- true/strict - perform validation and error the request on any invalid fields in the ojbect. It will attempt to perform server-side validation if it is enabled on the apiserver, otherwise it will fall back to client-side validation.

///

### JSON Schemas Feld `examples` { #json-schemas-examples-field }

Aber dann fügte JSON Schema ein [`examples`](https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5)-Feld zu einer neuen Version der Spezifikation hinzu.

Und dann basierte das neue OpenAPI 3.1.0 auf der neuesten Version (JSON Schema 2020-12), die dieses neue Feld `examples` enthielt.

Então, com essa declaração de tipo, o **FastAPI** fornece <dfn title="convertendo a string que vem de um request HTTP em dados Python">"parsing"</dfn> automático do request.
///

## Validação de dados { #data-validation }

Mas se você for no navegador para [http://127.0.0.1:8000/items/foo](http://127.0.0.1:8000/items/foo), verá um bom erro HTTP:

```JSON
{
  "detail": [
    {
      "type": "int_parsing",
      "loc": [

```JSON
{"item_id":3}
```

/// check | 检查

注意，函数接收并返回的值是 `3`（ `int`），不是 `"3"`（`str`）。

**FastAPI** 通过类型声明自动进行请求的<dfn title="将来自 HTTP 请求中的字符串转换为 Python 数据类型">解析</dfn>。

///

## 数据校验 { #data-validation }

通过浏览器访问 [http://127.0.0.1:8000/items/foo](http://127.0.0.1:8000/items/foo)，接收如下 HTTP 错误信息：

```JSON
{
  "detail": [
    {
      "type": "int_parsing",
      "loc": [
        "path",

- The Pod API field `.spec.schedulingGates[*].name` now requires qualified names (like `example.com/mygate`), matching validation for names of `.spec.readinessGates[*].name`. Any uses of the alpha scheduling gate feature prior to 1.27 that do not match that validation must be renamed or deleted before upgrading to 1.27. ([#115821](https://github.com/kubernetes/kubernetes/pull/115821), [@lianghao208](https://github.com/lianghao208)) [SIG Apps...

        assertEquals(0, response.readDataWireFormat(buffer, 0, 100));
    }

    @Test
    @DisplayName("Methods should handle null buffer without validation")
    void testMethodsWithNullBuffer() {
        // The implementation doesn't validate null buffers
        // These methods simply return 0 without accessing the buffer

Hello World from Python
```

</div>

/// tip | Dica

Você pode ler mais sobre isso em [The Twelve-Factor App: Config](https://12factor.net/config).

///

## Tipos e Validação { #types-and-validation }

Но по умолчанию всё **«просто работает»**.

### Проверка значений { #validation }

* Проверка значений для большинства (или всех?) **типов данных** Python, включая:
    * Объекты JSON (`dict`).
    * Массив JSON (`list`) с определёнными типами элементов.

/// tip | Tipp

Um Umgebungsvariablen zu verstehen, können Sie [Umgebungsvariablen](../environment-variables.md) lesen.

///

## Typen und Validierung { #types-and-validation }

type contentLengthRange struct {
	Min   int64
	Max   int64
	Valid bool // If content-length-range was part of policy
}

// PostPolicyForm provides strict static type conversion and validation for Amazon S3's POST policy JSON string.
type PostPolicyForm struct {
	Expiration time.Time // Expiration date and time of the POST policy.
	Conditions struct {  // Conditional policy structure.
		Policies []struct {