Allow websocket_init/1 to reply/close/hibernate

test/handlers/ws_init_h.erl

@@ -0,0 +1,47 @@
+%% This module returns a different value in websocket_init/1 depending on the query string.
+
+-module(ws_init_h).
+-behavior(cowboy_websocket).
+
+-export([init/2]).
+-export([websocket_init/1]).
+-export([websocket_handle/2]).
+-export([websocket_info/2]).
+
+init(Req, _) ->
+	State = binary_to_atom(cowboy_req:qs(Req), latin1),
+	{cowboy_websocket, Req, State}.
+
+%% Sleep to make sure the HTTP response was sent.
+websocket_init(State) ->
+	timer:sleep(100),
+	do_websocket_init(State).
+
+do_websocket_init(State=ok) ->
+	{ok, State};
+do_websocket_init(State=ok_hibernate) ->
+	{ok, State, hibernate};
+do_websocket_init(State=reply) ->
+	{reply, {text, "Hello"}, State};
+do_websocket_init(State=reply_hibernate) ->
+	{reply, {text, "Hello"}, State, hibernate};
+do_websocket_init(State=reply_close) ->
+	{reply, close, State};
+do_websocket_init(State=reply_close_hibernate) ->
+	{reply, close, State, hibernate};
+do_websocket_init(State=reply_many) ->
+	{reply, [{text, "Hello"}, {binary, "World"}], State};
+do_websocket_init(State=reply_many_hibernate) ->
+	{reply, [{text, "Hello"}, {binary, "World"}], State, hibernate};
+do_websocket_init(State=reply_many_close) ->
+	{reply, [{text, "Hello"}, close], State};
+do_websocket_init(State=reply_many_close_hibernate) ->
+	{reply, [{text, "Hello"}, close], State, hibernate};
+do_websocket_init(State=stop) ->
+	{stop, State}.
+
+websocket_handle(_, State) ->
+	{ok, State}.
+
+websocket_info(_, State) ->
+	{ok, State}.