<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>

すると、以下のように `/openapi.json`, `/docs`, `/redoc` のどのURLにアクセスしても、 `404 Not Found` エラーが返ってくるようになります。

```JSON
{
    "detail": "Not Found"
}

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Uvicorn running on <font color="#729FCF"><u style="text-decoration-style:solid">http://127.0.0.1:8000</u></font> <b>(</b>Press CTRL+C to
             quit<b>)</b>
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Started reloader process <b>[</b><font color="#34E2E2"><b>383138</b></font><b>]</b> using WatchFiles

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Uvicorn running on <font color="#729FCF"><u style="text-decoration-style:solid">http://127.0.0.1:8000</u></font> <b>(</b>Press CTRL+C
             to quit<b>)</b>
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Started reloader process <b>[</b><font color="#34E2E2"><b>383138</b></font><b>]</b> using WatchFiles

Вы можете запустить приложение:

<div class="termy">

```console
$ fastapi dev main.py

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

</div>

Затем перейдите в UI `/docs`. Вы увидите, что **FastAPI** использует эти **модели** для **документирования** API, а также для **сериализации** и **валидации** данных.

### Run the App { #run-the-app }

You can run the app:

<div class="termy">

```console
$ fastapi dev main.py

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

</div>

Then go to the `/docs` UI, you will see that **FastAPI** is using these **models** to **document** the API, and it will use them to **serialize** and **validate** the data too.

Sie können die App ausführen:

<div class="termy">

```console
$ fastapi dev main.py

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

</div>

<font color="#4E9A06">INFO</font>:     Will watch for changes in these directories: [&apos;/home/user/code/awesomeapp&apos;]
<font color="#4E9A06">INFO</font>:     Uvicorn running on <b>http://127.0.0.1:8000</b> (Press CTRL+C to quit)
<font color="#4E9A06">INFO</font>:     Started reloader process [<font color="#34E2E2"><b>2265862</b></font>] using <font color="#34E2E2"><b>WatchFiles</b></font>

        «««
        ## Typhinweise und –annotationen { #type-hints-and-annotations }
        »»»

3.2) Do not apply rule 3 to the untranslated part of the heading inside curly brackets, which you shall not translate.


### German instructions, when to use and when not to use hyphens in words (written in first person, which is you)

{* ../../docs_src/security/tutorial001_an_py39.py hl[8] *}

/// tip

Here `tokenUrl="token"` refers to a relative URL `token` that we haven't created yet. As it's a relative URL, it's equivalent to `./token`.

Em seguida, tente com o velho amigo do programador, o preenchimento automático do editor.

Você digita o primeiro parâmetro da função, `first_name`, depois um ponto (`.`) e, em seguida, pressiona `Ctrl + Space` para acionar a conclusão.

Mas, infelizmente, você não obtém nada útil:

<img src="/img/python-types/image01.png">

### Adicionar tipos { #add-types }

Vamos modificar uma única linha da versão anterior.