* `/` yoluna gelen istekler

/// info | `@decorator` Bilgisi

Python'da `@something` sözdizimi "<abbr title="Decorator">dekoratör</abbr>" olarak adlandırılır.

Dekoratörler, dekoratif bir şapka gibi (sanırım terim buradan geliyor) fonksiyonların üzerlerine yerleştirilirler.

Bir "dekoratör" hemen altında bulunan fonksiyonu alır ve o fonksiyon ile bazı işlemler gerçekleştirir.

Pero también puedes declarar el `Response` que quieres usar (por ejemplo, cualquier subclase de `Response`), en el *path operation decorator* usando el parámetro `response_class`.

Los contenidos que devuelvas desde tu *path operation function* se colocarán dentro de esa `Response`.

/// tip | Consejo

Puedes sobreescribir una dependencia utilizada en cualquier lugar de tu aplicación **FastAPI**.

La dependencia original podría ser utilizada en una *path operation function*, un *path operation decorator* (cuando no usas el valor de retorno), una llamada a `.include_router()`, etc.

FastAPI todavía podrá sobrescribirla.

///

/// tip

You can set a dependency override for a dependency used anywhere in your **FastAPI** application.

The original dependency could be used in a *path operation function*, a *path operation decorator* (when you don't use the return value), a `.include_router()` call, etc.

FastAPI will still be able to override it.

///

///

The only new thing is the `callbacks=invoices_callback_router.routes` as an argument to the *path operation decorator*. We'll see what that is next.

## Documenting the callback { #documenting-the-callback }

The actual callback code will depend heavily on your own API app.

And it will probably vary a lot from one app to the next.

 * service. Subclasses should override one or more methods to modify the behavior of the backing
 * executor service as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations

#### Визначте декоратор операції шляху (path operation decorator)

{* ../../docs_src/first_steps/tutorial001.py hl[6] *}
Декоратор `@app.get("/")` вказує **FastAPI**, що функція нижче, відповідає за обробку запитів, які надходять до неї:

* шлях `/`
* використовуючи <abbr title="an HTTP GET method"><code>get</code> операцію</abbr>

/// info | `@decorator` Додаткова інформація

 * override one or more methods to modify the behavior of the backing multimap as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations

/// info | `@decorator` Info

Diese `@something`-Syntax wird in Python „Dekorator“ genannt.

Sie platzieren ihn über einer Funktion. Wie ein hübscher, dekorativer Hut (daher kommt wohl der Begriff).

Ein „Dekorator“ nimmt die darunter stehende Funktion und macht etwas damit.

{* ../../docs_src/first_steps/tutorial001_py39.py hl[6] *}

`@app.get("/")` сообщает **FastAPI**, что функция прямо под ним отвечает за обработку запросов, поступающих:

* по пути `/`
* с использованием <abbr title="метод HTTP GET"><code>get</code> операции</abbr>

/// info | Информация о `@decorator`