" target="_blank">Uvicorn</a>

Uvicorn 🌩-⏩ 🔫 💽, 🏗 🔛 uvloop &amp; httptool.

⚫️ 🚫 🕸 🛠️, ✋️ 💽. 🖼, ⚫️ 🚫 🚚 🧰 🕹 ➡. 👈 🕳 👈 🛠️ 💖 💃 (⚖️ **FastAPI**) 🔜 🚚 🔛 🔝.

⚫️ 👍 💽 💃 &amp; **FastAPI**.

Натомість, для запуску у продакшн використовуйте `fastapi run`. 🚀

Всередині **FastAPI CLI** використовує <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a>, високопродуктивний, production-ready, ASGI cервер. 😎

## `fastapi dev`

Використання `fastapi dev` ініціює режим розробки.