* `www_redirect` - If set to True, requests to non-www versions of the allowed hosts will be redirected to their www counterparts. Defaults to `True`.

If an incoming request does not validate correctly then a `400` response will be sent.

## `GZipMiddleware` { #gzipmiddleware }

Handles GZip responses for any request that includes `"gzip"` in the `Accept-Encoding` header.

The middleware will handle both standard and streaming responses.

        end
        handler -->> client: HTTP error response
    end

    operation ->> client: Return response to client
    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end

			}
			return err
		}
	}

	eventData, eErr := target.store.Get(key)
	if eErr != nil {
		// The last event key in a successful batch will be sent in the channel atmost once by the replayEvents()
		// Such events will not exist and wouldve been already been sent successfully.
		if os.IsNotExist(eErr) {
			return nil
		}
		return eErr
	}

	if err := target.send(eventData); err != nil {
		if IsConnErr(err) {

Voici un conseil issu de mon point de vue très subjectif :

- 🚨 Évitez d'utiliser `Optional[SomeType]`
- À la place ✨ **utilisez `Union[SomeType, None]`** ✨.

        client.get("/broken-session-stream")


def test_broken_session_stream_no_raise():
    """
    When a dependency with yield raises after the streaming response already started
    the 200 status code is already sent, but there's still an error in the server
    afterwards, an exception is raised and captured or shown in the server logs.
    """
    with TestClient(app, raise_server_exceptions=False) as client:

    ]
}
```

## Désactiver convert_underscores { #disable-convert-underscores }

Comme pour les paramètres d'en-tête classiques, lorsque vous avez des caractères de soulignement dans les noms de paramètres, ils sont **automatiquement convertis en tirets**.

Par exemple, si vous avez un paramètre d'en-tête `save_data` dans le code, l'en-tête HTTP attendu sera `save-data`, et il apparaîtra ainsi dans la documentation.

   * Cache.asMap().putIfAbsent} after loading has completed; if another value was associated with
   * {@code key} while the new value was loading then a removal notification will be sent for the
   * new value.
   *
   * <p>If the cache loader associated with this cache is known not to throw checked exceptions,
   * then prefer {@link #getUnchecked} over this method.
   *

### The callback path expression { #the-callback-path-expression }

The callback *path* can have an [OpenAPI 3 expression](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression) that can contain parts of the original request sent to *your API*.

In this case, it's the `str`:

```Python

		}
		if ok {
			extractedSignedHeaders[http.CanonicalHeaderKey(header)] = val
			continue
		}
		switch header {
		case "expect":
			// Golang http server strips off 'Expect' header, if the
			// client sent this as part of signed headers we need to
			// handle otherwise we would see a signature mismatch.
			// `aws-cli` sets this as part of signed headers.
			//
			// According to

	readerWg     sync.WaitGroup         // used to keep track of async reader.
}

// queueItem is an item in the queue.
type queueItem struct {
	input []byte          // raw input sent to the worker
	dst   chan [][]string // result of block decode
	err   error           // any error encountered will be set here
}

// Read - reads single record.