///

Vous pouvez étendre le schéma OpenAPI pour une *opération de chemin* en utilisant le paramètre `openapi_extra`.

### Extensions OpenAPI

Cet `openapi_extra` peut être utile, par exemple, pour déclarer [OpenAPI Extensions](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#specificationExtensions) :

{* ../../docs_src/path_operation_advanced_configuration/tutorial005.py hl[6] *}

- Kubelet metrics have been changed to buckets. 
  For example the exec/{podNamespace}/{podID}/{containerName} is now just exec. ([#87913](https://github.com/kubernetes/kubernetes/pull/87913), [@cheftako](https://github.com/cheftako)) [SIG Node]

 * flags is necessary to distinguish which type of Named Pipe behavior
 * is desired.
 *
 * <table border="1">
 * <caption>SmbNamedPipe Constructor Examples</caption>
 * <tr >
 * <td colspan="2"><b><code>SmbNamedPipe</code> Constructor Examples</b></td>
 * <tr>
 * <td ><b>Code Sample</b></td>
 * <td><b>Description</b></td>
 * </tr>
 * <tr>
 * <td >
 *
 * <pre>

    /**
     * Creates an {@link java.io.OutputStream} for writing to a file
     * on an SMB server addressed by the URL parameter. See {@link
     * jcifs.smb1.smb1.SmbFile} for a detailed description and examples of
     * the smb URL syntax.
     *
     * @param url An smb URL string representing the file to write to
     * @throws SmbException if an SMB error occurs

Ensuite, en arrière-plan, il mettra ces données JSON-compatible (par exemple un `dict`) à l'intérieur d'un `JSONResponse` qui sera utilisé pour envoyer la réponse au client.

Mais vous pouvez retourner une `JSONResponse` directement à partir de vos *opérations de chemin*.

Cela peut être utile, par exemple, pour retourner des en-têtes personnalisés ou des cookies.

## Renvoyer une `Response`

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Examples of behavior that contributes to a positive environment for our
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Examples of behavior that contributes to creating a positive environment include:

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Examples of unacceptable behavior by participants include:

 * flags is necessary to distinguish which type of Named Pipe behavior
 * is desired.
 *
 * <table border="1">
 * <caption>SmbNamedPipe Constructor Examples</caption>
 * <tr>
 * <td colspan="2"><b><code>SmbNamedPipe</code> Constructor Examples</b></td>
 * <tr><td ><b>Code Sample</b></td><td><b>Description</b></td></tr>
 * <tr><td ><pre>
 * new SmbNamedPipe( "smb1://server/IPC$/PIPE/foo",
 *         SmbNamedPipe.PIPE_TYPE_RDWR |

Por exemplo, se você precisar armazená-lo em um banco de dados.

Para isso, **FastAPI** fornece uma função `jsonable_encoder()`.

## Usando a função `jsonable_encoder`

Vamos imaginar que você tenha um banco de dados `fake_db` que recebe apenas dados compatíveis com JSON.

Por exemplo, ele não recebe objetos `datetime`, pois estes objetos não são compatíveis com JSON.

* `datetime.date`:
    * O `datetime.date` do Python.
    * Em requisições e respostas será representado como uma `str` no formato ISO 8601, exemplo: `2008-09-15`.
* `datetime.time`:
    * O `datetime.time` do Python.
    * Em requisições e respostas será representado como uma `str` no formato ISO 8601, exemplo: `14:23:55.003`.
* `datetime.timedelta`: