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-rw-r--r--doc/src/manual/cowboy_websocket.asciidoc46
1 files changed, 30 insertions, 16 deletions
diff --git a/doc/src/manual/cowboy_websocket.asciidoc b/doc/src/manual/cowboy_websocket.asciidoc
index d8b223c..fdaa482 100644
--- a/doc/src/manual/cowboy_websocket.asciidoc
+++ b/doc/src/manual/cowboy_websocket.asciidoc
@@ -152,6 +152,7 @@ Cowboy does it automatically for you.
----
opts() :: #{
compress => boolean(),
+ deflate_opts => cow_ws:deflate_opts()
idle_timeout => timeout(),
max_frame_size => non_neg_integer() | infinity,
req_filter => fun((cowboy_req:req()) -> map())
@@ -173,31 +174,44 @@ init(Req, State) ->
The default value is given next to the option name:
compress (false)::
- Whether to enable the Websocket frame compression
- extension. Frames will only be compressed for the
- clients that support this extension.
+
+Whether to enable the Websocket frame compression
+extension. Frames will only be compressed for the
+clients that support this extension.
+
+deflate_opts (#{})::
+
+Configuration for the permessage-deflate Websocket
+extension. Allows configuring both the negotiated
+options and the zlib compression options. The
+defaults optimize the compression at the expense
+of some memory and CPU.
idle_timeout (60000)::
- Time in milliseconds that Cowboy will keep the
- connection open without receiving anything from
- the client.
+
+Time in milliseconds that Cowboy will keep the
+connection open without receiving anything from
+the client.
max_frame_size (infinity)::
- Maximum frame size allowed by this Websocket
- handler. Cowboy will close the connection when
- a client attempts to send a frame that goes over
- this limit. For fragmented frames this applies
- to the size of the reconstituted frame.
+
+Maximum frame size allowed by this Websocket
+handler. Cowboy will close the connection when
+a client attempts to send a frame that goes over
+this limit. For fragmented frames this applies
+to the size of the reconstituted frame.
req_filter::
- A function applied to the Req to compact it and
- only keep required information. The Req is only
- given back in the `terminate/3` callback. By default
- it keeps the method, version, URI components and peer
- information.
+
+A function applied to the Req to compact it and
+only keep required information. The Req is only
+given back in the `terminate/3` callback. By default
+it keeps the method, version, URI components and peer
+information.
== Changelog
+* *2.6*: Deflate options can now be configured via `deflate_opts`.
* *2.0*: The Req object is no longer passed to Websocket callbacks.
* *2.0*: The callback `websocket_terminate/3` was removed in favor of `terminate/3`.
* *1.0*: Protocol introduced.