* **CORS** (_Cross Origin Resource Sharing_ - Compartilhamento de Recursos Entre Origens).
* _Worker_ **Celery** que pode importar e usar modelos e códigos do resto do _backend_ seletivamente.

* **CORS** (partage des ressources entre origines multiples, ou *Cross Origin Resource Sharing*).
* *Worker* **Celery** pouvant importer et utiliser les modèles et le code du reste du backend.

import pytest
from dirty_equals import IsDict
from fastapi.testclient import TestClient


@pytest.fixture(name="client")
def get_client():
    from docs_src.bigger_applications.app_an.main import app

    client = TestClient(app)
    return client


def test_users_token_jessica(client: TestClient):
    response = client.get("/users?token=jessica")
    assert response.status_code == 200

import pytest
from dirty_equals import IsDict
from fastapi.testclient import TestClient

from ...utils import needs_py39


@pytest.fixture(name="client")
def get_client():
    from docs_src.bigger_applications.app_an_py39.main import app

    client = TestClient(app)
    return client


@needs_py39
def test_users_token_jessica(client: TestClient):
    response = client.get("/users?token=jessica")

    assert not override3 or "x-level3" in response.headers


@pytest.mark.parametrize("override1", [True, False])
@pytest.mark.parametrize("override2", [True, False])
@pytest.mark.parametrize("override3", [True, False])
@pytest.mark.parametrize("override4", [True, False])
@pytest.mark.parametrize("override5", [True, False])
def test_paths_level5(override1, override2, override3, override4, override5):

* Wiele dodatkowych funkcji (dzięki Starlette) takie jak:
    * **WebSockety**
    * **GraphQL**
    * bardzo proste testy bazujące na HTTPX oraz `pytest`
    * **CORS**
    * **Sesje cookie**
    * ...i więcej.

## Wydajność

* Множество дополнительных функций (благодаря Starlette), таких как:
    * **Веб-сокеты**
    * очень простые тесты на основе HTTPX и `pytest`
    * **CORS**
    * **Cookie сеансы(сессии)**
    * ...и многое другое.

## Производительность

* E altre funzionalità (grazie a Starlette) come:
    * **WebSockets**
    * **GraphQL**
    * test molto facili basati su `requests` e `pytest`
    * **CORS**
    * **Cookie Sessions**
    * ...e altro ancora.

## Prestazioni

* 安全性和身份验证，包括通过 **JWT 令牌**和 **HTTP 基本身份认证**来支持 **OAuth2**。
* 更进阶（但同样简单）的技巧来声明 **多层嵌套 JSON 模型** （借助 Pydantic）。
* 许多额外功能（归功于 Starlette）比如：
    * **WebSockets**
    * **GraphQL**
    * 基于 HTTPX 和 `pytest` 的极其简单的测试
    * **CORS**
    * **Cookie Sessions**
    * ......以及更多

## 性能

    client = TestClient(app)
    with pytest.raises(WebSocketDisconnect):
        with client.websocket_connect("/items/foo/ws"):
            pytest.fail(
                "did not raise WebSocketDisconnect on __enter__"
            )  # pragma: no cover


@needs_py39
def test_websocket_invalid_data(app: FastAPI):
    client = TestClient(app)
    with pytest.raises(WebSocketDisconnect):