diff --git a/apps/emqx_conf/src/emqx_conf.erl b/apps/emqx_conf/src/emqx_conf.erl
index daf9a48a6..64b2a6a8b 100644
--- a/apps/emqx_conf/src/emqx_conf.erl
+++ b/apps/emqx_conf/src/emqx_conf.erl
@@ -17,6 +17,7 @@
 
 -compile({no_auto_import, [get/1, get/2]}).
 -include_lib("emqx/include/logger.hrl").
+-include_lib("hocon/include/hoconsc.hrl").
 
 -export([add_handler/2, remove_handler/1]).
 -export([get/1, get/2, get_raw/2, get_all/1]).
@@ -124,14 +125,13 @@ reset(Node, KeyPath, Opts) ->
 %% @doc Called from build script.
 -spec dump_schema(file:name_all()) -> ok.
 dump_schema(Dir) ->
-    SchemaJsonFile = filename:join([Dir, "schema.json"]),
-    JsonMap = hocon_schema_json:gen(emqx_conf_schema),
-    IoData = jsx:encode(JsonMap, [space, {indent, 4}]),
-    io:format(user, "===< Generating: ~s~n", [SchemaJsonFile]),
-    ok = file:write_file(SchemaJsonFile, IoData),
     SchemaMarkdownFile = filename:join([Dir, "config.md"]),
     io:format(user, "===< Generating: ~s~n", [SchemaMarkdownFile ]),
-    ok = gen_doc(SchemaMarkdownFile).
+    ok = gen_doc(SchemaMarkdownFile),
+    SchemaJsonFile = filename:join([Dir, "schema.json"]),
+    io:format(user, "===< Generating: ~s~n", [SchemaJsonFile]),
+    ok = gen_hot_conf_schema(SchemaJsonFile),
+    ok.
 
