diff --git a/apps/endpoint/src/endpoint_mysql.erl b/apps/endpoint/src/endpoint_mysql.erl
new file mode 100644
index 0000000..f069027
--- /dev/null
+++ b/apps/endpoint/src/endpoint_mysql.erl
@@ -0,0 +1,200 @@
+
+%%%-------------------------------------------------------------------
+%%% @author aresei
+%%% @copyright (C) 2023, <COMPANY>
+%%% @doc
+%%%
+%%% @end
+%%% Created : 06. 7月 2023 12:02
+%%%-------------------------------------------------------------------
+-module(endpoint_mysql).
+
+-include("endpoint.hrl").
+-behaviour(gen_statem).
+
+%% API
+-export([start_link/2]).
+-export([get_name/1, get_pid/1, forward/4, get_stat/1, reload/2, cleanup/1]).
+
+%% gen_statem callbacks
+-export([init/1, handle_event/4, terminate/3, code_change/4, callback_mode/0]).
+
+%% 消息重发间隔
+-define(RETRY_INTERVAL, 5000).
+
+-record(state, {
+    endpoint :: #endpoint{},
+    buffer :: endpoint_buffer:buffer(),
+    pool_pid :: undefined | pid()
+}).
+
+%%%===================================================================
+%%% API
+%%%===================================================================
+
+-spec get_name(Id :: integer()) -> atom().
+get_name(Id) when is_integer(Id) ->
+    list_to_atom("endpoint:" ++ integer_to_list(Id)).
+
+-spec get_pid(Name :: binary()) -> undefined | pid().
+get_pid(Name) when is_binary(Name) ->
+    whereis(get_name(Name)).
+
+-spec forward(Pid :: undefined | pid(), LocationCode :: binary(), Fields :: list(), Timestamp :: integer()) -> no_return().
+forward(undefined, _, _, _) ->
+    ok;
+forward(Pid, LocationCode, Fields, Timestamp) when is_pid(Pid), is_binary(LocationCode), is_list(Fields); is_binary(Fields), is_integer(Timestamp) ->
+    gen_statem:cast(Pid, {forward, LocationCode, Fields, Timestamp}).
+
+reload(Pid, NEndpoint = #endpoint{}) when is_pid(Pid) ->
+    gen_statem:cast(Pid, {reload, NEndpoint}).
+
+-spec get_stat(Pid :: pid()) -> {ok, Stat :: #{}}.
+get_stat(Pid) when is_pid(Pid) ->
+    gen_statem:call(Pid, get_stat, 5000).
+
+-spec cleanup(Pid :: pid()) -> ok.
+cleanup(Pid) when is_pid(Pid) ->
+    gen_statem:cast(Pid, cleanup).
+
+%% @doc Creates a gen_statem process which calls Module:init/1 to
+%% initialize. To ensure a synchronized start-up procedure, this
+%% function does not return until Module:init/1 has returned.
+start_link(Name, Endpoint = #endpoint{}) when is_atom(Name) ->
+    gen_statem:start_link({local, Name}, ?MODULE, [Endpoint], []).
+
+%%%===================================================================
+%%% gen_statem callbacks
+%%%===================================================================
+
+%% @private
+%% @doc Whenever a gen_statem is started using gen_statem:start/[3,4] or
+%% gen_statem:start_link/[3,4], this function is called by the new
+%% process to initialize.
+init([Endpoint]) ->
+    erlang:process_flag(trap_exit, true),
+    %% 创建转发器, 避免阻塞当前进程的创建，因此采用了延时初始化的机制
+    erlang:start_timer(0, self(), create_postman),
+    %% 初始化存储
+    Buffer = endpoint_buffer:new(Endpoint, 10),
+
+    {ok, disconnected, #state{endpoint = Endpoint, buffer = Buffer}}.
+
+%% @private
+%% @doc This function is called by a gen_statem when it needs to find out
+%% the callback mode of the callback module.
+callback_mode() ->
+    handle_event_function.
+
+%% @private
+%% @doc There should be one instance of this function for each possible
+%% state name.  If callback_mode is state_functions, one of these
+%% functions is called when gen_statem receives and event from
+%% call/2, cast/2, or as a normal process message.
