```JSON
{
  "item": "The Foo Wrestlers"
}
```

But if the client requests `http://example.com/items/bar` (a non-existent `item_id` `"bar"`), that client will receive an HTTP status code of 404 (the "not found" error), and a JSON response of:

```JSON
{
  "detail": "Item not found"
}
```

/// tip

When raising an `HTTPException`, you can pass any value that can be converted to JSON as the parameter `detail`, not only `str`.

                                                <c:forEach var="item" varStatus="s"
                                                           items="${availableArtifactItems}">
                                                    <la:option
                                                            value="${f:h(item.id)}">${f:h(item.name)}-${f:h(item.version)}</la:option>
                                                </c:forEach>

start,.carousel-item-prev:not(.carousel-item-end){transform:translateX(-100%)}.carousel-fade .carousel-item{opacity:0;transition-property:opacity;transform:none}.carousel-fade .carousel-item-next.carousel-item-start,.carousel-fade .carousel-item-prev.carousel-item-end,.carousel-fade .carousel-item.active{z-index:1;opacity:1}.carousel-fade .active.carousel-item-end,.carousel-fade .active.carousel-item-start{z-index:0;opacity:0;transition:opacity 0s .6s}@media (prefers-reduced-motion:reduce){.carousel-fade...

        showFieldLoggingTitle();
        for (DiskFileItem item : items) {
            if (item.isFormField()) {
                showFormFieldParameter(item);
                addTextParameter(request, item);
            } else {
                showFileFieldParameter(item);
                final String itemName = item.getName();

        for (Map<String, String> item : dicts) {
            assertTrue(item.containsKey("id"));
            assertTrue(item.containsKey("type"));
            if (getDictType().equals(item.get("type"))) {
                dictId = item.get("id");
                return;
            }
        }

        fail();
    }

    @Override

        }
        RenderDataUtil.register(data, "webConfigItems", itemList);
    }

    /**
     * Creates a map item for UI rendering with label and value.
     *
     * @param label the display label for the item
     * @param value the value for the item
     * @return map containing the label and value
     */
    protected Map<String, String> createItem(final String label, final String value) {

En este ejemplo, cuando el cliente solicita un ítem por un ID que no existe, lanza una excepción con un código de estado de `404`:

{* ../../docs_src/handling_errors/tutorial001.py hl[11] *}

### El response resultante

Si el cliente solicita `http://example.com/items/foo` (un `item_id` `"foo"`), ese cliente recibirá un código de estado HTTP de 200, y un response JSON de:

```JSON
{
  "item": "The Foo Wrestlers"
}
```

Neste exemplo, quando o cliente pede, na requisição, por um item cujo ID não existe, a exceção com o status code `404` é lançada:

{* ../../docs_src/handling_errors/tutorial001.py hl[11] *}

### A response resultante


Se o cliente faz uma requisição para `http://example.com/items/foo` (um `item_id` `"foo"`), esse cliente receberá um HTTP status code 200, e uma resposta JSON:


```
{
  "item": "The Foo Wrestlers"
}
```

                    "message": {
                        "title": "Message",
                        "type": "string"
                    }
                }
            },
            "Item": {
                "title": "Item",
                "required": [
                    "id",
                    "value"
                ],
                "type": "object",
                "properties": {

									<c:forEach var="item" varStatus="s" items="${popularWords}">
										<c:if test="${s.index < 3}">
											<la:link
												href="/search?q=${f:u(item)}${fe:facetQuery()}${fe:geoQuery()}">${f:h(item)}</la:link>
										</c:if>
										<c:if test="${3 <= s.index}">
											<la:link styleClass="d-none d-sm-inline-block"