 %%--------------------------------------------------------------------
 %% Internal functions
@@ -158,3 +158,159 @@ check_cluster_rpc_result(Result) ->
         {error, Error} -> %% all MFA return not ok or {ok, term()}.
             Error
     end.
+
+%% Only gen hot_conf schema, not all configuration fields.
+gen_hot_conf_schema(File) ->
+    {ApiSpec0, Components0} = emqx_dashboard_swagger:spec(emqx_mgmt_api_configs,
+        #{schema_to_spec_func => fun hocon_schema_to_spec/2}),
+    ApiSpec = lists:foldl(fun({Path, Spec, _, _}, Acc) ->
+        NewSpec = maps:fold(fun(Method, #{responses := Responses}, SubAcc) ->
+            case Responses of
+                #{<<"200">> :=
+                    #{<<"content">> := #{<<"application/json">> := #{<<"schema">> := Schema}}}} ->
+                    SubAcc#{Method => Schema};
+                _ -> SubAcc
+            end
+                            end, #{}, Spec),
+        Acc#{list_to_atom(Path) => NewSpec} end, #{}, ApiSpec0),
+    Components = lists:foldl(fun(M, Acc) -> maps:merge(M, Acc) end, #{}, Components0),
+    IoData = jsx:encode(#{
+        info => #{title => <<"EMQX Hot Conf Schema">>, version => <<"0.1.0">>},
+        paths => ApiSpec,
+        components => #{schemas => Components}
+    }, [space, {indent, 4}]),
+    file:write_file(File, IoData).
+
+-define(INIT_SCHEMA, #{fields => #{}, translations => #{},
+    validations => [], namespace => undefined}).
+
+-define(TO_REF(_N_, _F_), iolist_to_binary([to_bin(_N_), ".", to_bin(_F_)])).
+-define(TO_COMPONENTS_SCHEMA(_M_, _F_), iolist_to_binary([<<"#/components/schemas/">>,
+    ?TO_REF(emqx_dashboard_swagger:namespace(_M_), _F_)])).
+-define(TO_COMPONENTS_PARAM(_M_, _F_), iolist_to_binary([<<"#/components/parameters/">>,
+    ?TO_REF(emqx_dashboard_swagger:namespace(_M_), _F_)])).
+
+hocon_schema_to_spec(?R_REF(Module, StructName), _LocalModule) ->
+    {#{<<"$ref">> => ?TO_COMPONENTS_SCHEMA(Module, StructName)},
+        [{Module, StructName}]};
+hocon_schema_to_spec(?REF(StructName), LocalModule) ->
+    {#{<<"$ref">> => ?TO_COMPONENTS_SCHEMA(LocalModule, StructName)},
+        [{LocalModule, StructName}]};
+hocon_schema_to_spec(Type, LocalModule) when ?IS_TYPEREFL(Type) ->
+    {typename_to_spec(typerefl:name(Type), LocalModule), []};
+hocon_schema_to_spec(?ARRAY(Item), LocalModule) ->
+    {Schema, Refs} = hocon_schema_to_spec(Item, LocalModule),
+    {#{type => array, items => Schema}, Refs};
+hocon_schema_to_spec(?LAZY(Item), LocalModule) ->
+    hocon_schema_to_spec(Item, LocalModule);
+hocon_schema_to_spec(?ENUM(Items), _LocalModule) ->
+    {#{type => enum, symbols => Items}, []};
+hocon_schema_to_spec(?MAP(Name, Type), LocalModule) ->
+    {Schema, SubRefs} = hocon_schema_to_spec(Type, LocalModule),
+    {#{<<"type">> => object,
+        <<"properties">> => #{<<"$", (to_bin(Name))/binary>> => Schema}},
+        SubRefs};
+hocon_schema_to_spec(?UNION(Types), LocalModule) ->
+    {OneOf, Refs} = lists:foldl(fun(Type, {Acc, RefsAcc}) ->
+        {Schema, SubRefs} = hocon_schema_to_spec(Type, LocalModule),
+        {[Schema | Acc], SubRefs ++ RefsAcc}
+                                end, {[], []}, Types),
+    {#{<<"oneOf">> => OneOf}, Refs};
+hocon_schema_to_spec(Atom, _LocalModule) when is_atom(Atom) ->
+    {#{type => enum, symbols => [Atom]}, []}.
+
+typename_to_spec("user_id_type()", _Mod) -> #{type => enum, symbols => [clientid, username]};
+typename_to_spec("term()", _Mod) -> #{type => string};
+typename_to_spec("boolean()", _Mod) -> #{type => boolean};
+typename_to_spec("binary()", _Mod) -> #{type => string};
+typename_to_spec("float()", _Mod) -> #{type => number};
+typename_to_spec("integer()", _Mod) -> #{type => integer};
+typename_to_spec("non_neg_integer()", _Mod) -> #{type => integer, minimum => 1};
+typename_to_spec("number()", _Mod) -> #{type => number};