+
+handle_event(cast, {forward, LocationCode, Fields, Timestamp}, _StateName, State = #state{buffer = Buffer, endpoint = #endpoint{name = Name}}) ->
+    lager:debug("[iot_endpoint] name: ~p, match location_code: ~p", [Name, LocationCode]),
+    NBuffer = endpoint_buffer:append({LocationCode, Fields, Timestamp}, Buffer),
+    {keep_state, State#state{buffer = NBuffer}};
+
+handle_event(cast, cleanup, _StateName, State = #state{buffer = Buffer}) ->
+    endpoint_buffer:cleanup(Buffer),
+    {keep_state, State};
+
+handle_event(info, {timeout, _, create_postman}, disconnected,
+    State = #state{buffer = Buffer, endpoint = #endpoint{name = Name, config = #mysql_endpoint{host = Host, port = Port, username = Username, password = Password, database = Database, table_name = TableName, pool_size = PoolSize}}}) ->
+    lager:debug("[iot_endpoint] endpoint: ~p, create postman", [Name]),
+    WorkerArgs = [
+        {host, binary_to_list(Host)},
+        {port, Port},
+        {user, binary_to_list(Username)},
+        {password, binary_to_list(Password)},
+        {keep_alive, true},
+        {database, binary_to_list(Database)},
+        {queries, [<<"set names utf8">>]}
+    ],
+
+    %% 启动工作的线程池
+    case poolboy:start_link([{size, PoolSize}, {max_overflow, PoolSize}, {worker_module, mysql}], WorkerArgs) of
+        {ok, PoolPid} ->
+            NBuffer = endpoint_buffer:trigger_n(Buffer),
+            {next_state, connected, State#state{pool_pid = PoolPid, buffer = NBuffer}};
+        ignore ->
+            erlang:start_timer(?RETRY_INTERVAL, self(), create_postman),
+            {keep_state, State};
+        {error, Reason} ->
+            lager:warning("[mqtt_postman] start connect pool, get error: ~p", [Reason]),
+            erlang:start_timer(?RETRY_INTERVAL, self(), create_postman),
+            {keep_state, State}
+    end;
+
+%% 获取当前统计信息
+handle_event({call, From}, get_stat, _StateName, State = #state{buffer = Buffer}) ->
+    Stat = endpoint_buffer:stat(Buffer),
+
+    {keep_state, State, [{reply, From, Stat}]};
+
+%% 离线时，忽略数据发送逻辑
+handle_event(info, {next_data, _Id, _LocationCode, _Message}, disconnected, State) ->
+    {keep_state, State};
+%% 发送数据到mqtt服务器
+handle_event(info, {next_data, Id, _LocationCode, Fields}, connected,
+    State = #state{pool_pid = PoolPid, buffer = Buffer, endpoint = #endpoint{name = Name, config = #mysql_endpoint{table_name = Table}}}) ->
+
+    {ok, InsertSql, Values} = insert_sql(Table, Fields),
+    case poolboy:transaction(PoolPid, fun(ConnPid) -> mysql:query(ConnPid, InsertSql, Values) end) of
+        ok ->
+            NBuffer = endpoint_buffer:ack(Id, Buffer),
+            {keep_state, State#state{buffer = NBuffer}};
+        Error ->
+            lager:warning("[endpoint_mysql] endpoint: ~p, insert mysql get error: ~p", [Name, Error]),
+            {keep_state, State}
+    end;
+
+%% postman进程挂掉时，重新建立新的
+handle_event(info, {'EXIT', PoolPid, Reason}, connected, State = #state{endpoint = #endpoint{name = Name}, pool_pid = PoolPid}) ->
+    lager:warning("[enpoint_mqtt] endpoint: ~p, conn pid exit with reason: ~p", [Name, Reason]),
+    erlang:start_timer(?RETRY_INTERVAL, self(), create_postman),
+    {next_state, disconnected, State#state{pool_pid = undefined}};
+
+%% @private
+%% @doc If callback_mode is handle_event_function, then whenever a
+%% gen_statem receives an event from call/2, cast/2, or as a normal
+%% process message, this function is called.
