%% Feel free to use, reuse and abuse the code in this file.
-module(http_req_attr).
-behaviour(cowboy_http_handler).
-export([init/3, handle/2, terminate/3]).
init({_, http}, Req, _) ->
{Attr, Req2} = cowboy_req:qs_val(<<"attr">>, Req),
{ok, Req2, Attr}.
handle(Req, <<"host_and_port">> = Attr) ->
{Host, Req2} = cowboy_req:host(Req),
{Port, Req3} = cowboy_req:port(Req2),
Value = [Host, "\n", integer_to_list(Port)],
{ok, Req4} = cowboy_req:reply(200, [], Value, Req3),
{ok, Req4, Attr}.
terminate(_, _, _) ->
ok.