+typename_to_spec("string()", _Mod) -> #{type => string};
+typename_to_spec("atom()", _Mod) -> #{type => string};
+
+typename_to_spec("duration()", _Mod) -> #{type => duration};
+typename_to_spec("duration_s()", _Mod) -> #{type => duration};
+typename_to_spec("duration_ms()", _Mod) -> #{type => duration};
+typename_to_spec("percent()", _Mod) -> #{type => percent};
+typename_to_spec("file()", _Mod) -> #{type => file};
+typename_to_spec("ip_port()", _Mod) -> #{type => ip_port};
+typename_to_spec("url()", _Mod) -> #{type => url};
+typename_to_spec("bytesize()", _Mod) -> #{type => byteSize};
+typename_to_spec("wordsize()", _Mod) -> #{type => byteSize};
+typename_to_spec("qos()", _Mod) -> #{type => enum, symbols => [0, 1, 2]};
+typename_to_spec("comma_separated_list()", _Mod) -> #{type => comma_separated_string};
+typename_to_spec("comma_separated_atoms()", _Mod) -> #{type => comma_separated_string};
+typename_to_spec("pool_type()", _Mod) -> #{type => enum, symbols => [random, hash]};
+typename_to_spec("log_level()", _Mod) ->
+    #{type => enum, symbols => [debug, info, notice, warning, error, critical, alert, emergency, all]};
+typename_to_spec("rate()", _Mod) -> #{type => string};
+typename_to_spec("capacity()", _Mod) -> #{type => string};
+typename_to_spec("burst_rate()", _Mod) -> #{type => string};
+typename_to_spec("failure_strategy()", _Mod) -> #{type => enum, symbols => [force, drop, throw]};
+typename_to_spec("initial()", _Mod) -> #{type => string};
+typename_to_spec(Name, Mod) ->
+    Spec = range(Name),
+    Spec1 = remote_module_type(Spec, Name, Mod),
+    Spec2 = typerefl_array(Spec1, Name, Mod),
+    Spec3 = integer(Spec2, Name),
+    default_type(Spec3).
+
+default_type(nomatch) -> #{type => string};
+default_type(Type) -> Type.
+
+range(Name) ->
+    case string:split(Name, "..") of
+        [MinStr, MaxStr] -> %% 1..10 1..inf -inf..10
+            Schema = #{type => integer},
+            Schema1 = add_integer_prop(Schema, minimum, MinStr),
+            add_integer_prop(Schema1, maximum, MaxStr);
+        _ -> nomatch
+    end.
+
+%% Module:Type
+remote_module_type(nomatch, Name, Mod) ->
+    case string:split(Name, ":") of
+        [_Module, Type] -> typename_to_spec(Type, Mod);
+        _ -> nomatch
+    end;
+remote_module_type(Spec, _Name, _Mod) -> Spec.
+
+%% [string()] or [integer()] or [xxx].
+typerefl_array(nomatch, Name, Mod) ->
+    case string:trim(Name, leading, "[") of
+        Name -> nomatch;
+        Name1 ->
+            case string:trim(Name1, trailing, "]") of
+                Name1 -> notmatch;
+                Name2 ->
+                    Schema = typename_to_spec(Name2, Mod),
+                    #{type => array, items => Schema}
+            end
+    end;
+typerefl_array(Spec, _Name, _Mod) -> Spec.
+
+%% integer(1)
+integer(nomatch, Name) ->
+    case string:to_integer(Name) of
+        {Int, []} -> #{type => enum, symbols => [Int], default => Int};
+        _ -> nomatch
+    end;
+integer(Spec, _Name) -> Spec.
+
+add_integer_prop(Schema, Key, Value) ->
+    case string:to_integer(Value) of
+        {error, no_integer} -> Schema;
+        {Int, []}when Key =:= minimum -> Schema#{Key => Int};
+        {Int, []} -> Schema#{Key => Int}
+    end.
+
+to_bin(List) when is_list(List) ->
+    case io_lib:printable_list(List) of
+        true -> unicode:characters_to_binary(List);
+        false -> List
+    end;
+to_bin(Boolean) when is_boolean(Boolean) -> Boolean;
+to_bin(Atom) when is_atom(Atom) -> atom_to_binary(Atom, utf8);
+to_bin(X) -> X.
diff --git a/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl b/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl
index 768c85bb6..f0b67dab8 100644
--- a/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl
+++ b/apps/emqx_dashboard/src/emqx_dashboard_swagger.erl
@@ -21,21 +21,21 @@
 
