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30 lines
834 B
Erlang
30 lines
834 B
Erlang
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-module(ws_handler).
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-behaviour(cowboy_websocket_handler).
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-export([init/3]).
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-export([websocket_init/3]).
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-export([websocket_handle/3]).
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-export([websocket_info/3]).
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-export([websocket_terminate/3]).
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init({tcp, http}, _Req, _Opts) ->
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{upgrade, protocol, cowboy_websocket}.
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websocket_init(_TransportName, Req, _Opts) ->
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erlang:start_timer(1000, self(), <<"Hello!">>),
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{ok, Req, undefined_state}.
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websocket_handle({text, Msg}, Req, State) ->
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{reply, {text, << "That's what she said! ", Msg/binary >>}, Req, State};
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websocket_handle(_Data, Req, State) ->
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{ok, Req, State}.
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websocket_info({timeout, _Ref, Msg}, Req, State) ->
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erlang:start_timer(1000, self(), <<"How' you doin'?">>),
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{reply, {text, Msg}, Req, State};
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websocket_info(_Info, Req, State) ->
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{ok, Req, State}.
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websocket_terminate(_Reason, _Req, _State) ->
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ok.
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