```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`.

												<la:message key="labels.profile" />
											</la:link>
										</c:if>
										<c:if test="${adminUser == true}">
											<la:link href="/admin" styleClass="dropdown-item">
												<la:message key="labels.administration" />
											</la:link>
										</c:if>
										<la:link href="/logout/" styleClass="dropdown-item">
											<la:message key="labels.logout" />

												<la:message key="labels.profile" />
											</la:link>
										</c:if>
										<c:if test="${adminUser == true}">
											<la:link href="/admin" styleClass="dropdown-item">
												<la:message key="labels.administration" />
											</la:link>
										</c:if>
										<la:link href="/logout/" styleClass="dropdown-item">
											<la:message key="labels.logout" />

## FastAPI App with Tags { #fastapi-app-with-tags }

In many cases, your FastAPI app will be bigger, and you will probably use tags to separate different groups of *path operations*.

For example, you could have a section for **items** and another section for **users**, and they could be separated by tags:

{* ../../docs_src/generate_clients/tutorial002_py39.py hl[21,26,34] *}

### ✅ ⚫️

📂 👆 🖥 <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a>.

👆 🔜 👀 🎻 📨:

```JSON
{"item_id": 5, "q": "somequery"}
```

👆 ⏪ ✍ 🛠️ 👈:

* 📨 🇺🇸🔍 📨 _➡_ `/` &amp; `/items/{item_id}`.
* 👯‍♂️ _➡_ ✊ `GET` 🛠️ (💭 🇺🇸🔍 _👩‍🔬_).
*  _➡_ `/items/{item_id}` ✔️ _➡ 🔢_ `item_id` 👈 🔜 `int`.

</details>

### בדקו אותה

פתחו את הדפדפן שלכם בכתובת <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a>.

אתם תראו תגובת JSON:

```JSON
{"item_id": 5, "q": "somequery"}
```

כבר יצרתם API ש:

-   מקבל בקשות HTTP בנתיבים `/` ו - <code dir="ltr">/items/{item_id}</code>.
-   שני ה _נתיבים_ מקבלים _בקשות_ `GET` (ידועות גם כ*מתודות* HTTP).

                                                <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>

        });
        return asJson(new ApiBulkResponse().items(Arrays.stream(response.getItems()).map(item -> {
            final Map<String, Object> itemMap = new HashMap<>();
            itemMap.put("result", item.status().name());
            if (item.isFailed()) {
                itemMap.put("message", item.getFailureMessage());
            } else {
                itemMap.put("id", item.getId());
            }
            return itemMap;

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"
}
```