 %% API
 -export([spec/1, spec/2]).
--export([namespace/0, fields/1]).
+-export([namespace/0, namespace/1, fields/1]).
 -export([schema_with_example/2, schema_with_examples/2]).
 -export([error_codes/1, error_codes/2]).
 
 -export([filter_check_request/2, filter_check_request_and_translate_body/2]).
 
 -ifdef(TEST).
--export([ parse_spec_ref/2
-        , components/1
+-export([ parse_spec_ref/3
+        , components/2
         ]).
 -endif.
 
 -define(METHODS, [get, post, put, head, delete, patch, options, trace]).
 
--define(DEFAULT_FIELDS, [example, allowReserved, style, format,
+-define(DEFAULT_FIELDS, [example, allowReserved, style, format, readOnly,
     explode, maxLength, allowEmptyValue, deprecated, minimum, maximum]).
 
 -define(INIT_SCHEMA, #{fields => #{}, translations => #{},
@@ -79,12 +79,12 @@ spec(Module, Options) ->
     Paths = apply(Module, paths, []),
     {ApiSpec, AllRefs} =
         lists:foldl(fun(Path, {AllAcc, AllRefsAcc}) ->
-            {OperationId, Specs, Refs} = parse_spec_ref(Module, Path),
+            {OperationId, Specs, Refs} = parse_spec_ref(Module, Path, Options),
             CheckSchema = support_check_schema(Options),
             {[{filename:join("/", Path), Specs, OperationId, CheckSchema} | AllAcc],
                     Refs ++ AllRefsAcc}
                     end, {[], []}, Paths),
-    {ApiSpec, components(lists:usort(AllRefs))}.
+    {ApiSpec, components(lists:usort(AllRefs), Options)}.
 
 -spec(namespace() -> hocon_schema:name()).
 namespace() -> "public".
@@ -162,7 +162,7 @@ support_check_schema(#{check_schema := Filter}) when is_function(Filter, 2) ->
 support_check_schema(_) ->
     #{filter => undefined}.
 
-parse_spec_ref(Module, Path) ->
+parse_spec_ref(Module, Path, Options) ->
     Schema =
         try
             erlang:apply(Module, schema, [Path])
@@ -172,7 +172,7 @@ parse_spec_ref(Module, Path) ->
     {Specs, Refs} = maps:fold(fun(Method, Meta, {Acc, RefsAcc}) ->
         (not lists:member(Method, ?METHODS))
             andalso throw({error, #{module => Module, path => Path, method => Method}}),
-        {Spec, SubRefs} = meta_to_spec(Meta, Module),
+        {Spec, SubRefs} = meta_to_spec(Meta, Module, Options),
         {Acc#{Method => Spec}, SubRefs ++ RefsAcc}
                               end, {#{}, []},
         maps:without(['operationId'], Schema)),
@@ -239,10 +239,10 @@ check_request_body(#{body := Body}, Spec, _Module, _CheckFun, false)when is_map(
     Body.
 
 %% tags, description, summary, security, deprecated
-meta_to_spec(Meta, Module) ->
+meta_to_spec(Meta, Module, Options) ->
     {Params, Refs1} = parameters(maps:get(parameters, Meta, []), Module),
     {RequestBody, Refs2} = request_body(maps:get('requestBody', Meta, []), Module),
-    {Responses, Refs3} = responses(maps:get(responses, Meta, #{}), Module),
+    {Responses, Refs3} = responses(maps:get(responses, Meta, #{}), Module, Options),
     {
         to_spec(Meta, Params, RequestBody, Responses),
         lists:usort(Refs1 ++ Refs2 ++ Refs3)
@@ -317,28 +317,29 @@ request_body(Schema, Module) ->
                 HoconSchema = hocon_schema:field_schema(Schema, type),
                 SchemaExamples = hocon_schema:field_schema(Schema, examples),
                 {hocon_schema_to_spec(HoconSchema, Module), SchemaExamples};
-            false -> {parse_object(Schema, Module), undefined}
+            false -> {parse_object(Schema, Module, #{}), undefined}
         end,
     {#{<<"content">> => content(Props, Examples)},
         Refs}.
 
-responses(Responses, Module) ->
-    {Spec, Refs, _} = maps:fold(fun response/3, {#{}, [], Module}, Responses),
+responses(Responses, Module, Options) ->
+    {Spec, Refs, _, _} = maps:fold(fun response/3, {#{}, [], Module, Options}, Responses),
     {Spec, Refs}.
 
