Dans ce cas, **FastAPI** détectera qu'il y a plus d'un paramètre dans le body (chacun correspondant à un modèle Pydantic).

Il utilisera alors les noms des paramètres comme clés, et s'attendra à recevoir quelque chose de semblable à :

```JSON
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    },
    "user": {
        "username": "dave",

# Exécuter un serveur manuellement - Uvicorn

La principale chose dont vous avez besoin pour exécuter une application **FastAPI** sur une machine serveur distante est un programme serveur ASGI tel que **Uvicorn**.

Il existe 3 principales alternatives :

* <a href="https://www.uvicorn.org/" class="external-link" target="_blank">Uvicorn</a> : un serveur ASGI haute performance.

  avatarUrl: https://avatars.githubusercontent.com/u/20477587?u=c5184dab6d021733d10c8f975b20e391856303d6&v=4
  url: https://github.com/jackleeio
choi-haram:
  login: choi-haram
  count: 2
  avatarUrl: https://avatars.githubusercontent.com/u/62204475?v=4
  url: https://github.com/choi-haram
imtiaz101325:
  login: imtiaz101325
  count: 2

---

**FastAPI** doesn't make any compromise with any database, data model or tool.

It gives you all the flexibility to choose the ones that fit your project the best.

And you can use directly many well maintained and widely used packages like `passlib` and `PyJWT`, because **FastAPI** doesn't require any complex mechanisms to integrate external packages.

## Alternativ (alt): `Query` als Defaultwert

Frühere Versionen von FastAPI (vor <abbr title="vor 2023-03">0.95.0</abbr>) benötigten `Query` als Defaultwert des Parameters, statt es innerhalb von `Annotated` unterzubringen. Die Chance ist groß, dass Sie Quellcode sehen, der das immer noch so macht, darum erkläre ich es Ihnen.

/// tip | Tipp

	}
	s.scanCalled = true
	// Loop until we have a token.
	for {
		// See if we can get a token with what we already have.
		// If we've run out of data but have an error, give the split function
		// a chance to recover any remaining, possibly empty token.
		if s.end > s.start || s.err != nil {
			advance, token, err := s.split(s.buf[s.start:s.end], s.err != nil)
			if err != nil {
				if err == ErrFinalToken {

    azkaban(prisoner-of-azkaban) --> |requires| harry-3[harry v3]
```

But now the problem is, if you install the packages globally (in the global environment) instead of in a local **virtual environment**, you will have to choose which version of `harry` to install.

If you want to run `philosophers-stone` you will need to first install `harry` version `1`, for example with:

<div class="termy">

```console
$ pip install "harry==1"

```console
$ pip install "fastapi[all]"
---> 100%
```

</div>

/// info

In Pydantic v1 it came included with the main package. Now it is distributed as this independent package so that you can choose to install it or not if you don't need that functionality.

///

### Create the `Settings` object { #create-the-settings-object }

Vous verrez quelque chose comme :

```JSON
{"item_id": 5, "q": "somequery"}
```

## Documentation interactive de l'API

      has been advised of the possibility of such damages.

   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only