if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

      System.out.println(response.body().string());
    }
  }

  public static void main(String... args) throws Exception {
    new PostFile().run();
  }

        if (!response.isSuccessful) throw IOException("Unexpected code $response")

        println(response.request.url)
      }
    } finally {
      server.shutdown()
    }
  }
}

fun main() {
  DevServer().run()

  @JsonClass(generateAdapter = true)
  data class Gist(
    var files: Map<String, GistFile>?,
  )

  @JsonClass(generateAdapter = true)
  data class GistFile(
    var content: String?,
  )
}

fun main() {
  ParseResponseWithMoshi().run()

You could **deploy a server** yourself using a combination of tools, you could use a **cloud service** that does part of the work for you, or other possible options.

I will show you some of the main concepts you should probably keep in mind when deploying a **FastAPI** application (although most of it applies to any other type of web application).

* [fess_label_en.properties](https://github.com/codelibs/fess/blob/master/src/main/resources/fess_label_en.properties)
* [fess_message_en.properties](https://github.com/codelibs/fess/blob/master/src/main/resources/fess_message_en.properties)

     */
    boolean isMailSendMock();

    /**
     * Get the value for the key 'mail.smtp.server.main.host.and.port'. <br>
     * The value is, e.g. localhost:25 <br>
     * comment: SMTP server settings for main: host:port
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getMailSmtpServerMainHostAndPort();

 * href="https://github.com/google/guava/wiki/ListenableFutureExplained">{@code
 * ListenableFuture}</a>.
 *
 * <p>This class is GWT-compatible.
 *
 * <h3>Purpose</h3>
 *
 * <p>The main purpose of {@code ListenableFuture} is to help you chain together a graph of
 * asynchronous operations. You can chain them together manually with calls to methods like {@link

EXPOSE 80

COPY ./app /app

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80"]
```

## Créer le code **FastAPI**.

* Créer un répertoire `app` et y entrer.
* Créez un fichier `main.py` avec :

```Python
from typing import Optional

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}

```

</div>

それぞれのオプションの意味を見てみましょう：

* `main:app`： `main`は"`main`"という名前のPythonモジュール、つまりファイル`main.py`を意味します。そして `app` は **FastAPI** アプリケーションの変数名です。
    * main:app`はPythonの`import`文と同じようなものだと想像できます：

        ```Python
        from main import app
        ```

    * つまり、`main:app`のコロンは、`from main import app`のPythonの`import`の部分と同じになります。

* `--workers`： 使用するワーカー・プロセスの数で、それぞれがUvicornのワーカーを実行します。

```

</div>

<details markdown="1">
<summary>O komendzie <code>uvicorn main:app --reload</code>...</summary>
Komenda `uvicorn main:app` odnosi się do:

* `main`: plik `main.py` ("moduł" w Pythonie).
* `app`: obiekt stworzony w `main.py` w lini `app = FastAPI()`.
* `--reload`: spraw by serwer resetował się po każdej zmianie w kodzie. Używaj tego tylko w środowisku deweloperskim.

</details>

### Wypróbuj