Building Web Applications With Erlang Drmichalore Updated ❲2024❳

init(Req, State) -> cowboy_websocket, Req, State.

init(Req, State) -> Req2 = cowboy_req:reply(200, # <<"content-type">> => <<"text/html">> , <<"<h1>Hello from Erlang!</h1>">>, Req), ok, Req2, State. Building Web Applications With Erlang Drmichalore

Use message passing between processes instead of global variables. This prevents race conditions and makes your app horizontally scalable. init(Req, State) -&gt; cowboy_websocket, Req, State

Compile and run the application: