aboutsummaryrefslogtreecommitdiffstats
path: root/doc/src/manual/cowboy_websocket_handler.ezdoc
diff options
context:
space:
mode:
Diffstat (limited to 'doc/src/manual/cowboy_websocket_handler.ezdoc')
-rw-r--r--doc/src/manual/cowboy_websocket_handler.ezdoc133
1 files changed, 0 insertions, 133 deletions
diff --git a/doc/src/manual/cowboy_websocket_handler.ezdoc b/doc/src/manual/cowboy_websocket_handler.ezdoc
deleted file mode 100644
index 0d31a54..0000000
--- a/doc/src/manual/cowboy_websocket_handler.ezdoc
+++ /dev/null
@@ -1,133 +0,0 @@
-::: cowboy_websocket_handler
-
-The `cowboy_websocket_handler` behaviour defines the interface used
-by Websocket handlers.
-
-The `init/3` and `websocket_init/3` callbacks will always be called,
-followed by zero or more calls to `websocket_handle/3` and
-`websocket_info/3`. The `websocket_terminate/3` will always
-be called last.
-
-:: Types
-
-None.
-
-:: Callbacks
-
-: init({TransportName, ProtocolName}, Req, Opts)
- -> {upgrade, protocol, cowboy_websocket}
- | {upgrade, protocol, cowboy_websocket, Req, Opts}
-
-Types:
-
-* TransportName = tcp | ssl | atom()
-* ProtocolName = http | atom()
-* Req = cowboy_req:req()
-* Opts = any()
-
-Upgrade the protocol to `cowboy_websocket`.
-
-: websocket_init(TransportName, Req, Opts)
- -> {ok, Req, State}
- | {ok, Req, State, hibernate}
- | {ok, Req, State, Timeout}
- | {ok, Req, State, Timeout, hibernate}
- | {shutdown, Req}
-
-Types:
-
-* TransportName = tcp | ssl | atom()
-* Req = cowboy_req:req()
-* Opts = any()
-* State = any()
-* Timeout = timeout()
-
-Initialize the state for this session.
-
-This function is called before the upgrade to Websocket occurs.
-It can be used to negotiate Websocket protocol extensions
-with the client. It will typically be used to register this process
-to an event manager or a message queue in order to receive
-the messages the handler wants to process.
-
-The connection will stay up for a duration of up to `Timeout`
-milliseconds after it last received data from the socket,
-at which point it will stop and close the connection.
-By default this value is set to `infinity`. It is recommended
-to either set this value or ensure by any other mechanism
-that the handler will be closed after a certain period of
-inactivity.
-
-The `hibernate` option will hibernate the process until it
-starts receiving either data from the Websocket connection
-or Erlang messages.
-
-The `shutdown` return value can be used to close the connection
-before upgrading to Websocket.
-
-: websocket_handle(InFrame, Req, State)
- -> {ok, Req, State}
- | {ok, Req, State, hibernate}
- | {reply, OutFrame | [OutFrame], Req, State}
- | {reply, OutFrame | [OutFrame], Req, State, hibernate}
- | {shutdown, Req, State}
-
-Types:
-
-* InFrame = {text | binary | ping | pong, binary()}
-* Req = cowboy_req:req()
-* State = any()
-* OutFrame = cowboy_websocket:frame()
-
-Handle the data received from the Websocket connection.
-
-This function will be called every time data is received
-from the Websocket connection.
-
-The `shutdown` return value can be used to close the
-connection. A close reply will also result in the connection
-being closed.
-
-The `hibernate` option will hibernate the process until
-it receives new data from the Websocket connection or an
-Erlang message.
-
-: websocket_info(Info, Req, State)
- -> {ok, Req, State}
- | {ok, Req, State, hibernate}
- | {reply, OutFrame | [OutFrame], Req, State}
- | {reply, OutFrame | [OutFrame], Req, State, hibernate}
- | {shutdown, Req, State}
-
-Types:
-
-* Info = any()
-* Req = cowboy_req:req()
-* State = any()
-* OutFrame = cowboy_websocket:frame()
-
-Handle the Erlang message received.
-
-This function will be called every time an Erlang message
-has been received. The message can be any Erlang term.
-
-The `shutdown` return value can be used to close the
-connection. A close reply will also result in the connection
-being closed.
-
-The `hibernate` option will hibernate the process until
-it receives another message or new data from the Websocket
-connection.
-
-: websocket_terminate(Reason, Req, State) -> ok
-
-Types:
-
-* Reason = {normal, shutdown | timeout} | {remote, closed} | {remote, cowboy_websocket:close_code(), binary()} | {error, badencoding | badframe | closed | atom()}
-* Req = cowboy_req:req()
-* State = any()
-
-Perform any necessary cleanup of the state.
-
-The connection will be closed and the process stopped right
-after this call.