# Dataclass Kullanımı { #using-dataclasses }

FastAPI, **Pydantic** üzerine inşa edilmiştir ve request/response tanımlamak için Pydantic model'lerini nasıl kullanacağınızı gösteriyordum.

Ancak FastAPI, [`dataclasses`](https://docs.python.org/3/library/dataclasses.html) kullanmayı da aynı şekilde destekler:

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial006_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body_nested_models.{request.param}")

    client = TestClient(mod.app)
    return client


def test_put_all(client: TestClient):
    response = client.put(
        "/items/123",

# Tarefas em segundo plano { #background-tasks }

Você pode definir tarefas em segundo plano para serem executadas *após* retornar uma resposta.

Isso é útil para operações que precisam acontecer após uma request, mas que o cliente não precisa realmente esperar a operação terminar antes de receber a resposta.

Isso inclui, por exemplo:

* Notificações por e-mail enviadas após realizar uma ação:

import jcifs.internal.smb2.ServerMessageBlock2;
import jcifs.internal.smb2.ServerMessageBlock2Request;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Tree Connect request message.
 *
 * This command is used to connect to a shared resource
 * on the server, such as a file share or printer.
 *
 * @author mbechler
 */

Sie senden ihm ein Token und er gibt einen authentifizierten Benutzer zurück.

Dieser Anbieter berechnet Ihnen möglicherweise Gebühren pro <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr>, und der Aufruf könnte etwas länger dauern, als wenn Sie einen vordefinierten <abbr title="Platzhalter, vorgetäuscht, zum Schein">Mock</abbr>-Benutzer für Tests hätten.

{* ../../docs_src/header_param_models/tutorial001_an_py310.py hl[9:14,18] *}

**FastAPI** wird die Daten für **jedes Feld** aus den **Headern** des <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr> extrahieren und Ihnen das von Ihnen definierte Pydantic-Modell geben.

## Die Dokumentation testen { #check-the-docs }

import jcifs.Configuration;
import jcifs.internal.CommonServerMessageBlockRequest;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.util.SMBUtil;

/**
 * Base class for SMB1 NT Transaction request messages.
 *
 * NT Transactions are an extended form of the basic transaction protocol
 * that provides additional functionality for Windows NT-specific operations

 *
 * This leads to a second side effect in that any @Inject request for just ModelProcessor in
 * the same injector is immediately matched to this explicit binding, which means extensions
 * cannot override this binding. This is because the lookup is always short-circuited in this
 * specific situation (plain @Inject request, and plain explicit binding for the same type.)
 *

@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial004_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body_nested_models.{request.param}")

    client = TestClient(mod.app)
    return client


def test_put_all(client: TestClient):
    response = client.put(
        "/items/123",

flagged as a TODO by the automated tooling. That is true even for proposals that add API.

Use the following forms in your markdown:

	[http.Request]                     # symbol documentation; auto-linked as in Go doc strings
	[Request]                          # short form, for symbols in the package being documented
	[net/http]                         # package link
	[#12345](/issue/12345)             # GitHub issues