{* ../../docs_src/websockets/tutorial001.py hl[48:52] *}

Sie können Binär-, Text- und JSON-Daten empfangen und senden.

## Es ausprobieren

Wenn Ihre Datei `main.py` heißt, führen Sie Ihre Anwendung so aus:

<div class="termy">

```console
$ uvicorn main:app --reload

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

INFO:     Waiting for application startup.
INFO:     Application startup complete.
```

</div>

<details markdown="1">
<summary>About the command <code>fastapi dev main.py</code>...</summary>

The command `fastapi dev` reads your `main.py` file, detects the **FastAPI** app in it, and starts a server using <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a>.

      println(response.body.string())
    }
  }

  companion object {
    val MEDIA_TYPE_MARKDOWN = "text/x-markdown; charset=utf-8".toMediaType()
  }
}

fun main() {
  PostString().run()

 [conscrypt]: https://github.com/google/conscrypt/
 [get_example]: https://raw.github.com/square/okhttp/master/samples/guide/src/main/java/okhttp3/guide/GetExample.java
 [kotlin]: https://kotlinlang.org/
 [okhttp3_pro]: https://raw.githubusercontent.com/square/okhttp/master/okhttp/src/main/resources/META-INF/proguard/okhttp3.pro
 [okhttp]: https://square.github.io/okhttp/
 [okhttp_312x]: https://github.com/square/okhttp/tree/okhttp_3.12.x

Nehmen wir an, die Dateistruktur Ihres Projekts sieht folgendermaßen aus:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
```

Erstellen Sie jetzt ein Verzeichnis zum Speichern dieser statischen Dateien.

Ihre neue Dateistruktur könnte so aussehen:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
└── static/
```

### Die Dateien herunterladen

   <span style="background-color:#007166"><font color="#D3D7CF"> module </font></span>  🐍 main.py

     <span style="background-color:#007166"><font color="#D3D7CF"> code </font></span>  Importing the FastAPI app object from the module with the
             following code:

Let's say your project file structure looks like this:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
```

Now create a directory to store those static files.

Your new file structure could look like this:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
└── static/
```

### Download the files { #download-the-files }

 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * Provides the API for the Maven build tool ({@code mvn}).
 *
 * <p>This package contains interfaces and classes specific to the main Maven build
 * tool, which is responsible for project build lifecycle execution and dependency management.</p>
 *
 * <p>Key features include:</p>
 * <ul>
 *   <li>Build lifecycle execution control</li>

INFO:     Application startup complete.
```

</div>

<details markdown="1">
<summary>🔃 📋 <code>uvicorn main:app --reload</code>...</summary>

📋 `uvicorn main:app` 🔗:

* `main`: 📁 `main.py` (🐍 "🕹").
* `app`: 🎚 ✍ 🔘 `main.py` ⏮️ ⏸ `app = FastAPI()`.
* `--reload`: ⚒ 💽 ⏏ ⏮️ 📟 🔀. 🕴 👉 🛠️.

</details>

### ✅ ⚫️

```

</div>

<details markdown="1">
<summary>על הפקודה <code>uvicorn main:app --reload</code>...</summary>

הפקודה `uvicorn main:app` מתייחסת ל:

-   `main`: הקובץ `main.py` (מודול פייתון).
-   `app`: האובייקט שנוצר בתוך `main.py` עם השורה <code dir="ltr">app = FastAPI()</code>.
-   <code dir="ltr">--reload</code>: גרמו לשרת להתאתחל לאחר שינויים בקוד. עשו זאת רק בסביבת פיתוח.

</details>

### בדקו אותה