-response(Status, Bin, {Acc, RefsAcc, Module}) when is_binary(Bin) ->
-    {Acc#{integer_to_binary(Status) => #{description => Bin}}, RefsAcc, Module};
+response(Status, Bin, {Acc, RefsAcc, Module, Options}) when is_binary(Bin) ->
+    {Acc#{integer_to_binary(Status) => #{description => Bin}}, RefsAcc, Module, Options};
 %% Support swagger raw object(file download).
 %% TODO: multi type response(i.e. Support both 'application/json' and 'plain/text')
-response(Status, #{content := _} = Content, {Acc, RefsAcc, Module}) ->
-    {Acc#{integer_to_binary(Status) => Content}, RefsAcc, Module};
-response(Status, ?REF(StructName), {Acc, RefsAcc, Module}) ->
-    response(Status, ?R_REF(Module, StructName), {Acc, RefsAcc, Module});
-response(Status, ?R_REF(_Mod, _Name) = RRef, {Acc, RefsAcc, Module}) ->
-    {Spec, Refs} = hocon_schema_to_spec(RRef, Module),
+response(Status, #{content := _} = Content, {Acc, RefsAcc, Module, Options}) ->
+    {Acc#{integer_to_binary(Status) => Content}, RefsAcc, Module, Options};
+response(Status, ?REF(StructName), {Acc, RefsAcc, Module, Options}) ->
+    response(Status, ?R_REF(Module, StructName), {Acc, RefsAcc, Module, Options});
+response(Status, ?R_REF(_Mod, _Name) = RRef, {Acc, RefsAcc, Module, Options}) ->
+    SchemaToSpec = schema_to_spec_func(Options),
+    {Spec, Refs} = SchemaToSpec(RRef, Module),
     Content = content(Spec),
-    {Acc#{integer_to_binary(Status) => #{<<"content">> => Content}}, Refs ++ RefsAcc, Module};
-response(Status, Schema, {Acc, RefsAcc, Module}) ->
+    {Acc#{integer_to_binary(Status) => #{<<"content">> => Content}}, Refs ++ RefsAcc, Module, Options};
+response(Status, Schema, {Acc, RefsAcc, Module, Options}) ->
     case hoconsc:is_schema(Schema) of
         true ->
             Hocon = hocon_schema:field_schema(Schema, type),
@@ -348,33 +349,34 @@ response(Status, Schema, {Acc, RefsAcc, Module}) ->
             Content = content(Spec, Examples),
             {
                 Acc#{integer_to_binary(Status) => Init#{<<"content">> => Content}},
-                    Refs ++ RefsAcc, Module
+                    Refs ++ RefsAcc, Module, Options
             };
         false ->
-            {Props, Refs} = parse_object(Schema, Module),
-            Content = #{<<"content">> => content(Props)},
-            {Acc#{integer_to_binary(Status) => Content}, Refs ++ RefsAcc, Module}
+            {Props, Refs} = parse_object(Schema, Module, Options),
+            Init = trans_desc(#{}, Schema),
+            Content = Init#{<<"content">> => content(Props)},
+            {Acc#{integer_to_binary(Status) => Content}, Refs ++ RefsAcc, Module, Options}
     end.
 
-components(Refs) ->
+components(Refs, Options) ->
     lists:sort(maps:fold(fun(K, V, Acc) -> [#{K => V} | Acc] end, [],
-        components(Refs, #{}, []))).
+        components(Options, Refs, #{}, []))).
 
-components([], SpecAcc, []) -> SpecAcc;
-components([], SpecAcc, SubRefAcc) -> components(SubRefAcc, SpecAcc, []);
-components([{Module, Field} | Refs], SpecAcc, SubRefsAcc) ->
+components(_Options, [], SpecAcc, []) -> SpecAcc;
+components(Options, [], SpecAcc, SubRefAcc) -> components(Options, SubRefAcc, SpecAcc, []);
+components(Options, [{Module, Field} | Refs], SpecAcc, SubRefsAcc) ->
     Props = hocon_schema_fields(Module, Field),
     Namespace = namespace(Module),
-    {Object, SubRefs} = parse_object(Props, Module),
+    {Object, SubRefs} = parse_object(Props, Module, Options),
     NewSpecAcc = SpecAcc#{?TO_REF(Namespace, Field) => Object},
-    components(Refs, NewSpecAcc, SubRefs ++ SubRefsAcc);
+    components(Options, Refs, NewSpecAcc, SubRefs ++ SubRefsAcc);
 %% parameters in ref only have one value, not array
-components([{Module, Field, parameter} | Refs], SpecAcc, SubRefsAcc) ->
+components(Options, [{Module, Field, parameter} | Refs], SpecAcc, SubRefsAcc) ->
     Props = hocon_schema_fields(Module, Field),
     {[Param], SubRefs} = parameters(Props, Module),
     Namespace = namespace(Module),
     NewSpecAcc = SpecAcc#{?TO_REF(Namespace, Field) => Param},
-    components(Refs, NewSpecAcc, SubRefs ++ SubRefsAcc).
+    components(Options, Refs, NewSpecAcc, SubRefs ++ SubRefsAcc).
 
