```

</div>

Öffnen Sie Ihren Browser unter [http://127.0.0.1:8000](http://127.0.0.1:8000).

Dort können Sie einstellen:

* Die „Item ID“, die im Pfad verwendet wird.
* Das „Token“, das als Query-Parameter verwendet wird.

/// tip | Tipp

Beachten Sie, dass die Query `token` von einer Abhängigkeit verarbeitet wird.

///

                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item active"><la:link href="/admin/joblog">
                                <la:message key="labels.joblog_link_list"/>
                            </la:link></li>
                        </ol>
                    </div>

///

## Returning a custom `Response` { #returning-a-custom-response }

The example above shows all the parts you need, but it's not very useful yet, as you could have just returned the `item` directly, and **FastAPI** would put it in a `JSONResponse` for you, converting it to a `dict`, etc. All that by default.

Now, let's see how you could use that to return a custom response.

    padding: 0.25rem 0;
}

.filter-check-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    margin: 0;
    cursor: pointer;
    font-size: 0.8125rem;
    color: #172b4d;
    transition: background-color 0.1s ease;
}

.filter-check-item:hover {
    background-color: #f4f5f7;
}

.filter-check-item .filter-check {
    margin: 0;

        List<Element> nodeList = new ArrayList<>(resourcesNodes.getLength());
        for (int idx = 0; idx < resourcesNodes.getLength(); idx++) {
            nodeList.add((Element) resourcesNodes.item(idx));
        }
        return nodeList;
    }

    // Item/Field Identifiers
    // ============================================================

    /** Item property key for label field. */
    public static final String ITEM_LABEL = "label";

    /** Item property key for value field. */
    public static final String ITEM_VALUE = "value";

    /** Item property key for name field. */

<img src="/img/tutorial/path-operation-configuration/image01.png">

### Tags com Enums { #tags-with-enums }

Se você tem uma grande aplicação, você pode acabar acumulando **várias tags**, e você gostaria de ter certeza de que você sempre usa a ** mesma tag** para *operações de rota* relacionadas.

Nestes casos, pode fazer sentido armazenar as tags em um `Enum`.

**FastAPI** suporta isso da mesma maneira que com strings simples:

        final Map<String, Object> params = new HashMap<>();
        params.put("items", new int[] { 1, 2, 3, 4, 5 });

        final String script = "def sum = 0\n" + "items.each { item ->\n" + "  if (item % 2 == 0) {\n" + "    sum += item\n" + "  }\n"
                + "}\n" + "return sum";

        assertEquals(6, groovyEngine.evaluate(script, params)); // 2 + 4 = 6
    }

    // ===== Return Value Tests =====

<img src="/img/python-types/image05.png">

Sans types, c'est presque impossible à réaliser.

Remarquez que la variable `item` est l'un des éléments de la liste `items`.

Et pourtant, l'éditeur sait que c'est un `str` et fournit le support approprié.

#### Tuple et Set { #tuple-and-set }

                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item active"><la:link href="/admin/searchlog">
                                <la:message key="labels.searchlog_title"/>
                            </la:link></li>
                        </ol>
                    </div>