Alle Kassierer erledigen die ganze Arbeit mit einem Kunden nach dem anderen 👨‍💼⏯.

Und man muss lange in der Schlange warten 🕙 sonst kommt man nicht an die Reihe.

Sie würden Ihren Schwarm 😍 wahrscheinlich nicht mitnehmen wollen, um Besorgungen bei der Bank zu erledigen 🏦.

### Hamburger Schlussfolgerung

You can define files and form fields at the same time using `File` and `Form`.

/// info

To receive uploaded files and/or form data, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

* Validación de datos
* Documentación automática

## Valores por defecto

Como los parámetros de query no son una parte fija de un path, pueden ser opcionales y pueden tener valores por defecto.

En el ejemplo anterior, tienen valores por defecto de `skip=0` y `limit=10`.

Entonces, ir a la URL:

```
http://127.0.0.1:8000/items/
```

sería lo mismo que ir a:

  count: 769
  avatarUrl: https://avatars.githubusercontent.com/in/15368?v=4
  url: https://github.com/apps/github-actions
- login: Kludex
  count: 654
  avatarUrl: https://avatars.githubusercontent.com/u/7353520?u=df8a3f06ba8f55ae1967a3e2d5ed882903a4e330&v=4
  url: https://github.com/Kludex
- login: jgould22
  count: 263
  avatarUrl: https://avatars.githubusercontent.com/u/4335847?u=ed77f67e0bb069084639b24d812dbb2a2b1dc554&v=4

  stars: 2083
  owner_login: widgetti
  owner_html_url: https://github.com/widgetti
- name: mangum
  html_url: https://github.com/Kludex/mangum
  stars: 1969
  owner_login: Kludex
  owner_html_url: https://github.com/Kludex
- name: Yuxi-Know
  html_url: https://github.com/xerrors/Yuxi-Know
  stars: 1849
  owner_login: xerrors
  owner_html_url: https://github.com/xerrors

In diesem Fall übergeben wir eine Abhängigkeitsfunktion `get_current_active_user` an `Security` (genauso wie wir es mit `Depends` tun würden).

Wir übergeben aber auch eine `list`e von Scopes, in diesem Fall mit nur einem Scope: `items` (es könnten mehrere sein).

# Form Data { #form-data }

When you need to receive form fields instead of JSON, you can use `Form`.

/// info

To use forms, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console
$ pip install python-multipart
```

  count: 26
  avatarUrl: https://avatars.githubusercontent.com/in/15368?v=4
  url: https://github.com/apps/github-actions
Kludex:
  login: Kludex
  count: 23
  avatarUrl: https://avatars.githubusercontent.com/u/7353520?u=df8a3f06ba8f55ae1967a3e2d5ed882903a4e330&v=4
  url: https://github.com/Kludex
dmontagu:
  login: dmontagu
  count: 17

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## Voorbeeld upgrade

Pas nu het bestand `main.py` aan om de body van een `PUT` request te ontvangen.

Dankzij Pydantic kunnen we de body declareren met standaard Python types.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

# Form Models { #form-models }

You can use **Pydantic models** to declare **form fields** in FastAPI.

/// info

To use forms, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console
$ pip install python-multipart
```