+handle_event(EventType, Event, StateName, State) ->
+    lager:warning("[iot_endpoint] unknown message, event_type: ~p, event: ~p, state_name: ~p, state: ~p", [EventType, Event, StateName, State]),
+    {keep_state, State}.
+
+%% @private
+%% @doc This function is called by a gen_statem when it is about to
+%% terminate. It should be the opposite of Module:init/1 and do any
+%% necessary cleaning up. When it returns, the gen_statem terminates with
+%% Reason. The return value is ignored.
+terminate(Reason, _StateName, #state{endpoint = #endpoint{name = Name}, buffer = Buffer}) ->
+    lager:debug("[iot_endpoint] endpoint: ~p, terminate with reason: ~p", [Name, Reason]),
+    endpoint_buffer:cleanup(Buffer),
+    ok.
+
+%% @private
+%% @doc Convert process state when code is changed
+code_change(_OldVsn, StateName, State = #state{}, _Extra) ->
+    {ok, StateName, State}.
+
+%%%===================================================================
+%%% Internal functions
+%%%===================================================================
+
+-spec insert_sql(Table :: binary(), Fields :: list()) -> {ok, Sql :: binary(), Values :: list()}.
+insert_sql(Table, Fields) when is_binary(Table), is_list(Fields) ->
+    {Keys, Values} = kvs(Fields),
+
+    FieldSql = iolist_to_binary(lists:join(<<", ">>, Keys)),
+    Placeholders = lists:duplicate(length(Keys), <<"?">>),
+    ValuesPlaceholder = iolist_to_binary(lists:join(<<", ">>, Placeholders)),
+
+    {ok, <<"INSERT INTO ", Table/binary, "(", FieldSql/binary, ") VALUES(", ValuesPlaceholder/binary, ")">>, Values}.
+
+-spec kvs(Fields :: list()) -> {Keys :: list(), Values :: list()}.
+kvs(Fields) when is_list(Fields) ->
+    {Keys0, Values0} = lists:foldl(fun({K, V}, {Acc0, Acc1}) -> {[K|Acc0], [V|Acc1]} end, {[], []}, Fields),
+    {lists:reverse(Keys0), lists:reverse(Values0)}.
\ No newline at end of file
diff --git a/apps/endpoint/src/gen_endpoint.erl b/apps/endpoint/src/gen_endpoint.erl
deleted file mode 100644
index 9951bf1..0000000
--- a/apps/endpoint/src/gen_endpoint.erl
+++ /dev/null
@@ -1,374 +0,0 @@
-
-%%%-------------------------------------------------------------------
-%%% @author aresei
-%%% @copyright (C) 2023, <COMPANY>
-%%% @doc
-%%%
-%%% @end
-%%% Created : 06. 7月 2023 12:02
-%%%-------------------------------------------------------------------
--module(gen_endpoint).
-
--include("endpoint.hrl").
--behaviour(gen_statem).
-
-%% API
--export([start_link/3]).
--export([get_name/1, get_pid/1, forward/4, get_stat/1, reload/2, clean_up/1, get_mapper_fun/1]).
-
-%% gen_statem callbacks
--export([init/1, handle_event/4, terminate/3, code_change/4, callback_mode/0]).
-
-%% 消息重发间隔
--define(RETRY_INTERVAL, 5000).
-
--record(state, {
-    endpoint,
-    mod :: atom(),
-    mod_state :: any(),
-    %% ets存储
-    last_id = 1 :: integer(),
-    cursor :: integer(),
-    tid :: reference(),
-    %% 定时器
-    timer_map = #{},
-    %% 窗口大小，允许最大的未确认消息数
-    window_size = 10,
-    %% 未确认的消息数
-    flight_num = 0,
-    %% 记录成功处理的消息数
-    acc_num = 0
-}).
-
--callback init(Args :: term()) ->
-    {ok, State :: term()} | {ok, State :: term(), timeout() | hibernate | {continue, term()}} |
-    {stop, Reason :: term()} | ignore.
-
--callback handle_data(Request :: term(), From :: from(),
-    State :: term()) ->
-    {reply, Reply :: term(), NewState :: term()} |
-    {reply, Reply :: term(), NewState :: term(), timeout() | hibernate | {continue, term()}} |
-    {noreply, NewState :: term()} |
-    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
-    {stop, Reason :: term(), Reply :: term(), NewState :: term()} |
-    {stop, Reason :: term(), NewState :: term()}.
