│   ├── main.py
│   └── test_main.py
```

Let's say that now the file `main.py` with your **FastAPI** app has some other **path operations**.

It has a `GET` operation that could return an error.

It has a `POST` operation that could return several errors.

Both *path operations* require an `X-Token` header.

//// tab | Python 3.10+

```Python
{!> ../../docs_src/app_testing/app_b_an_py310/main.py!}
```

You can use the Select API to query objects with following features:

- Objects must be in CSV, JSON, or Parquet(*) format.
- UTF-8 is the only encoding type the Select API supports.

		if err != nil {
			log.Println(fmt.Errorf("Failed to parse STS Endpoint: %s", err))
			http.Error(w, err.Error(), http.StatusBadRequest)
			return
		}

		clnt, err := minio.New(u.Host, opts)
		if err != nil {
			log.Println(fmt.Errorf("Error while initializing Minio client, %s", err))
			http.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
		buckets, err := clnt.ListBuckets(r.Context())

				if localDrives[index] == nil {
					return errDiskNotFound
				}
				localDrives[index].DeleteVol(ctx, bucket, false)
				return nil
			}, index)
		}

		g.Wait()
	}

	// Create the lost volume only if its not marked for delete
	if !opts.Remove {
		// Initialize sync waitgroup.
		g = errgroup.WithNErrs(len(localDrives))

		// Make a volume entry on all underlying storage disks.

/**
 * Base class for implementing services that can handle {@link #doStart} and {@link #doStop}
 * requests, responding to them with {@link #notifyStarted()} and {@link #notifyStopped()}
 * callbacks. Its subclasses must manage threads manually; consider {@link
 * AbstractExecutionThreadService} if you need only a single execution thread.
 *
 * @author Jesse Wilson
 * @author Luke Sandberg
 * @since 1.0
 */
@GwtIncompatible

    if (localFutures != null) {
      return "futures=" + localFutures;
    }
    return super.pendingToString();
  }

  /**
   * Must be called at the end of each subclass's constructor. This method performs the "real"
   * initialization; we can't put this in the constructor because, in the case where futures are

            sb.append(LS);

            // If people want to deploy it
            sb.append(LS);
            sb.append(indentation);
            sb.append("Alternatively, if you host your own repository you can deploy the file there: ");
            sb.append(LS);
            sb.append(indentation);
            sb.append("    mvn deploy:deploy-file -DgroupId=");
            sb.append(groupId);

<img src="/img/tutorial/websockets/image05.png">

## Verbindungsabbrüche und mehreren Clients handhaben

Wenn eine WebSocket-Verbindung geschlossen wird, löst `await websocket.receive_text()` eine `WebSocketDisconnect`-Exception aus, die Sie dann wie in folgendem Beispiel abfangen und behandeln können.

//// tab | Python 3.9+

```Python hl_lines="79-81"

---> 100%
```

</div>

...或任何其他 ASGI 服务器。

////

## 运行服务器程序

您可以按照之前教程中的相同方式运行应用程序，但不使用`--reload`选项，例如：

//// tab | Uvicorn

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

////

//// tab | Hypercorn

<div class="termy">

      this.associatedStreamId = associatedStreamId
      this.headerBlock = headerBlock
    }

    override fun alternateService(
      streamId: Int,
      origin: String,
      protocol: ByteString,
      host: String,
      port: Int,
      maxAge: Long,
    ) {
      throw UnsupportedOperationException()
    }
  }

  companion object {