%% This module implements a loop handler that reads %% the request query for a timeout value, then sends %% itself a message after 1000ms. It replies a 200 when %% the message does not timeout and a 299 otherwise. -module(loop_handler_timeout_init_h). -export([init/2]). -export([info/3]). -export([terminate/3]). init(Req, _) -> #{timeout := Timeout} = cowboy_req:match_qs([{timeout, int}], Req), erlang:send_after(500, self(), message), {cowboy_loop, Req, undefined, Timeout}. info(message, Req, State) -> {stop, cowboy_req:reply(200, Req), State}; info(timeout, Req, State) -> {stop, cowboy_req:reply(<<"299 OK!">>, Req), State}. terminate(stop, _, _) -> ok.