Dann habe ich zu dessen Code beigetragen, um es vollständig mit JSON Schema kompatibel zu machen, und so verschiedene Möglichkeiten zum Definieren von einschränkenden Deklarationen (Constraints) zu unterstützen, und die Editorunterstützung (Typprüfungen, Codevervollständigung) zu verbessern, basierend auf den Tests in mehreren Editoren.

* Even dependencies can have dependencies, creating a hierarchy or **"graph" of dependencies**.
* All **automatically handled** by the framework.
* All the dependencies can require data from requests and **augment the path operation** constraints and automatic documentation.
* **Automatic validation** even for *path operation* parameters defined in dependencies.
* Support for complex user authentication systems, **database connections**, etc.

J'y ai ensuite contribué, pour le rendre entièrement compatible avec JSON Schema, pour supporter différentes manières de définir les déclarations de contraintes, et pour améliorer le support des éditeurs (vérifications de type, autocomplétion) sur la base des tests effectués dans plusieurs éditeurs.

{!../../../docs_src/query_params_str_validations/tutorial006.py!}
```

!!! info
    Si vous n'avez jamais vu ce `...` auparavant : c'est une des constantes natives de Python <a href="https://docs.python.org/fr/3/library/constants.html#Ellipsis" class="external-link" target="_blank">appelée "Ellipsis"</a>.

Cela indiquera à **FastAPI** que la présence de ce paramètre est obligatoire.

## Liste de paramètres / valeurs multiples via Query

```Python hl_lines="7"
{!../../../docs_src/query_params_str_validations/tutorial006.py!}
```

!!! info "情報"
    これまで`...`を見たことがない方へ: これは特殊な単一値です。<a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">Pythonの一部であり、"Ellipsis"と呼ばれています</a>。

これは **FastAPI** にこのパラメータが必須であることを知らせます。

## クエリパラメータのリスト / 複数の値

```Python hl_lines="7"
{!../../../docs_src/query_params_str_validations/tutorial006b.py!}
```

!!! info
    🚥 👆 🚫 👀 👈 `...` ⏭: ⚫️ 🎁 👁 💲, ⚫️ <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">🍕 🐍 &amp; 🤙 "❕"</a>.

    ⚫️ ⚙️ Pydantic &amp; FastAPI 🎯 📣 👈 💲 ✔.

👉 🔜 ➡️ **FastAPI** 💭 👈 👉 🔢 ✔.

### ✔ ⏮️ `None`

    {!> ../../../docs_src/path_params_numeric_validations/tutorial003_an.py!}
    ```

## Number validations: greater than or equal

With `Query` and `Path` (and others you'll see later) you can declare number constraints.

Here, with `ge=1`, `item_id` will need to be an integer number "`g`reater than or `e`qual" to `1`.

=== "Python 3.9+"

    ```Python hl_lines="10"

```Python hl_lines="7"
{!../../../docs_src/query_params_str_validations/tutorial006.py!}
```

!!! info "Informação"
    Se você nunca viu os `...` antes: é um valor único especial, faz <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">parte do Python e é chamado "Ellipsis"</a>.

Dessa forma o **FastAPI** saberá que o parâmetro é obrigatório.

## Lista de parâmetros de consulta / múltiplos valores

There can be several approaches to achieve this, and I'll tell you more about specific strategies in the next chapters, for example when talking about Docker and containers.

The main constraint to consider is that there has to be a **single** component handling the **port** in the **public IP**. And then it has to have a way to **transmit** the communication to the replicated **processes/workers**.

```Python hl_lines="7"
{!../../../docs_src/query_params_str_validations/tutorial006b.py!}
```

!!! info
    如果你之前没见过 `...` 这种用法：它是一个特殊的单独值，它是 <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">Python 的一部分并且被称为「省略号」</a>。
    Pydantic 和 FastAPI 使用它来显式的声明需要一个值。

这将使 **FastAPI** 知道此查询参数是必需的。

### 使用`None`声明必需参数