</p>
<p align="center">
    FastAPI framework, alto desempeño, fácil de aprender, rápido de programar, listo para producción
</p>
<p align="center">
<a href="https://github.com/tiangolo/fastapi/actions?query=workflow%3ATest" target="_blank">
    <img src="https://github.com/tiangolo/fastapi/workflows/Test/badge.svg" alt="Test">

    * Large refactor, improvement, and simplification of param extraction from *path operations*.
    * Fix/add support for list *query parameters* with list defaults. New documentation: [Query parameter list / multiple values with defaults](https://fastapi.tiangolo.com/tutorial/query-params-str-validations/#query-parameter-list-multiple-values-with-defaults).

But by default, it all **"just works"**.

### Validation

* Validation for most (or all?) Python **data types**, including:
    * JSON objects (`dict`).
    * JSON array (`list`) defining item types.
    * String (`str`) fields, defining min and max lengths.
    * Numbers (`int`, `float`) with min and max values, etc.

* Validation for more exotic types, like:
    * URL.
    * Email.

```

!!! tip
    The app above is a minimal and simple example to demonstrate how to handle and broadcast messages to several WebSocket connections.

    But keep in mind that, as everything is handled in memory, in a single list, it will only work while the process is running, and will only work with a single process.

Now use the parameter `callbacks` in *your API's path operation decorator* to pass the attribute `.routes` (that's actually just a `list` of routes/*path operations*) from that callback router:

```Python hl_lines="35"
{!../../../docs_src/openapi_callbacks/tutorial001.py!}
```

!!! tip

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* <abbr title="também conhecido como: serialization, parsing, marshalling">Conversão</abbr> de dados de saída de tipos e dados Python para dados de rede (como JSON):
    * Converte tipos Python (`str`, `int`, `float`, `bool`, `list` etc).
    * Objetos `datetime`.
    * Objetos `UUID`.
    * Modelos de Banco de Dados.
    * ...e muito mais.
* Documentação interativa automática da API, incluindo 2 alternativas de interface de usuário:

* Daxil olan məlumatları <abbr title="Çevrilmə: serialization, parsing, marshalling olaraq da bilinir">çevirmək</abbr> üçün aşağıdakı məlumat növlərindən istifadə edilir (JSON olaraq):
    * Python tiplərinin (`str`, `int`, `float`, `bool`, `list`, və s) çevrilməsi.
    * `datetime` obyektləri.
    * `UUID` obyektləri.
    * Verilənlər bazası modelləri.
    * və daha çoxu...

    * Chuyển đổi kiểu dữ liệu Python (`str`, `int`, `float`, `bool`, `list`,...).
    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...và nhiều hơn thế.
* Tự động tạo tài liệu tương tác API, bao gồm 2 giao diện người dùng:
    * Swagger UI.
    * ReDoc.

    * Yí irúfẹ́ àmì ìtọ́kasí padà (`str`, `int`, `float`, `bool`, `list`, abbl i.e. àti bèbè ló).
    * Àwọn ohun èlò `datetime`.
    * Àwọn ohun èlò `UUID`.
    * Àwọn awoṣẹ́ ibi ìpamọ́ àkójọf'áyẹ̀wò.
    * ...àti ọ̀pọ̀lọpọ̀ díẹ̀ síi.