fix kafka fetch

apps/iot/src/endpoint/endpoint_kafka.erl

@@ -116,6 +116,7 @@ handle_info({timeout, _, connect}, State = #state{buffer = Buffer, status = ?DIS
                     {noreply, State#state{buffer = NBuffer, client_pid = ClientPid, status = ?CONNECTED}};
                 {error, Reason} ->
                     lager:debug("[endpoint_kafka] start_producer: ~p, get error: ~p", [ClientId, Reason]),
+                    brod:stop_client(ClientId),
                     retry_connect(),
                     {noreply, State#state{status = ?DISCONNECTED, client_pid = undefined}}
             end;

apps/iot/src/mocker/endpoint_kafka_test.erl

@@ -0,0 +1,62 @@
+%%%-------------------------------------------------------------------
+%%% @author anlicheng
+%%% @copyright (C) 2025, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 14. 11月 2025 23:29
+%%%-------------------------------------------------------------------
+-module(endpoint_kafka_test).
+-author("anlicheng").
+-include("endpoint.hrl").
+
+%% API
+-export([start_test/0, test_consumer/0]).
+
+start_test() ->
+    Name = endpoint:get_name(100),
+    {ok, Pid} = endpoint_kafka:start_link(Name, #endpoint{
+        id = 100,
+        %% 全局唯一，在路由规则中通过名称来指定
+        matcher = <<"/dhlr/device/*/*">>,
+        %% 标题描述
+        title = <<"test_kafka_title">>,
+        %% 配置项, 格式: #{<<"protocol">> => <<"http|https|ws|kafka|mqtt">>, <<"args">> => #{}}
+        config = #kafka_endpoint{
+            sasl_config = {plain, <<"test">>, <<"test123">>},
+            bootstrap_servers = [{"118.178.229.213", 9092}],
+            topic = <<"dhlr_data">>
+        }
+    }),
+
+    Json = jiffy:encode(#{
+        <<"name">> => <<"anlicheng">>,
+        <<"age">> => 30
+    }, [force_utf8]),
+
+    endpoint:forward(Pid, Json),
+    ok.
+
+test_consumer() ->
+    KafkaBootstrapEndpoints = [{"118.178.229.213", 9092}],
+    Topic = <<"dhlr_data">>,
+    Partition = 0,
+
+    ClientConfig = [
+        {sasl, {plain, <<"test">>, <<"test123">>}},
+        {reconnect_cool_down_seconds, 5},
+        {socket_options, [{keepalive, true}]}
+    ],
+
+    ok = brod:start_client(KafkaBootstrapEndpoints, client1, ClientConfig),
+    SubscriberCallbackFun = fun(Partition, Msg, ShellPid = CallbackState) ->
+        lager:debug("call here msg: ~p", [Msg]),
+        ShellPid ! Msg, {ok, ack, CallbackState}
+                            end,
+    Receive = fun() -> receive Msg -> Msg after 1000 -> timeout end end,
+    Res = brod_topic_subscriber:start_link(client1, Topic, all,
+        _ConsumerConfig=[{begin_offset, 0}],
+        _CommittedOffsets=[], message, SubscriberCallbackFun,
+        _CallbackState=self()),
+
+    lager:debug("start subscriber res: ~p", [Res]).

config/sys-dev.config

@@ -29,9 +29,7 @@
     %% 支持的协议
     {endpoints, [
       {support_protocols, [
-        http,
-        mqtt,
-        kafka
+        http
       ]}
     ]},