```Python hl_lines="1"
async def get_burgers(number: int):
    # Opérations asynchrones pour créer les burgers
    return burgers
```

...et non `def` :

```Python hl_lines="2"
# Ceci n'est pas asynchrone
def get_sequential_burgers(number: int):
    # Opérations asynchrones pour créer les burgers
    return burgers
```

Nehmen wir obigen Satz in den folgenden Abschnitten Schritt für Schritt unter die Lupe:

* **Asynchroner Code**
* **`async` und `await`**
* **Coroutinen**

## Asynchroner Code

///

### <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a>

Starlette est un framework/toolkit léger <abbr title="Le nouveau standard pour construire des applications web asynchrones en Python">ASGI</abbr>, qui est idéal pour construire des services asyncio performants.

Il est très simple et intuitif. Il est conçu pour être facilement extensible et avoir des composants modulaires.

Il offre :

Starlette ist ein leichtgewichtiges <abbr title="Der neue Standard für die Erstellung asynchroner Python-Webanwendungen">ASGI</abbr>-Framework/Toolkit, welches sich ideal für die Erstellung hochperformanter asynchroner Dienste eignet.

Es ist sehr einfach und intuitiv. Es ist so konzipiert, dass es leicht erweiterbar ist und über modulare Komponenten verfügt.

Es bietet:

## Technical Details

Modern versions of Python have support for **"asynchronous code"** using something called **"coroutines"**, with **`async` and `await`** syntax.

Let's see that phrase by parts in the sections below:

* **Asynchronous Code**
* **`async` and `await`**
* **Coroutines**

## Asynchronous Code

```Python hl_lines="2  7  9"
{!../../docs_src/custom_response/tutorial006c.py!}
```

### `StreamingResponse`

Nimmt einen asynchronen Generator oder einen normalen Generator/Iterator und streamt den Responsebody.

```Python hl_lines="2  14"
{!../../docs_src/custom_response/tutorial007.py!}
```

Articles: English: - author: Balthazar Rouberol author_link: https://balthazar-rouberol.com link: https://blog.balthazar-rouberol.com/how-to-profile-a-fastapi-asynchronous-request title: How to profile a FastAPI asynchronous request - author: Stephen Siegert - Neon link: https://neon.tech/blog/deploy-a-serverless-fastapi-app-with-neon-postgres-and-aws-app-runner-at-any-scale title: Deploy a Serverless FastAPI App with Neon Postgres and AWS App Runner at any scale - author: Kurtis Pykes - NVIDIA...

## Installation

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>

dökümantasyon için Pydantic gibi bir üçüncü parti kütüphane kullanmıyor, kendi içerisinde bunlara sahip. Yani bu veri tipi tanımlarını tekrar kullanmak pek de kolay değil.

Biraz daha detaylı ayarlamalara gerek duyuyor. Ayrıca <abbr title="ASGI (Asynchronous Server Gateway Interface): Asenkron Sunucu Ağ Geçidi Arabirimi, asenkron Python web uygulamaları geliştirmek için yeni standart.">ASGI</abbr> yerine <abbr title="WSGI (Web Server Gateway Interface): Web Sunucusu Ağ Geçidi Arabirimi, Pythonda senkron...

import com.google.errorprone.annotations.DoNotMock;
import java.util.concurrent.Executor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * An object with an operational state, plus asynchronous {@link #startAsync()} and {@link
 * #stopAsync()} lifecycle methods to transition between states. Example services include
 * webservers, RPC servers and timers.
 *
 * <p>The normal lifecycle of a service is:
 *