!!! info
    Keep in mind that dataclasses can't do everything Pydantic models can do.

    So, you might still need to use Pydantic models.

    But if you have a bunch of dataclasses laying around, this is a nice trick to use them to power a web API using FastAPI. 🤓

## Dataclasses in `response_model`

You can also use `dataclasses` in the `response_model` parameter:

```Python hl_lines="1  7-13  19"

Mais il y a encore de nombreuses améliorations et fonctionnalités à venir.

**FastAPI** a un grand avenir devant lui.

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# FastAPI İnsanlar

FastAPI-ın bütün mənşəli insanları qəbul edən heyrətamiz icması var.



## Yaradıcı - İcraçı

Salam! 👋

Bu mənəm:

{% if people %}
<div class="user-list user-list-center">
{% for user in people.maintainers %}

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# FastAPI Topluluğu

FastAPI, her kökenden insanı ağırlayan harika bir topluluğa sahip.

## Yazan - Geliştiren

Merhaba! 👋

İşte bu benim:

{% if people %}
<div class="user-list user-list-center">
{% for user in people.maintainers %}

## Data validation

But if you go to the browser at <a href="http://127.0.0.1:8000/items/foo" class="external-link" target="_blank">http://127.0.0.1:8000/items/foo</a>, you will see a nice HTTP error of:

```JSON
{
  "detail": [
    {
      "type": "int_parsing",
      "loc": [
        "path",
        "item_id"
      ],

Just keep in mind that when you read "server" in general, it could refer to one of those two things.

When referring to the remote machine, it's common to call it **server**, but also **machine**, **VM** (virtual machine), **node**. Those all refer to some type of remote machine, normally running Linux, where you run programs.

## Install the Server Program

=== "Python"

    ```Python
    {!> ../../../docs_src/generate_clients/tutorial004.py!}
    ```

=== "Node.js"

    ```Javascript
    {!> ../../../docs_src/generate_clients/tutorial004.js!}
    ```

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# Tính năng

## Tính năng của FastAPI

**FastAPI** cho bạn những tính năng sau:

### Dựa trên những tiêu chuẩn mở

* Potwierdzi, że `item_id` jest typu `int` dla żądań `GET` i `PUT`.
    * Jeżeli nie jest, odbiorca zobaczy przydatną, przejrzystą wiadomość z błędem.
* Sprawdzi czy w ścieżce jest opcjonalny parametr zapytania `q` (np. `http://127.0.0.1:8000/items/foo?q=somequery`) dla żądania `GET`.
    * Jako że parametr `q` jest zadeklarowany jako `= None`, jest on opcjonalny.
    * Gdyby tego `None` nie było, parametr ten byłby wymagany (tak jak treść żądania w żądaniu `PUT`).

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<p align="center">
  <a href="https://fastapi.tiangolo.com"><img src="https://fastapi.tiangolo.com/img/logo-margin/logo-teal.png" alt="FastAPI"></a>
</p>
<p align="center">
    Готовый к внедрению высокопроизводительный фреймворк, простой в изучении и разработке.
</p>
<p align="center">