 hocon_schema_fields(Module, StructName) ->
     case apply(Module, fields, [StructName]) of
@@ -546,7 +548,7 @@ to_bin(Boolean) when is_boolean(Boolean) -> Boolean;
 to_bin(Atom) when is_atom(Atom) -> atom_to_binary(Atom, utf8);
 to_bin(X) -> X.
 
-parse_object(PropList = [_ | _], Module) when is_list(PropList) ->
+parse_object(PropList = [_ | _], Module, Options) when is_list(PropList) ->
     {Props, Required, Refs} =
         lists:foldl(fun({Name, Hocon}, {Acc, RequiredAcc, RefsAcc}) ->
             NameBin = to_bin(Name),
@@ -555,7 +557,8 @@ parse_object(PropList = [_ | _], Module) when is_list(PropList) ->
                     HoconType = hocon_schema:field_schema(Hocon, type),
                     Init0 = init_prop([default | ?DEFAULT_FIELDS], #{}, Hocon),
                     Init = trans_desc(Init0, Hocon),
-                    {Prop, Refs1} = hocon_schema_to_spec(HoconType, Module),
+                    SchemaToSpec = schema_to_spec_func(Options),
+                    {Prop, Refs1} = SchemaToSpec(HoconType, Module),
                     NewRequiredAcc =
                         case is_required(Hocon) of
                             true -> [NameBin | RequiredAcc];
@@ -563,7 +566,7 @@ parse_object(PropList = [_ | _], Module) when is_list(PropList) ->
                         end,
                     {[{NameBin, maps:merge(Prop, Init)} | Acc], NewRequiredAcc, Refs1 ++ RefsAcc};
                 false ->
-                    {SubObject, SubRefs} = parse_object(Hocon, Module),
+                    {SubObject, SubRefs} = parse_object(Hocon, Module, Options),
                     {[{NameBin, SubObject} | Acc], RequiredAcc, SubRefs ++ RefsAcc}
             end
                     end, {[], [], []}, PropList),
@@ -572,10 +575,10 @@ parse_object(PropList = [_ | _], Module) when is_list(PropList) ->
         [] -> {Object, Refs};
         _ -> {maps:put(required, Required, Object), Refs}
     end;
-parse_object(Other, Module) ->
+parse_object(Other, Module, Options) ->
     erlang:throw({error,
         #{msg => <<"Object only supports not empty proplists">>,
-            args => Other, module => Module}}).
+            args => Other, module => Module, options => Options}}).
 
