fix service config
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22
apps/iot/include/iot_tables.hrl
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22
apps/iot/include/iot_tables.hrl
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@ -0,0 +1,22 @@
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%%%-------------------------------------------------------------------
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%%% @author anlicheng
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%%% @copyright (C) 2025, <COMPANY>
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%%% @doc
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%%%
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%%% @end
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%%% Created : 08. 5月 2025 12:08
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%%%-------------------------------------------------------------------
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-author("anlicheng").
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%% 用来保存微服务的配置
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-record(service_config, {
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service_id :: binary(),
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config_json = <<>> :: binary(),
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%% 保持上一个版本的内容，错误时回滚
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last_config_json = <<>> :: binary(),
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%% 最后一次修改的用户id
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last_edit_user :: integer(),
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%% 状态： 0: 停止, 1: 运行中
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update_ts = 0,
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create_ts = 0
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}).
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52
apps/iot/src/http_handler/service_handler.erl
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apps/iot/src/http_handler/service_handler.erl
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%%%-------------------------------------------------------------------
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%%% @author licheng5
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%%% @copyright (C) 2020, <COMPANY>
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%%% @doc
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%%%
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%%% @end
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%%% Created : 26. 4月 2020 3:36 下午
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%%%-------------------------------------------------------------------
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-module(service_handler).
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-author("licheng5").
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-include("iot.hrl").
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%% API
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-export([handle_request/4]).
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%% helper methods
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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handle_request("POST", "/service/set_config", _, #{<<"service_id">> := ServiceId, <<"config_json">> := ConfigJson, <<"last_edit_user">> := LastEditUser})
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when is_binary(ServiceId), is_binary(ConfigJson), is_integer(LastEditUser) ->
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lager:debug("[service_handler] service_id: ~p, config_json: ~p, last_edit_user:~p", [ServiceId, ConfigJson, LastEditUser]),
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case service_config_model:update(ServiceId, ConfigJson, LastEditUser) of
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ok ->
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{ok, 200, iot_util:json_data(<<"success">>)};
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{error, Reason} ->
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lager:debug("[service_handler] set_config service_id: ~p, get error: ~p", [ServiceId, Reason]),
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{ok, 200, iot_util:json_error(404, <<"set service config failed">>)}
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end;
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handle_request("GET", "/service/get_config", #{<<"service_id">> := ServiceId}, _) when is_binary(ServiceId) ->
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case service_config_model:get_config(ServiceId) of
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error ->
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{ok, 200, iot_util:json_error(404, <<"service config not found">>)};
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{ok, Config} ->
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{ok, 200, iot_util:json_data(service_config_model:as_map(Config))}
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end;
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%% 删除对应的主机信息
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handle_request("POST", "/service/delete", _, #{<<"service_id">> := ServiceId}) when is_binary(ServiceId) ->
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case service_config_model:delete(ServiceId) of
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ok ->
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{ok, 200, iot_util:json_data(<<"success">>)};
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{error, Reason} ->
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lager:debug("[service_handler] delete config of service_id: ~p, error: ~p", [ServiceId, Reason]),
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{ok, 200, iot_util:json_error(404, <<"delete service config errror">>)}
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end;
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handle_request(_, Path, _, _) ->
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Path1 = list_to_binary(Path),
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{ok, 200, iot_util:json_error(-1, <<"url: ", Path1/binary, " not found">>)}.
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@ -14,6 +14,8 @@ start(_StartType, _StartArgs) ->
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io:setopts([{encoding, unicode}]),
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%% 加速内存的回收
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erlang:system_flag(fullsweep_after, 16),
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%% 启动mnesia数据库
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start_mnesia(),
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start_tcp_server(),
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@ -46,4 +48,14 @@ start_tcp_server() ->
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],
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{ok, _} = esockd:open('iot/tcp_server', Port, TransOpts, {tcp_channel, start_link, []}),
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lager:debug("[iot_app] the tcp server start at: ~p", [Port]).
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lager:debug("[iot_app] the tcp server start at: ~p", [Port]).