-
--callback handle_cast(Request :: term(), State :: term()) ->
-    {noreply, NewState :: term()} |
-    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
-    {stop, Reason :: term(), NewState :: term()}.
--callback handle_info(Info :: timeout | term(), State :: term()) ->
-    {noreply, NewState :: term()} |
-    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
-    {stop, Reason :: term(), NewState :: term()}.
--callback handle_continue(Info :: term(), State :: term()) ->
-    {noreply, NewState :: term()} |
-    {noreply, NewState :: term(), timeout() | hibernate | {continue, term()}} |
-    {stop, Reason :: term(), NewState :: term()}.
--callback terminate(Reason :: (normal | shutdown | {shutdown, term()} |
-term()),
-    State :: term()) ->
-    term().
--callback code_change(OldVsn :: (term() | {down, term()}), State :: term(),
-    Extra :: term()) ->
-    {ok, NewState :: term()} | {error, Reason :: term()}.
-
-%%%===================================================================
-%%% API
-%%%===================================================================
-
--spec get_name(Name :: binary() | #endpoint{}) -> atom().
-get_name(#endpoint{name = Name}) when is_binary(Name) ->
-    get_name(Name);
-get_name(EndpointName) when is_binary(EndpointName) ->
-    binary_to_atom(<<"endpoint:", EndpointName/binary>>).
-
--spec get_pid(Name :: binary()) -> undefined | pid().
-get_pid(Name) when is_binary(Name) ->
-    whereis(get_name(Name)).
-
--spec forward(Pid :: undefined | pid(), LocationCode :: binary(), Fields :: list(), Timestamp :: integer()) -> no_return().
-forward(undefined, _, _, _) ->
-    ok;
-forward(Pid, LocationCode, Fields, Timestamp) when is_pid(Pid), is_binary(LocationCode), is_list(Fields); is_binary(Fields), is_integer(Timestamp) ->
-    gen_statem:cast(Pid, {forward, LocationCode, Fields, Timestamp}).
-
-reload(Pid, NEndpoint = #endpoint{}) when is_pid(Pid) ->
-    gen_statem:cast(Pid, {reload, NEndpoint}).
-
--spec get_stat(Pid :: pid()) -> {ok, Stat :: #{}}.
-get_stat(Pid) when is_pid(Pid) ->
-    gen_statem:call(Pid, get_stat, 5000).
-
--spec clean_up(Pid :: pid()) -> ok.
-clean_up(Pid) when is_pid(Pid) ->
-    gen_statem:call(Pid, clean_up, 5000).
-
--spec get_mapper_fun(Pid :: pid()) -> fun().
-get_mapper_fun(Pid) when is_pid(Pid) ->
-    gen_statem:call(Pid, get_mapper_fun).
-
-%% @doc Creates a gen_statem process which calls Module:init/1 to
-%% initialize. To ensure a synchronized start-up procedure, this
-%% function does not return until Module:init/1 has returned.
-start_link(Name, Mod, Endpoint = #endpoint{}) ->
-    gen_statem:start_link({local, Name}, ?MODULE, [Mod, Endpoint], []).
-
-%%%===================================================================
-%%% gen_statem callbacks
-%%%===================================================================
-
-%% @private
-%% @doc Whenever a gen_statem is started using gen_statem:start/[3,4] or
-%% gen_statem:start_link/[3,4], this function is called by the new
-%% process to initialize.
-init([Mod, Endpoint = #endpoint{id = Id}]) ->
-    erlang:process_flag(trap_exit, true),
-
-    %% 创建转发器, 避免阻塞当前进程的创建，因此采用了延时初始化的机制
-    erlang:start_timer(0, self(), create_postman),
-
-    %% 初始化存储
-    EtsName = list_to_atom("endpoint_ets:" ++ integer_to_list(Id)),
-    Tid = ets:new(EtsName, [ordered_set, private]),
-
-    case Mod:init(Endpoint) of
-        {ok, StateName, MState} ->
-            {ok, StateName, #state{endpoint = Endpoint, mod = Mod, tid = Tid, mod_state = MState}};
-        {stop, Reason} ->
-            {stop, Reason}
-    end.
