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vent

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PubSub event bus over AMQP for Erlang

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vent src vent_helper.erl
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src/vent_helper.erl 

-module(vent_helper).



-export([get_host_opts/0, opt/2, required_opt/1]).



-include("vent_internal.hrl").



-spec get_host_opts() -> host_opts().

get_host_opts() ->

    Opts = [{host, opt(host, "localhost")},

            {port, opt(port, 5672)},

            {virtual_host, opt(virtual_host, <<"/">>)},

            {username, opt(username, undefined)},

            {password, opt(password, undefined)}],

    maps:from_list([{K, V} || {K, V} <- Opts, V =/= undefined]).



-spec opt(atom(), term()) -> term().

opt(Name, Default) ->

    application:get_env(vent, Name, Default).



-spec required_opt(atom()) -> term().

required_opt(Name) ->

    {ok, Val} = application:get_env(vent, Name),

    Val.