* Objetos `datetime`.
    * Objetos `UUID`.
    * Modelos de bases de datos.
    * ...y muchos más.
* Documentación automática e interactiva incluyendo 2 interfaces de usuario alternativas:
    * Swagger UI.
    * ReDoc.

---

Volviendo al ejemplo de código anterior, **FastAPI** va a:

* Validar que existe un `item_id` en el path para requests usando `GET` y `PUT`.

---

## **Typer**, o FastAPI das interfaces de linhas de comando

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

---

## **Typer**, le FastAPI des <abbr title="Command Line Interface">CLI</abbr>

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

* This also allows using automatic **client code generation** in many languages.

### Automatic docs

Interactive API documentation and exploration web user interfaces. As the framework is based on OpenAPI, there are multiple options, 2 included by default.

    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...and many more.
* Automatic interactive API documentation, including 2 alternative user interfaces:
    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.

## ASGI Servers

Let's go a little deeper into the details.

FastAPI uses a standard for building Python web frameworks and servers called <abbr title="Asynchronous Server Gateway Interface">ASGI</abbr>. FastAPI is an ASGI web framework.

## **Typer**，命令行中的 FastAPI

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

如果你正在开发一个在终端中运行的<abbr title="Command Line Interface">命令行</abbr>应用而不是 web API，不妨试下 <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>。

**Typer** 是 FastAPI 的小同胞。它想要成为**命令行中的 FastAPI**。 ⌨️ 🚀

## 依赖

Python 及更高版本

    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...and many more.
* Automatic interactive API documentation, including 2 alternative user interfaces:
    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.

    * Àwọn ohun èlò `datetime`.
    * Àwọn ohun èlò `UUID`.
    * Àwọn awoṣẹ́ ibi ìpamọ́ àkójọf'áyẹ̀wò.
    * ...àti ọ̀pọ̀lọpọ̀ díẹ̀ síi.
* Ìbáṣepọ̀ àkọsílẹ̀ API aládàáṣiṣẹ́, pẹ̀lú ìdàkejì àgbékalẹ̀-àwọn-olùmúlò (i.e user interfaces) méjì:
    * Àgbékalẹ̀-olùmúlò Swagger.
    * ReDoc.

---

Nisinsin yi, tí ó padà sí àpẹẹrẹ ti tẹ́lẹ̀, **FastAPI** yóò:

* Fọwọ́ sí i pé `item_id` wà nínú ọ̀nà ìbéèrè HTTP fún `GET` àti `PUT`.

## 0.7.0

* Add support for `UploadFile` in `File` parameter annotations.
    * This includes a file-like interface.
    * Here's the updated documentation for declaring [`File` parameters with `UploadFile`](https://fastapi.tiangolo.com/tutorial/request-files/#file-parameters-with-uploadfile).