-
-%% @private
-%% @doc This function is called by a gen_statem when it needs to find out
-%% the callback mode of the callback module.
-callback_mode() ->
-    handle_event_function.
-
-%% @private
-%% @doc There should be one instance of this function for each possible
-%% state name.  If callback_mode is state_functions, one of these
-%% functions is called when gen_statem receives and event from
-%% call/2, cast/2, or as a normal process message.
-
-%% TODO 不支持, 重新加载新的终端配置, 对应的办法是关闭后重启
-
-handle_event(cast, {forward, LocationCode, Fields, Timestamp}, StateName, State = #state{tid = Tid, last_id = LastId, window_size = WindowSize, flight_num = FlightNum, endpoint = #endpoint{name = Name}}) ->
-    lager:debug("[iot_endpoint] name: ~p, match location_code: ~p", [Name, LocationCode]),
-    NorthData = #north_data{id = LastId, location_code = LocationCode, fields = Fields, timestamp = Timestamp},
-    true = ets:insert(Tid, NorthData),
-    %% 避免不必要的内部消息
-    Actions = case StateName =:= connected andalso FlightNum < WindowSize of
-                  true  -> [{next_event, info, fetch_next}];
-                  false -> []
-              end,
-    {keep_state, State#state{last_id = LastId + 1}, Actions};
-
-%% 触发读取下一条数据
-handle_event(info, fetch_next, connected, State = #state{flight_num = FlightNum, window_size = WindowSize}) when FlightNum >= WindowSize ->
-    {keep_state, State};
-handle_event(info, fetch_next, connected, State = #state{tid = Tid, cursor = Cursor, endpoint = #endpoint{name = Name}, timer_map = TimerMap, flight_num = FlightNum}) ->
-    case ets:next(Tid, Cursor) of
-        '$end_of_table' ->
-            {keep_state, State};
-        NKey ->
-            [NorthData = #north_data{id = Id}] = ets:lookup(Tid, NKey),
-            lager:debug("[iot_endpoint] endpoint: ~p, fetch_next success, north data is: ~p", [Name, NorthData]),
-            case do_post(NorthData, State) of
-                error ->
-                    {keep_state, State};
-                {ok, TimerRef} ->
-                    {keep_state, State#state{timer_map = maps:put(Id, TimerRef, TimerMap), flight_num = FlightNum + 1}}
-            end
-    end;
-
-%% 收到确认消息
-handle_event(info, {ack, Id}, StateName, State = #state{tid = Tid, endpoint = #endpoint{name = Name}, timer_map = TimerMap, acc_num = AccNum, flight_num = FlightNum}) ->
-    true = ets:delete(Tid, Id),
-
-    lager:debug("[iot_endpoint] endpoint: ~p, get ack: ~p, delete from mnesia", [Name, Id]),
-    Actions = case StateName =:= connected of
-                  true  -> [{next_event, info, fetch_next}];
-                  false -> []
-              end,
-    {keep_state, State#state{timer_map = remove_timer(Id, TimerMap), acc_num = AccNum + 1, flight_num = FlightNum - 1}, Actions};
-
-%% 收到重发过期请求
-handle_event(info, {timeout, _, {repost_ticker, NorthData = #north_data{id = Id}}}, connected,
-    State = #state{endpoint = #endpoint{name = Name}, timer_map = TimerMap}) ->
-
-    lager:debug("[iot_endpoint] endpoint: ~p, repost data: ~p", [Name, Id]),
-    case do_post(NorthData, State) of
-        error ->
-            {keep_state, State};
-        {ok, TimerRef} ->
-            {keep_state, State#state{timer_map = maps:put(Id, TimerRef, TimerMap)}}
-    end;
-
-%% todo 离线时，忽略超时逻辑
-handle_event(info, {timeout, _, {repost_ticker, _}}, disconnected, State) ->
