final Settings settings = response.getIndexToSettings().get(analyzerSettingsIndexName);
        final Settings analyzerSettings = settings.getAsSettings("index.analysis.analyzer");
        return analyzerSettings.getAsGroups().keySet();
    }

    /**
     * Get field analyzer mapping.
     * @return Field analyzer mapping
     */

from typing import Annotated

from fastapi import Depends, FastAPI

from . import config

app = FastAPI()


@lru_cache
def get_settings():
    return config.Settings()


@app.get("/info")
async def info(settings: Annotated[config.Settings, Depends(get_settings)]):
    return {
        "app_name": settings.app_name,
        "admin_email": settings.admin_email,
        "items_per_user": settings.items_per_user,

from fastapi.testclient import TestClient

from .config import Settings
from .main import app, get_settings

client = TestClient(app)


def get_settings_override():
    return Settings(admin_email="******@****.***")


app.dependency_overrides[get_settings] = get_settings_override


def test_app():
    response = client.get("/info")
    data = response.json()
    assert data == {
        "app_name": "Awesome API",

from fastapi.testclient import TestClient

from .config import Settings
from .main import app, get_settings

client = TestClient(app)


def get_settings_override():
    return Settings(admin_email="******@****.***")


app.dependency_overrides[get_settings] = get_settings_override


def test_app():
    response = client.get("/info")
    data = response.json()
    assert data == {
        "app_name": "Awesome API",

{* ../../docs_src/settings/app03_an_py310/main.py hl[1,11] *}

Затем при любых последующих вызовах `get_settings()` в зависимостях для следующих запросов, вместо выполнения внутреннего кода `get_settings()` и создания нового объекта `Settings`, будет возвращаться тот же объект, что был возвращен при первом вызове, снова и снова.

#### Технические детали `lru_cache` { #lru-cache-technical-details }

{* ../../docs_src/settings/app03_an_py310/main.py hl[1,11] *}

Dann wird bei allen nachfolgenden Aufrufen von `get_settings()`, in den Abhängigkeiten für darauffolgende Requests, dasselbe Objekt zurückgegeben, das beim ersten Aufruf zurückgegeben wurde, anstatt den Code von `get_settings()` erneut auszuführen und ein neues `Settings`-Objekt zu erstellen.

#### Technische Details zu `lru_cache` { #lru-cache-technical-details }

{* ../../docs_src/settings/app03_an_py310/main.py hl[1,11] *}

Ensuite, pour tout appel ultérieur de `get_settings()` dans les dépendances pour les requêtes suivantes, au lieu d'exécuter le code interne de `get_settings()` et de créer un nouvel objet `Settings`, il renverra le même objet que celui retourné au premier appel, encore et encore.

import java.io.File;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertNotNull;

/**
 */
class DefaultSettingsBuilderFactoryTest {

    private File getSettings(String name) {
        return new File("src/test/resources/settings/factory/" + name + ".xml").getAbsoluteFile();
    }

    @Test
    void testCompleteWiring() throws Exception {

`@lru_cache` konusunu birazdan ele alacağız.

Şimdilik `get_settings()`'in normal bir fonksiyon olduğunu varsayabilirsiniz.

///

Sonra bunu dependency olarak *path operation function*'dan talep edebilir ve ihtiyaç duyduğumuz her yerde kullanabiliriz.

{* ../../docs_src/settings/app02_an_py310/main.py hl[17,19:21] *}

### Ayarlar ve test { #settings-and-testing }

from functools import lru_cache

from fastapi import Depends, FastAPI

from .config import Settings

app = FastAPI()


@lru_cache
def get_settings():
    return Settings()


@app.get("/info")
async def info(settings: Settings = Depends(get_settings)):
    return {
        "app_name": settings.app_name,
        "admin_email": settings.admin_email,
        "items_per_user": settings.items_per_user,