 is_required(Hocon) ->
     hocon_schema:field_schema(Hocon, required) =:= true orelse
@@ -592,3 +595,6 @@ content(ApiSpec, Examples) when is_map(Examples) ->
 to_ref(Mod, StructName, Acc, RefsAcc) ->
     Ref = #{<<"$ref">> => ?TO_COMPONENTS_PARAM(Mod, StructName)},
     {[Ref | Acc], [{Mod, StructName, parameter} | RefsAcc]}.
+
+schema_to_spec_func(Options) ->
+    maps:get(schema_to_spec_func, Options, fun hocon_schema_to_spec/2).
diff --git a/apps/emqx_dashboard/test/emqx_swagger_parameter_SUITE.erl b/apps/emqx_dashboard/test/emqx_swagger_parameter_SUITE.erl
index c47c91d9c..1ae2e2e1f 100644
--- a/apps/emqx_dashboard/test/emqx_swagger_parameter_SUITE.erl
+++ b/apps/emqx_dashboard/test/emqx_swagger_parameter_SUITE.erl
@@ -50,8 +50,8 @@ t_ref(_Config) ->
     LocalPath = "/test/in/ref/local",
     Path = "/test/in/ref",
     Expect = [#{<<"$ref">> => <<"#/components/parameters/emqx_swagger_parameter_SUITE.page">>}],
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path),
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, LocalPath),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{}),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, LocalPath, #{}),
     ?assertEqual(test, OperationId),
     Params = maps:get(parameters, maps:get(post, Spec)),
     ?assertEqual(Expect, Params),
@@ -64,7 +64,7 @@ t_public_ref(_Config) ->
         #{<<"$ref">> => <<"#/components/parameters/public.page">>},
         #{<<"$ref">> => <<"#/components/parameters/public.limit">>}
         ],
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{}),
     ?assertEqual(test, OperationId),
     Params = maps:get(parameters, maps:get(post, Spec)),
     ?assertEqual(Expect, Params),
@@ -80,7 +80,7 @@ t_public_ref(_Config) ->
         #{<<"public.page">> => #{description => <<"Page number of the results to fetch.">>,
             example => 1,in => query,name => page,
             schema => #{default => 1,example => 100,type => integer}}}],
-    ?assertEqual(ExpectRefs, emqx_dashboard_swagger:components(Refs)),
+    ?assertEqual(ExpectRefs, emqx_dashboard_swagger:components(Refs,#{})),
     ok.
 
 t_in_mix(_Config) ->
@@ -110,7 +110,7 @@ t_in_mix(_Config) ->
 
 t_without_in(_Config) ->
     ?assertThrow({error, <<"missing in:path/query field in parameters">>},
-        emqx_dashboard_swagger:parse_spec_ref(?MODULE, "/test/without/in")),
+        emqx_dashboard_swagger:parse_spec_ref(?MODULE, "/test/without/in", #{})),
     ok.
 
 t_require(_Config) ->
@@ -133,10 +133,10 @@ t_nullable(_Config) ->
 t_method(_Config) ->
     PathOk = "/method/ok",
     PathError = "/method/error",
-    {test, Spec, []} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, PathOk),
+    {test, Spec, []} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, PathOk, #{}),
     ?assertEqual(lists:sort(?METHODS), lists:sort(maps:keys(Spec))),
     ?assertThrow({error, #{module := ?MODULE, path := PathError, method := bar}},
-        emqx_dashboard_swagger:parse_spec_ref(?MODULE, PathError)),
+        emqx_dashboard_swagger:parse_spec_ref(?MODULE, PathError, #{})),
     ok.
 
 t_in_path_trans(_Config) ->
@@ -242,7 +242,7 @@ assert_all_filters_equal(Spec, Filter) ->
         Spec).
 
 validate(Path, ExpectParams) ->
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{}),
     ?assertEqual(test, OperationId),
     Params = maps:get(parameters, maps:get(post, Spec)),
     ?assertEqual(ExpectParams, Params),
diff --git a/apps/emqx_dashboard/test/emqx_swagger_requestBody_SUITE.erl b/apps/emqx_dashboard/test/emqx_swagger_requestBody_SUITE.erl
index 84cac6229..1c155fde9 100644
--- a/apps/emqx_dashboard/test/emqx_swagger_requestBody_SUITE.erl
+++ b/apps/emqx_dashboard/test/emqx_swagger_requestBody_SUITE.erl
@@ -151,7 +151,7 @@ t_nest_ref(_Config) ->
 t_none_ref(_Config) ->
     Path = "/ref/none",
     ?assertThrow({error, #{mfa := {?MODULE, schema, [Path]}}},
-        emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path)),
+        emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{})),
     ok.
 
 t_sub_fields(_Config) ->
@@ -472,11 +472,11 @@ t_object_trans_error(_Config) ->
     ok.
 
 validate(Path, ExpectSpec, ExpectRefs) ->
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{}),
     ?assertEqual(test, OperationId),
     ?assertEqual(ExpectSpec, Spec),
     ?assertEqual(ExpectRefs, Refs),
-    {Spec, emqx_dashboard_swagger:components(Refs)}.
+    {Spec, emqx_dashboard_swagger:components(Refs, #{})}.
 
