</body>
</html>
"""


@app.get("/")
async def get():
    return HTMLResponse(html)


@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
    await websocket.accept()
    while True:
        data = await websocket.receive_text()

* `allow_headers` – Eine Liste von HTTP-Requestheadern, die für Cross-Origin-Requests unterstützt werden sollten. Standardmäßig `[]`. Sie können `['*']` verwenden, um alle Header zu erlauben. Die Header `Accept`, `Accept-Language`, `Content-Language` und `Content-Type` sind immer für <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests" class="external-link" rel="noopener" target="_blank">einfache CORS-Requests</a> erlaubt.

	metricsRouter.Handle(prometheusMetricsV2ResourcePath, auth(metricsResourceHandler()))

	// Metrics v3
	metricsV3Server := newMetricsV3Server(auth)

	// Register metrics v3 handler. It also accepts an optional query
	// parameter `?list` - see handler for details.
	metricsRouter.Methods(http.MethodGet).Path(metricsV3Path + "{pathComps:.*}").Handler(metricsV3Server)

import okhttp3.FallbackTestClientSocketFactory.Companion.TLS_FALLBACK_SCSV

/**
 * An SSLSocketFactory that delegates calls. Sockets created by the delegate are wrapped with ones
 * that will not accept the [TLS_FALLBACK_SCSV] cipher, thus bypassing server-side fallback
 * checks on platforms that support it. Unfortunately this wrapping will disable any
 * reflection-based calls to SSLSocket from Platform.
 */

Par exemple, disons que vous voulez avoir un *chemin d'accès* qui permet de mettre à jour les éléments et renvoie les codes HTTP 200 "OK" en cas de succès.

Mais vous voulez aussi qu'il accepte de nouveaux éléments. Et lorsque les éléments n'existaient pas auparavant, il les crée et renvoie un code HTTP de 201 "Créé".

* `allow_headers` - A list of HTTP request headers that should be supported for cross-origin requests. Defaults to `[]`. You can use `['*']` to allow all headers. The `Accept`, `Accept-Language`, `Content-Language` and `Content-Type` headers are always allowed for <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests" class="external-link" rel="noopener" target="_blank">simple CORS requests</a>.

     * GET
     * 2
     * Accept-Language: fr-CA
     * Accept-Charset: UTF-8
     * HTTP/1.1 200 OK
     * 3
     * Content-Type: image/png
     * Content-Length: 100
     * Cache-Control: max-age=600
     * ```
     *
     * A typical HTTPS file looks like this:
     *
     * ```
     * https://google.com/foo
     * GET
     * 2
     * Accept-Language: fr-CA
     * Accept-Charset: UTF-8

    @Inject
    public MavenPluginMavenPrerequisiteChecker(RuntimeInformation runtimeInformation) {
        super();
        this.runtimeInformation = runtimeInformation;
    }

    @Override
    public void accept(PluginDescriptor pluginDescriptor) {
        String requiredMavenVersion = pluginDescriptor.getRequiredMavenVersion();

        boolean isBlankVersion =

		if err := f(); err != nil {
			return err
		}
		// Mark as done only when f() is successful
		atomic.StoreUint32(&l.done, 1)
	}
	return nil
}

// DoWithContext is similar to Do except that it accepts a context as an argument to be passed.
func (l *Init) DoWithContext(ctx context.Context, f func(context.Context) error) error {
	if atomic.LoadUint32(&l.done) == 0 {
		return l.doWithContext(ctx, f)
	}
	return nil
}

async def websocket_endpoint(
    *,
    websocket: WebSocket,
    item_id: str,
    q: int | None = None,
    cookie_or_token: Annotated[str, Depends(get_cookie_or_token)],
):
    await websocket.accept()
    while True:
        data = await websocket.receive_text()
        await websocket.send_text(
            f"Session cookie or query token value is: {cookie_or_token}"
        )
        if q is not None: