Dann können wir einen `AsyncClient` mit der App erstellen und mit `await` asynchrone Requests an ihn senden.

{* ../../docs_src/async_tests/app_a_py39/test_main.py hl[9:12] *}

Das ist das Äquivalent zu:

```Python
response = client.get('/')
```

... welches wir verwendet haben, um unsere Requests mit dem `TestClient` zu machen.

/// tip | Tipp

```

### Using WebIdentiy API

On another terminal run `web-identity.go` a sample client application which obtains JWT id_tokens from an identity provider, in our case its Keycloak. Uses the returned id_token response to get new temporary credentials from the MinIO server using the STS API call `AssumeRoleWithWebIdentity`.

```

     *
     * @param buf the buffer containing the transaction data
     * @param off the offset in the buffer
     * @param length the length of data to send
     * @param inB the buffer to receive the response
     * @param maxRecvCnt the maximum number of bytes to receive
     * @return len the number of bytes received
     * @throws IOException if an I/O error occurs
     */

        }

        @Test
        @DisplayName("Should be usable as both request and response")
        void testDualInterfaceUsage() {
            PreauthIntegrityNegotiateContext context = new PreauthIntegrityNegotiateContext();

            NegotiateContextRequest request = context;
            NegotiateContextResponse response = context;

        client.setInitParameterMap(params);
    }

    /**
     * Executes the request with retry logic.
     * @param request The request data.
     * @return The response data.
     */
    @Override
    public ResponseData execute(final RequestData request) {
        if (listener != null) {
            listener.onRequestStart(this, request);
        }

}

// UseReadHeaderTimeout configure read header timeout
func (srv *Server) UseReadHeaderTimeout(d time.Duration) *Server {
	srv.ReadHeaderTimeout = d
	return srv
}

// UseWriteTimeout configure connection response write timeout.
func (srv *Server) UseWriteTimeout(d time.Duration) *Server {
	srv.WriteTimeout = d
	return srv
}

// UseHandler configure final handler for this HTTP *Server

As part of the application object creation, a *path operation* for `/openapi.json` (or for whatever you set your `openapi_url`) is registered.

It just returns a JSON response with the result of the application's `.openapi()` method.

By default, what the method `.openapi()` does is check the property `.openapi_schema` to see if it has contents and return them.

würden Sie die mehreren `q`-*Query-Parameter*-Werte (`foo` und `bar`) in einer Python-`list` in Ihrer *Pfadoperation-Funktion* im *Funktionsparameter* `q` erhalten.

So wäre die <abbr title="Response – Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr> zu dieser URL:

```JSON
{
  "q": [
    "foo",
    "bar"
  ]
}
```

/// tip | Tipp

///

/// tip

By declaring `response_class=HTMLResponse` the docs UI will be able to know that the response will be HTML.

///

/// note | Technical Details

You could also use `from starlette.templating import Jinja2Templates`.

        // Prepare input SIDs
        SID s1 = sid("S-1-5-21-1-2-3-1001");
        SID s2 = sid("S-1-5-21-1-2-3-1002");
        jcifs.SID[] in = new jcifs.SID[] { s1, s2 };

        // Stub sendrecv to emulate successful RPC response
        doAnswer(inv -> {
            // Capture the outgoing RPC and populate result fields as the server would
            Object msg = inv.getArgument(0);