Le résultat de son appel est quelque chose qui peut être encodé avec la fonction standard de Python [`json.dumps()`](https://docs.python.org/3/library/json.html#json.dumps).

Neste exemplo, ele converteria o modelo Pydantic em um `dict`, e o `datetime` em um `str`.

O resultado de chamar a função é algo que pode ser codificado com o padrão do Python [`json.dumps()`](https://docs.python.org/3/library/json.html#json.dumps).

A função não retorna um grande `str` contendo os dados no formato JSON (como uma string). Mas sim, retorna uma estrutura de dados padrão do Python (por exemplo, um `dict`) com valores e subvalores compatíveis com JSON.

{* ../../docs_src/encoder/tutorial001_py310.py hl[4,21] *}

在此範例中，它會把 Pydantic 模型轉成 `dict`，並將 `datetime` 轉成 `str`。

呼叫後的結果可以用 Python 標準的 [`json.dumps()`](https://docs.python.org/3/library/json.html#json.dumps) 進行編碼。

它不會回傳一個包含 JSON 內容的大型 `str`（字串）。它會回傳 Python 標準的資料結構（例如 `dict`），其中的值與子值都與 JSON 相容。

/// note

事實上，`jsonable_encoder` 在 **FastAPI** 內部也被用來轉換資料。不過在許多其他情境中它同樣實用。

## API Response

XML response for this API is similar to [AWS STS AssumeRoleWithWebIdentity](https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRoleWithWebIdentity.html#API_AssumeRoleWithWebIdentity_ResponseElements)

## Example request and response

Sample request with `curl`:

```sh

	return subtle.ConstantTimeCompare([]byte(sig1), []byte(sig2)) == 1
}

// doesPolicySignatureMatch - Verify query headers with post policy
//   - http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-HTTPPOSTConstructPolicy.html
//
// returns ErrNone if the signature matches.
func doesPolicySignatureV4Match(formValues http.Header) (auth.Credentials, APIErrorCode) {
	// Server region.
	region := globalSite.Region()

	// Most notably, it cannot support sparse files, files larger than 8GiB,
	// filenames larger than 256 characters, and non-ASCII filenames.
	//
	// Reference:
	//	http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
	FormatUSTAR

	// FormatPAX represents the PAX header format defined in POSIX.1-2001.
	//
	// PAX extends USTAR by writing a special file with Typeflag TypeXHeader

In diesem Beispiel wird das Pydantic-Modell in ein `dict`, und das `datetime`-Objekt in ein `str` konvertiert.

Das Resultat dieses Aufrufs ist etwas, das mit Pythons Standard-[`json.dumps()`](https://docs.python.org/3/library/json.html#json.dumps) kodiert werden kann.

En este ejemplo, convertiría el modelo de Pydantic a un `dict`, y el `datetime` a un `str`.

El resultado de llamarlo es algo que puede ser codificado con la función estándar de Python [`json.dumps()`](https://docs.python.org/3/library/json.html#json.dumps).

No devuelve un gran `str` que contenga los datos en formato JSON (como un string). Devuelve una estructura de datos estándar de Python (por ejemplo, un `dict`) con valores y sub-valores que son todos compatibles con JSON.

size ########## ## ## You should always set the min and max JVM heap ## size to the same value. For example, to set ## the heap to 4 GB, set: ## ## -Xms4g ## -Xmx4g ## ## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html ## for more information ## ########## # Xms represents the initial size of total heap space # Xmx represents the maximum size of total heap space -Xms1g -Xmx1g ########## ## Expert settings ########## ## ## All settings below this section are considered...

size ########## ## ## You should always set the min and max JVM heap ## size to the same value. For example, to set ## the heap to 4 GB, set: ## ## -Xms4g ## -Xmx4g ## ## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html ## for more information ## ########## # Xms represents the initial size of total heap space # Xmx represents the maximum size of total heap space -Xms1g -Xmx1g ########## ## Expert settings ########## ## ## All settings below this section are considered...