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erdico.erl
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erdico.erl
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-module(erdico).
% For erl -s erdico
-export([start/0]).
% Application here
-behavior(application).
-export([start/2, stop/1]).
% Supervisor is also here
-behavior(supervisor).
-export([init/1]).
start() ->
application:ensure_all_started(?MODULE).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Application callbacks
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
start(_, _) ->
supervisor:start_link({local, ?MODULE}, ?MODULE, root).
stop(_) ->
ok.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Supervisor callbacks
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
init(root) ->
{ok, _} = start_cowboy(),
Counter = {counter, {erdico_counter, start_link, []},
permanent, 1000, worker, [erdico_counter]},
{ok, {{one_for_one, 10, 5}, [Counter]}}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Internals
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
start_cowboy() ->
UserInc = {"/inc/:amount", erdico_handler, user_inc},
DefPath = {'_', erdico_handler, []}, % Catch-all path
Host = {'_', [UserInc, DefPath]}, % No virtualhosts
Dispatch = cowboy_router:compile([Host]),
Env = [{env, [{dispatch, Dispatch}]}],
Hooks = configured_hooks(),
cowboy:start_http(?MODULE, 10, [{port, conf(port, 2080)}], Env ++ Hooks).
conf(Key, Default) ->
application:get_env(?MODULE, Key, Default).
configured_hooks() ->
case conf(log_access, true) of
true -> [{onresponse, fun erdico_log:access_log_hook/4}];
false -> []
end.