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%% 启动内存数据库
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start_mnesia() ->
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%% 启动数据库
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ok = mnesia:start(),
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Tables = mnesia:system_info(tables),
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lager:debug("[iot_app] tables: ~p", [Tables]),
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%% 创建数据库表
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not lists:member(service_config, Tables) andalso service_config_model:create_table(),
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ok.
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103
apps/iot/src/mnesia/service_config_model.erl
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103
apps/iot/src/mnesia/service_config_model.erl
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%%%-------------------------------------------------------------------
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%%% @author aresei
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%%% @copyright (C) 2023, <COMPANY>
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%%% @doc
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%%%
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%%% @end
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%%% Created : 04. 7月 2023 12:31
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%%%-------------------------------------------------------------------
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-module(service_config_model).
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-author("aresei").
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-include("iot_tables.hrl").
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-include_lib("stdlib/include/qlc.hrl").
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-define(TAB, service_config).
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%% API
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-export([create_table/0]).
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-export([insert/3, update/3, get_config/1, delete/1]).
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-export([as_map/1]).
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create_table() ->
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%% id生成器
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mnesia:create_table(service_config, [
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{attributes, record_info(fields, service_config)},
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{record_name, service_config},
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{disc_copies, [node()]},
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{type, ordered_set}
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]).
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insert(ServiceId, ConfigJson, LastEditUser) when is_binary(ServiceId), is_binary(ConfigJson), is_integer(LastEditUser) ->
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ServiceConfig = #service_config{
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service_id = ServiceId,
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config_json = ConfigJson,
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last_config_json = <<>>,
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last_edit_user = LastEditUser,
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create_ts = iot_util:current_time(),
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update_ts = iot_util:current_time()
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},
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case mnesia:transaction(fun() -> mnesia:write(?TAB, ServiceConfig, write) end) of
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{'atomic', ok} ->
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ok;
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{'aborted', Reason} ->
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{error, Reason}
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end.
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update(ServiceId, ConfigJson, LastEditUser) when is_binary(ServiceId), is_binary(ConfigJson), is_integer(LastEditUser) ->
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Fun = fun() ->
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case mnesia:read(?TAB, ServiceId, write) of
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[] ->
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ServiceConfig = #service_config{
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service_id = ServiceId,
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config_json = ConfigJson,
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last_config_json = <<>>,
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last_edit_user = LastEditUser,
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create_ts = iot_util:current_time(),
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update_ts = iot_util:current_time()
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},
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mnesia:write(?TAB, ServiceConfig, write);
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[ServiceConfig0 = #service_config{config_json = OldConfigJson}] ->
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NServiceConfig = ServiceConfig0#service_config{
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config_json = ConfigJson,
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last_config_json = OldConfigJson,
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last_edit_user = LastEditUser,
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update_ts = iot_util:current_time()
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},
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mnesia:write(?TAB, NServiceConfig, write)
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end
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end,
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case mnesia:transaction(Fun) of
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{'atomic', ok} ->
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ok;
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{'aborted', Reason} ->
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{error, Reason}
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end.
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-spec get_config(ServiceId :: any()) -> error | {ok, Config :: #service_config{}}.
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get_config(ServiceId) when is_binary(ServiceId) ->
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case mnesia:dirty_read(?TAB, ServiceId) of
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[] ->
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error;
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[Config] ->
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{ok, Config}
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end.
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-spec delete(ServiceId :: binary()) -> ok | {error, Reason :: any()}.
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delete(ServiceId) when is_binary(ServiceId) ->
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case mnesia:transaction(fun() -> mnesia:delete(?TAB, ServiceId, write) end) of
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{'atomic', ok} ->
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ok;
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{'aborted', Reason} ->
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{error, Reason}
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end.
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as_map(#service_config{service_id = ServiceId, config_json = ConfigJson, last_config_json = LastConfigJson, last_edit_user = LastEditUser, update_ts = UpdateTs, create_ts = CreateTs}) ->
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#{
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<<"service_id">> => ServiceId,
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<<"config_json">> => ConfigJson,
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<<"last_config_json">> => LastConfigJson,
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<<"last_edit_user">> => LastEditUser,
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<<"update_ts">> => UpdateTs,
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<<"create_ts">> => CreateTs
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}.
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