* **Валидации данных**: исходя из каждого запроса:
    * Генерации **автоматических ошибок**, возвращаемых клиенту, когда данные не являются корректными.
* **Документирования** API с использованием OpenAPI:
    * который затем используется пользовательскими интерфейсами автоматической интерактивной документации.

```Python hl_lines="4  10"
{!> ../../docs_src/body_nested_models/tutorial005.py!}
```

////

Es wird getestet, ob der String eine gültige URL ist, und als solche wird er in JSON Schema / OpenAPI dokumentiert.

## Attribute mit Listen von Kindmodellen

Sie können Pydantic-Modelle auch als Typen innerhalb von `list`, `set`, usw. verwenden:

//// tab | Python 3.10+

```Python hl_lines="18"

    WeakKeyDictionary()
)


def is_body_allowed_for_status_code(status_code: Union[int, str, None]) -> bool:
    if status_code is None:
        return True
    # Ref: https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#patterned-fields-1
    if status_code in {
        "default",
        "1XX",
        "2XX",
        "3XX",
        "4XX",
        "5XX",
    }:
        return True

## Creating a hotfix branch

Customers in MinIO are allowed LTS on any release they choose to standardize. Production setups seldom change and require maintenance. Hotfix branches are such maintenance branches that allow customers to operate a production cluster without drastic changes to their deployment.

## Backporting a fix

Developer is advised to clone the MinIO source and checkout the MinIO release tag customer is currently on.

```

**FastAPI** will do the automatic conversion from the request, so that the parameter `item` receives its specific content and the same for `user`.

It will perform the validation of the compound data, and will document it like that for the OpenAPI schema and automatic docs.

## Singular values in body

The same way there is a `Query` and `Path` to define extra data for query and path parameters, **FastAPI** provides an equivalent `Body`.

Es wird die Validierung dieser zusammengesetzten Daten übernehmen, und sie im OpenAPI-Schema und der automatischen Dokumentation dokumentieren.

## Einzelne Werte im Body

///

/// note | "Detalhes técnicos"

Você também pode usar `from starlette.testclient import TestClient`.

**FastAPI** fornece o mesmo `starlette.testclient` que `fastapi.testclient` apenas como uma conveniência para você, o desenvolvedor. Mas ele vem diretamente da Starlette.

///

/// tip | "Dica"

label3:
	BLTZ	R1, 1(PC)
	BLTZ	R1, label3	// BLTZ R1, 85

//
// floating point conditional branch
//
//	LBRA rel
label4:
	BFPT	1(PC)
	BFPT	label4	// BFPT 87


	//
	// floating point operate
	//
	//	LFCONV freg ',' freg
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	ABSD	F1, F2

	//	LFADD freg ',' freg
	//	{
	//		outcode(int($1), &$2, 0, &$4);
	//	}
	ADDD	F1, F2

你可以把你的 XML 内容放到一个字符串中，放到一个 `Response` 中，然后返回。

```Python hl_lines="1  18"
{!../../docs_src/response_directly/tutorial002.py!}
```

## 说明

当你直接返回 `Response` 时，它的数据既没有校验，又不会进行转换（序列化），也不会自动生成文档。

但是你仍可以参考 [OpenApI 中的额外响应](additional-responses.md){.internal-link target=_blank} 给响应编写文档。

* **Robust**: Get production-ready code. With automatic interactive documentation.
* **Standards-based**: Based on (and fully compatible with) the open standards for APIs: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (previously known as Swagger) and <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.