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erlkaf

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erlkaf - Erlang Kafka library based on librdkafka

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erlkaf test test_consumer.erl
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test/test_consumer.erl 

-module(test_consumer).



-include("erlkaf.hrl").



-define(TOPICS, [<<"benchmark">>]).



-export([

    create_consumer/0,

    init/4,

    handle_message/2

]).



-behaviour(erlkaf_consumer_callbacks).



-record(state, {}).



create_consumer() ->

    erlkaf:start(),



    GroupId = <<"erlkaf_consumer">>,



    ClientConfig = [

        {bootstrap_servers, "172.17.3.163:9092"}

    ],



    TopicConf = [

        {auto_offset_reset, smallest}

    ],



    ok = erlkaf:create_consumer_group(client_consumer, GroupId, ?TOPICS, ClientConfig, TopicConf, ?MODULE, []).



init(Topic, Partition, Offset, Args) ->

    io:format("init topic: ~p partition: ~p offset: ~p args: ~p ~n", [

        Topic,

        Partition,

        Offset,

        Args

    ]),

    {ok, #state{}}.



handle_message(#erlkaf_msg{topic = Topic, partition = Partition, offset = Offset}, State) ->

    io:format("handle_message topic: ~p partition: ~p offset: ~p state: ~p ~n", [

        Topic,

        Partition,

        Offset,

        State

    ]),

    {ok, State}.