-    {keep_state, State};
-
-handle_event(info, {timeout, _, create_postman}, disconnected,
-    State = #state{endpoint = Endpoint = #endpoint{name = Name}, window_size = WindowSize, mod = Mod, mod_state = ModState}) ->
-    lager:debug("[iot_endpoint] endpoint: ~p, create postman", [Name]),
-    case Mod:create_postman(Endpoint, ModState) of
-        {ok, NModState} ->
-            %% 最多允许window_size
-            Actions = lists:map(fun(_) -> {next_event, info, fetch_next} end, lists:seq(1, WindowSize)),
-            {next_state, connected, State#state{endpoint = Endpoint, timer_map = maps:new(), flight_num = 0, mod_state = NModState}, Actions};
-        error ->
-            {keep_state, State}
-    end;
-
-handle_event({call, From}, get_mapper_fun, _, State = #state{endpoint = #endpoint{mapper_fun = F}}) ->
-    {keep_state, State, [{reply, From, F}]};
-
-%% 获取当前统计信息
-handle_event({call, From}, get_stat, StateName, State = #state{acc_num = AccNum, tid = Tid}) ->
-    Stat = #{
-        <<"acc_num">> => AccNum,
-        <<"queue_num">> => ets:info(Tid, size),
-        <<"state_name">> => atom_to_binary(StateName)
-    },
-    {keep_state, State, [{reply, From, Stat}]};
-
-%% postman进程挂掉时，重新建立新的
-handle_event(info, Info, connected, State = #state{endpoint = #endpoint{name = Name}, timer_map = TimerMap, mod = Mod, mod_state = ModState}) ->
-    case Mod:handle_info(Info, ModState) of
-        {} ->
-            ok
-    end,
-
-    lists:foreach(fun({_, TimerRef}) -> catch erlang:cancel_timer(TimerRef) end, maps:to_list(TimerMap)),
-    erlang:start_timer(?RETRY_INTERVAL, self(), create_postman),
-
-    {next_state, disconnected, State#state{timer_map = maps:new()}};
-
-%% @private
-%% @doc If callback_mode is handle_event_function, then whenever a
-%% gen_statem receives an event from call/2, cast/2, or as a normal
-%% process message, this function is called.
-handle_event(EventType, Event, StateName, State) ->
-    lager:warning("[iot_endpoint] unknown message, event_type: ~p, event: ~p, state_name: ~p, state: ~p", [EventType, Event, StateName, State]),
-    {keep_state, State}.
-
-%% @private
-%% @doc This function is called by a gen_statem when it is about to
-%% terminate. It should be the opposite of Module:init/1 and do any
-%% necessary cleaning up. When it returns, the gen_statem terminates with
-%% Reason. The return value is ignored.
-terminate(Reason, _StateName, #state{endpoint = #endpoint{name = Name}, timer_map = TimerMap}) ->
-    lager:debug("[iot_endpoint] endpoint: ~p, terminate with reason: ~p", [Name, Reason]),
-    lists:foreach(fun({_, TimerRef}) -> catch erlang:cancel_timer(TimerRef) end, maps:to_list(TimerMap)),
-    ok.
-
-%% @private
-%% @doc Convert process state when code is changed
-code_change(_OldVsn, StateName, State = #state{}, _Extra) ->
-    {ok, StateName, State}.
-
-%%%===================================================================
-%%% Internal functions
-%%%===================================================================
-
--spec remove_timer(Id :: integer(), TimerMap :: #{}) -> NTimerMap :: #{}.
-remove_timer(Id, TimerMap) when is_integer(Id), is_map(TimerMap) ->
-    case maps:take(Id, TimerMap) of
-        error ->
-            TimerMap;
-        {TimerRef, NTimerMap} ->
-            is_reference(TimerRef) andalso erlang:cancel_timer(TimerRef),
-            NTimerMap
-    end.
