foo.erl

puzza@Pauls-MacBookPro ~/src/cloudi-quickstart $ cat !$
cat hello_world.erl
-module(hello_world).
-behaviour(cloudi_service).

%% cloudi_service callbacks
-export([cloudi_service_init/3,
         cloudi_service_handle_request/11,
         cloudi_service_handle_info/3,
         cloudi_service_terminate/2]).

-include_lib("cloudi_core/include/cloudi_logger.hrl").

-record(state, {}).

cloudi_service_init(_Args, _Prefix, Dispatcher) ->
    cloudi_service:subscribe(Dispatcher, "hello_world/get").

cloudi_service_handle_request(_Type, _Name, _Pattern, _RequestInfo, _Request,
                              _Timeout, _Priority, _TransId, _Pid,
                              #state{} = State, _Dispatcher) ->
    {reply, <<"Hello World!">>, State}.

cloudi_service_handle_info(Request, State, _) ->
    ?LOG_WARN("Unknown info \"~p\"", [Request]),
    {noreply, State}.

cloudi_service_terminate(_, #state{}) ->
    ok.
puzza@Pauls-MacBookPro ~/src/cloudi-quickstart $