t","createElement","text","getAttribute","setAttribute","head","appendChild","parentNode","removeChild","toType","version","jQuery","selector","context","fn","init","isArrayLike","length","prototype","jquery","constructor","toArray","get","num","pushStack","elems","ret","merge","prevObject","each","callback","map","elem","arguments","first","eq","last","even","grep","_elem","odd","len","j","end","sort","splice","extend","options","name","copy","copyIsArray","clone","target","deep","isPlainObject...

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}\n}\n\n/**\n * ------------------------------------------------------------------------\n * jQuery\n * ------------------------------------------------------------------------\n */\n\n$.fn[NAME]             = Toast._jQueryInterface\n$.fn[NAME].Constructor = Toast\n$.fn[NAME].noConflict  = () => {\n  $.fn[NAME] = JQUERY_NO_CONFLICT\n  return Toast._jQueryInterface\n}\n\nexport default Toast\n","import $ from 'jquery'\nimport Alert from './alert'\nimport Button from './button'\nimport Carousel from './carousel'\nimport...

n    ControlSidebar._jQueryInterface.call($(this), 'toggle')\n  })\n\n  /**\n   * jQuery API\n   * ====================================================\n   */\n\n  $.fn[NAME] = ControlSidebar._jQueryInterface\n  $.fn[NAME].Constructor = ControlSidebar\n  $.fn[NAME].noConflict  = function () {\n    $.fn[NAME] = JQUERY_NO_CONFLICT\n    return ControlSidebar._jQueryInterface\n  }\n\n  return ControlSidebar\n})(jQuery)\n\nexport default ControlSidebar\n  \n","/**\n * --------------------------------------------\n...

null\n    }\n\n    return Util.findShadowRoot(element.parentNode)\n  },\n\n  jQueryDetection() {\n    if (typeof $ === 'undefined') {\n      throw new TypeError('Bootstrap\\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\\'s JavaScript.')\n    }\n\n    const version = $.fn.jquery.split(' ')[0].split('.')\n    const minMajor = 1\n    const ltMajor = 2\n    const minMinor = 9\n    const minPatch = 1\n    const maxMajor = 4\n\n    if (version[0] < ltMajor && version[1] < minMinor...

```Python hl_lines="9"
{!../../../docs_src/query_params/tutorial002.py!}
```

この場合、関数パラメータ `q` はオプショナルとなり、デフォルトでは `None` になります。

!!! check "確認"
    パスパラメータ `item_id` はパスパラメータであり、`q` はそれとは違ってクエリパラメータであると判別できるほど**FastAPI** が賢いということにも注意してください。

## クエリパラメータの型変換

`bool` 型も宣言できます。これは以下の様に変換されます:

```Python hl_lines="9"
{!../../../docs_src/query_params/tutorial003.py!}
```

この場合、以下にアクセスすると:

```

### Importe `Query`

Para isso, primeiro importe `Query` de `fastapi`:

```Python hl_lines="3"
{!../../../docs_src/query_params_str_validations/tutorial002.py!}
```

## Use `Query` como o valor padrão

Agora utilize-o como valor padrão do seu parâmetro, definindo o parâmetro `max_length` para 50:

```Python hl_lines="9"
{!../../../docs_src/query_params_str_validations/tutorial002.py!}
```

## Importer `Query`

Pour cela, importez d'abord `Query` depuis `fastapi` :

```Python hl_lines="3"
{!../../../docs_src/query_params_str_validations/tutorial002.py!}
```

## Utiliser `Query` comme valeur par défaut

Construisez ensuite la valeur par défaut de votre paramètre avec `Query`, en choisissant 50 comme `max_length` :

```Python hl_lines="9"

    ```Python hl_lines="11"
    {!> ../../../docs_src/query_params_str_validations/tutorial008_py310.py!}
    ```

## 📛 🔢

🌈 👈 👆 💚 🔢 `item-query`.

💖:

```
http://127.0.0.1:8000/items/?item-query=foobaritems
```

✋️ `item-query` 🚫 ☑ 🐍 🔢 📛.

🔐 🔜 `item_query`.

✋️ 👆 💪 ⚫️ ⚫️❔ `item-query`...

⤴️ 👆 💪 📣 `alias`, & 👈 📛 ⚫️❔ 🔜 ⚙️ 🔎 🔢 💲:

### `Query`のインポート

そのために、まずは`fastapi`から`Query`をインポートします:

```Python hl_lines="3"
{!../../../docs_src/query_params_str_validations/tutorial002.py!}
```

## デフォルト値として`Query`を使用

パラメータのデフォルト値として使用し、パラメータ`max_length`を50に設定します:

```Python hl_lines="9"
{!../../../docs_src/query_params_str_validations/tutorial002.py!}
```