-
-%% 对http和https协议的支持
-create_postman(#endpoint{config = #http_endpoint{url = Url, pool_size = PoolSize}}) ->
-    WorkerArgs = [{url, Url}],
-    broker_postman:start_link(http_postman, WorkerArgs, PoolSize);
-
-%% 对mqtt协议的支持, 只需要建立单个链接
-create_postman(#endpoint{name = Name, config = #mqtt_endpoint{host = Host, port = Port, username = Username, password = Password, topic = Topic, qos = Qos}}) ->
-    Node = atom_to_binary(node()),
-    ClientId = <<"mqtt-client-", Node/binary, "-", Name/binary>>,
-    Opts = [
-        {clientid, ClientId},
-        {host, binary_to_list(Host)},
-        {port, Port},
-        {tcp_opts, []},
-        {username, binary_to_list(Username)},
-        {password, binary_to_list(Password)},
-        {keepalive, 86400},
-        {auto_ack, true},
-        {connect_timeout, 5000},
-        {proto_ver, v5},
-        {retry_interval, 5000}
-    ],
-
-    mqtt_postman:start_link(Opts, Topic, Qos);
-
-%% 对mysql协议的支持
-create_postman(#endpoint{config = #mysql_endpoint{host = Host, port = Port, username = Username, password = Password, database = Database, table_name = TableName, pool_size = PoolSize}}) ->
-    WorkerArgs = [
-        {mysql_opts, [
-            {host, binary_to_list(Host)},
-            {port, Port},
-            {user, binary_to_list(Username)},
-            {password, binary_to_list(Password)},
-            {keep_alive, true},
-            {database, binary_to_list(Database)},
-            {queries, [<<"set names utf8">>]}
-        ]},
-        {table, TableName}
-    ],
-    broker_postman:start_link(mysql_postman, WorkerArgs, PoolSize);
-create_postman(#endpoint{}) ->
-    throw(<<"not supported">>).
-
--spec do_post(NorthData :: #north_data{}, State :: #state{}) -> error | {ok, TimerRef :: reference()}.
-do_post(NorthData = #north_data{id = Id, location_code = LocationCode}, #state{tid = Tid, mod = Mod, mod_state = ModState, endpoint = #endpoint{name = Name, mapper_fun = MapperFun}}) ->
-    lager:debug("[iot_endpoint] endpoint: ~p, fetch_next success, north data is: ~p", [Name, NorthData]),
-    case safe_invoke_mapper(MapperFun, NorthData) of
-        {ok, Body} ->
-            Mod:handle_data({Id, LocationCode, Body}, ModState),
-
-            %% 重发机制, 在发送的过程中mapper可能会改变
-            TimerRef = erlang:start_timer(?RETRY_INTERVAL, self(), {repost_ticker, NorthData}),
-            {ok, TimerRef};
-        {error, Error} ->
-            lager:debug("[iot_endpoint] forward endpoint: ~p, mapper get error: ~p, message discard", [Name, Error]),
-            ets:delete(Tid, Id),
-            error;
-        ignore ->
-            lager:debug("[iot_endpoint] forward endpoint: ~p, mapper ignore, messge discard", [Name]),
-            ets:delete(Tid, Id),
-            error
-    end.
-
--spec safe_invoke_mapper(MapperFun :: fun(), NorthData :: #north_data{}) ->
-    {ok, Body :: any()} | ignore | {error, Reason :: any()}.
-safe_invoke_mapper(MapperFun, #north_data{location_code = LocationCode, fields = Fields, timestamp = Timestamp}) ->
-    try
-        if
-            is_function(MapperFun, 2) ->
-                MapperFun(LocationCode, Fields);
-            is_function(MapperFun, 3) ->
-                MapperFun(LocationCode, Fields, Timestamp)
-        end
-    catch _:Error ->
-        {error, Error}
-    end.
-
--spec config_equals(any(), any()) -> boolean().
-config_equals(#http_endpoint{url = Url}, #http_endpoint{url = Url}) ->
-    true;
-config_equals(#ws_endpoint{url = Url}, #ws_endpoint{url = Url}) ->
-    true;
-config_equals(#kafka_endpoint{username = Username, password = Password, bootstrap_servers = BootstrapServers, topic = Topic},
-    #kafka_endpoint{username = Username, password = Password, bootstrap_servers = BootstrapServers, topic = Topic}) ->
-    true;
-config_equals(#mqtt_endpoint{host = Host, port = Port, username = Username, password = Password, topic = Topic, qos = Qos},
-    #mqtt_endpoint{host = Host, port = Port, username = Username, password = Password, topic = Topic, qos = Qos}) ->
-    true;
-config_equals(_, _) ->
-    false.
\ No newline at end of file