}

            Parent parent = project.getModel().getDelegate().getParent();

            if (parent != null) {
                // Parent is added as an edge, but must not cause a cycle - so we remove any other edges it has
                // in conflict
                addEdge(
                        projectMap,
                        vertexMap,
                        null,
                        projectVertex,

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

		}
		mg.SetCache(metricsCache)
		if mg.IsBucketMetricsGroup() {
			bucketMGMap[mg.CollectorPath] = mg
		} else {
			mgMap[mg.CollectorPath] = mg
		}
	}

	// Prepare to register the collectors. Other than `MetricGroup` collectors,
	// we also have standard collectors like `GoCollector`.

	// Create all Non-`MetricGroup` collectors here.
	collectors := map[collectorPath]prometheus.Collector{

# Fehler behandeln { #handling-errors }

Es gibt viele Situationen, in denen Sie einem Client, der Ihre API nutzt, einen Fehler mitteilen müssen.

Dieser Client könnte ein Browser mit einem Frontend sein, ein Code von jemand anderem, ein IoT-Gerät usw.

Sie könnten dem Client mitteilen müssen, dass:

* Der Client nicht genügend Berechtigungen für diese Operation hat.
* Der Client keinen Zugriff auf diese Ressource hat.

        end
        handler -->> client: HTTP error response
    end

    operation ->> client: Return response to client
    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception

 * </p>
 * <p>
 * If the source object is an instance of {@link Date}, {@link Calendar}, or {@link Time},
 * the conversion uses their millisecond value to create the target object.
 * For other types, the conversion uses the string representation of the source object.
 * </p>
 * <p>
 * If no pattern is specified, the pattern used for conversion depends on the locale as follows:
 * </p>
 * <table border="1">

$ export MY_NAME="Wade Wilson"

// Then you could use it with other programs, like
$ echo "Hello $MY_NAME"

Hello Wade Wilson
```

</div>

////

//// tab | Windows PowerShell

<div class="termy">


```console
// Create an env var MY_NAME
$ $Env:MY_NAME = "Wade Wilson"

// Use it with other programs, like
$ echo "Hello $Env:MY_NAME"

Hello Wade Wilson
```

# Manipulação de erros { #handling-errors }

Há diversas situações em que você precisa notificar um erro a um cliente que está utilizando a sua API.

Esse cliente pode ser um browser com um frontend, o código de outra pessoa, um dispositivo IoT, etc.

Pode ser que você precise comunicar ao cliente que:

* O cliente não tem direitos para realizar aquela operação.
* O cliente não tem acesso aquele recurso.
* O item que o cliente está tentando acessar não existe.

            return redirect(LoginAction.class);
        }
    }

    /**
     * SSO metadata endpoint.
     *
     * This method handles requests for SSO metadata, typically used by SAML or
     * other SSO protocols that require metadata exchange. The actual metadata
     * content is generated by the configured SSO authenticator.
     *
     * @return ActionResponse containing the SSO metadata or error page
     */

 * Provides RESTful API endpoints for managing file crawling configuration settings in the Fess search engine.
 * File configurations define settings for crawling file systems, FTP servers, and other file-based data sources.
 *
 */
public class ApiAdminFileconfigAction extends FessApiAdminAction {

    private static final Logger logger = LogManager.getLogger(ApiAdminFileconfigAction.class);