Add missing `compresslevel` parameter on docs (#2553)

* Add missing compresslevel parameter on docs

The compresslevel parameter was added in #1128.
But, it was not added to the document, so an explanation was added.

* Update docs/middleware.md

---------

Co-authored-by: Marcelo Trylesinski <marcelotryle@gmail.com>
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Jun-Ah 준아 2024-03-26 02:57:47 +09:00 committed by GitHub
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@ -185,7 +185,7 @@ from starlette.middleware.gzip import GZipMiddleware
routes = ...
middleware = [
Middleware(GZipMiddleware, minimum_size=1000)
Middleware(GZipMiddleware, minimum_size=1000, compresslevel=9)
]
app = Starlette(routes=routes, middleware=middleware)
@ -194,6 +194,7 @@ app = Starlette(routes=routes, middleware=middleware)
The following arguments are supported:
* `minimum_size` - Do not GZip responses that are smaller than this minimum size in bytes. Defaults to `500`.
* `compresslevel` - Used during GZip compression. It is an integer ranging from 1 to 9. Defaults to `9`. Lower value results in faster compression but larger file sizes, while higher value results in slower compression but smaller file sizes.
The middleware won't GZip responses that already have a `Content-Encoding` set, to prevent them from being encoded twice.