Building Web Applications With Erlang Drmichalore Online

handle(Req, State) -> Body = jiffy:encode(#status => ok, data => [1,2,3]), Req2 = cowboy_req:reply(200, #<<"content-type">> => <<"application/json">>, Body, Req), ok, Req2, State. Implement cowboy_websocket behavior:

terminate(_Reason, _Req, _State) -> ok. In src/my_web_app_sup.erl , add a child: Building Web Applications With Erlang Drmichalore

-behaviour(cowboy_websocket). init(Req, State) -> cowboy_websocket, Req, State. Body = jiffy:encode(#status =&gt