<div class="termy">

```console
$ openssl rand -hex 32

09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7
```

</div>

E copie a saída para a variável `SECRET_KEY` (não use a do exemplo).

Crie uma variável `ALGORITHM` com o algoritmo usado para assinar o token JWT e defina como `"HS256"`.

Crie uma variável para a expiração do token.

and night!  You see the earth takes twenty-four hours to turn
round on its axis--'

  `Talking of axes,' said the Duchess, `chop off her head!'

  Alice glanced rather anxiously at the cook, to see if she meant
to take the hint; but the cook was busily stirring the soup, and
seemed not to be listening, so she went on again:  `Twenty-four
hours, I THINK; or is it twelve?  I--'

    handling in WebSockets is significantly improved.
 *  Fix: Don't use SPDY/3 style header concatenation for HTTP/2 request headers.
    This could have corrupted requests where multiple headers had the same name,
    as in cookies.
 *  Fix: Reject bad characters in the URL hostname. Previously characters like
    `\0` would cause a late crash when building the request.
 *  Fix: Allow interceptors to change the request method.

    ///

    L'option `--upgrade` indique à `pip` de mettre à niveau les paquets s'ils sont déjà installés.

    Comme l'étape précédente de copie du fichier peut être détectée par le **cache Docker**, cette étape **utilisera également le cache Docker** lorsqu'il est disponible.

# Primeiros Passos { #first-steps }

O arquivo FastAPI mais simples pode se parecer com:

{* ../../docs_src/first_steps/tutorial001_py310.py *}

Copie o conteúdo para um arquivo `main.py`.

Execute o servidor ao vivo:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev

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

Por ejemplo, si el **servidor de aplicaciones** solo está recibiendo comunicación del **proxy** de confianza, puedes establecerlo en `--forwarded-allow-ips="*"` para hacer que confíe en todas las IPs entrantes, ya que solo recibirá requests desde la IP que sea utilizada por el **proxy**.

De esta manera la aplicación podrá saber cuál es su propia URL pública, si está usando HTTPS, el dominio, etc.

pkg syscall (linux-arm-cgo), type Inet6Pktinfo struct, Ifindex uint32
pkg syscall (linux-arm-cgo), type InotifyEvent struct
pkg syscall (linux-arm-cgo), type InotifyEvent struct, Cookie uint32
pkg syscall (linux-arm-cgo), type InotifyEvent struct, Len uint32
pkg syscall (linux-arm-cgo), type InotifyEvent struct, Mask uint32
pkg syscall (linux-arm-cgo), type InotifyEvent struct, Name [0]uint8

labels.chat_input_hint=Entrée pour envoyer, Shift+Entrée pour nouvelle ligne
labels.chat_send=Envoyer le message
labels.chat_retry=Réessayer
labels.chat_dismiss=Fermer
labels.chat_copied=Copié!
labels.chat_copy_failed=Échec de la copie

labels.chat_filter=Filtre
labels.chat_filter_search_placeholder=Rechercher...
labels.chat_clear=Effacer
labels.search_file_proxy_enabled=Search File Proxy

Si estás ejecutando tu contenedor detrás de un Proxy de Terminación TLS (load balancer) como Nginx o Traefik, añade la opción `--proxy-headers`, esto le dirá a Uvicorn (a través de la CLI de FastAPI) que confíe en los headers enviados por ese proxy indicando que la aplicación se está ejecutando detrás de HTTPS, etc.

```Dockerfile
CMD ["fastapi", "run", "app/main.py", "--proxy-headers", "--port", "80"]
```

     * Wildcard expressions will not filter workgroup names or server names.
     *
     * <blockquote><pre>
     * winnt> ls c?o*
     * clock.avi                  -rw--      82944 Mon Oct 14 1996 1:38 AM
     * Cookies                    drw--          0 Fri Nov 13 1998 9:42 PM
     * 2 items in 5ms
     * </pre></blockquote>
     *
     * @param wildcard a wildcard expression