Lors de la création de l'objet application, un *chemin d'accès* pour `/openapi.json` (ou pour l'URL que vous avez définie dans votre `openapi_url`) est enregistré.

Il renvoie simplement une réponse JSON avec le résultat de la méthode `.openapi()` de l'application.

// credentials and mapping client certificates to S3 policies.
type Config struct {
	Enabled bool `json:"enabled"`

	// InsecureSkipVerify, if set to true, disables the client
	// certificate verification. It should only be set for
	// debugging or testing purposes.
	InsecureSkipVerify bool `json:"skip_verify"`
}

const (
	defaultExpiry time.Duration = 1 * time.Hour
	minExpiry     time.Duration = 15 * time.Minute

    return Settings(admin_email="******@****.***")


app.dependency_overrides[get_settings] = get_settings_override


def test_app():
    response = client.get("/info")
    data = response.json()
    assert data == {
        "app_name": "Awesome API",
        "admin_email": "******@****.***",
        "items_per_user": 50,

        } else {
            try (final CurlResponse response = curlRequest.body(buf.toString()).execute()) {
                final File tempFile = ComponentUtil.getSystemHelper().createTempFile("sereq_", ".json");
                try (final InputStream in = response.getContentAsStream()) {
                    CopyUtil.copy(in, tempFile);
                } catch (final Exception e1) {

Isso é um recurso "avançado".

Se você for um iniciante em **FastAPI** você deve considerar pular essa seção.

///

## Casos de Uso { #use-cases }

Alguns casos de uso incluem:

* Converter requisições não-JSON para JSON (por exemplo, [`msgpack`](https://msgpack.org/index.html)).
* Descomprimir corpos de requisição comprimidos com gzip.
* Registrar automaticamente todos os corpos de requisição.

Если вы откроете в браузере URL-адрес, например:

```
http://127.0.0.1:8000/items/foo-item
```

...без добавления обязательного параметра `needy`, вы увидите подобного рода ошибку:

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

			RecID2 int64 `gorm:"column:recid2;type:decimal(8);not null" json:"recid2"`
			RecID3 int64 `gorm:"column:recid3;type:decimal(8,1);not null" json:"recid3"`
		}
		type MigrateDecimalColumn2 struct {
			RecID1 int64 `gorm:"column:recid1;type:decimal(8);not null" json:"recid1"`
			RecID2 int64 `gorm:"column:recid2;type:decimal(9,1);not null" json:"recid2"`

		}
	}
}

// equalAsJSON returns whether the values are equal when encoded as JSON.
func equalAsJSON(a, b any) bool {
	aj, err := json.Marshal(a)
	if err != nil {
		panic(err)
	}
	bj, err := json.Marshal(b)
	if err != nil {
		panic(err)
	}
	return bytes.Equal(aj, bj)

	config.drivercache[tierName] = d
	return d, nil
}

// configReader returns a PutObjReader and ObjectOptions needed to save config
// using a PutObject API. PutObjReader encrypts json encoded tier configurations
// if KMS is enabled, otherwise simply yields the json encoded bytes as is.
// Similarly, ObjectOptions value depends on KMS' status.
func (config *TierConfigMgr) configReader(ctx context.Context) (*PutObjReader, *ObjectOptions, error) {

生成的代码中仍有一些**重复信息**。

我们已经知道这个方法与 **items** 有关，因为它位于 `ItemsService`（来自标签），但方法名里仍然带有标签名前缀。😕

通常我们仍然希望在 OpenAPI 中保留它，以确保操作 ID 的**唯一性**。

但对于生成的客户端，我们可以在生成之前**修改** OpenAPI 的操作 ID，只是为了让方法名更美观、更**简洁**。

我们可以把 OpenAPI JSON 下载到 `openapi.json` 文件中，然后用如下脚本**移除这个标签前缀**：

{* ../../docs_src/generate_clients/tutorial004_py310.py *}

//// tab | Node.js

```Javascript
{!> ../../docs_src/generate_clients/tutorial004.js!}
```

////