 
 filter(ApiSpec, Path) ->
diff --git a/apps/emqx_dashboard/test/emqx_swagger_response_SUITE.erl b/apps/emqx_dashboard/test/emqx_swagger_response_SUITE.erl
index be27b954e..ca6ea97cc 100644
--- a/apps/emqx_dashboard/test/emqx_swagger_response_SUITE.erl
+++ b/apps/emqx_dashboard/test/emqx_swagger_response_SUITE.erl
@@ -69,7 +69,7 @@ t_error(_Config) ->
             {<<"message">>, #{description => <<"Details description of the error.">>,
                 example => <<"Error code to troubleshoot problems.">>, type => string}}]
     }}}},
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{}),
     ?assertEqual(test, OperationId),
     Response = maps:get(responses, maps:get(get, Spec)),
     ?assertEqual(Error400, maps:get(<<"400">>, Response)),
@@ -197,7 +197,7 @@ t_complicated_type(_Config) ->
         {<<"fix_integer">>, #{default => 100, enum => [100], example => 100,type => integer}}
     ],
         <<"type">> => object}}}},
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{}),
     ?assertEqual(test, OperationId),
     Response = maps:get(responses, maps:get(post, Spec)),
     ?assertEqual(Object, maps:get(<<"200">>, Response)),
@@ -379,14 +379,14 @@ schema("/fields/sub") ->
     to_schema(hoconsc:ref(sub_fields)).
 
 validate(Path, ExpectObject, ExpectRefs) ->
-    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path),
+    {OperationId, Spec, Refs} = emqx_dashboard_swagger:parse_spec_ref(?MODULE, Path, #{}),
     ?assertEqual(test, OperationId),
     Response = maps:get(responses, maps:get(post, Spec)),
     ?assertEqual(ExpectObject, maps:get(<<"200">>, Response)),
     ?assertEqual(ExpectObject, maps:get(<<"201">>, Response)),
     ?assertEqual(#{}, maps:without([<<"201">>, <<"200">>], Response)),
     ?assertEqual(ExpectRefs, Refs),
-    {Spec, emqx_dashboard_swagger:components(Refs)}.
+    {Spec, emqx_dashboard_swagger:components(Refs, #{})}.
 
 to_schema(Object) ->
     #{
diff --git a/apps/emqx_management/src/emqx_mgmt_api_configs.erl b/apps/emqx_management/src/emqx_mgmt_api_configs.erl
index 75496b685..827f6e913 100644
--- a/apps/emqx_management/src/emqx_mgmt_api_configs.erl
+++ b/apps/emqx_management/src/emqx_mgmt_api_configs.erl
@@ -19,7 +19,7 @@
 -include_lib("hocon/include/hoconsc.hrl").
 -behaviour(minirest_api).
 
--export([api_spec/0]).
+-export([api_spec/0, namespace/0]).
 -export([paths/0, schema/1, fields/1]).
 
 -export([config/3, config_reset/3, configs/3, get_full_config/0]).
@@ -29,15 +29,31 @@
 -define(PREFIX, "/configs/").
 -define(PREFIX_RESET, "/configs_reset/").
 -define(ERR_MSG(MSG), list_to_binary(io_lib:format("~p", [MSG]))).
--define(EXCLUDES, [listeners, node, cluster, gateway, rule_engine]).
+-define(EXCLUDES, [
+    exhook,
+    gateway,
+    plugins,
+    bridges,
+    "rule_engine",
+    "authorization",
+    "authentication",
+    "rpc",
+    "db",
+    "connectors",
+    "slow_subs",
+    "psk_authentication"
+]).
 
 api_spec() ->
     emqx_dashboard_swagger:spec(?MODULE).
 
+namespace() -> "configuration".
+
 paths() ->
     ["/configs", "/configs_reset/:rootname"] ++
     lists:map(fun({Name, _Type}) -> ?PREFIX ++ to_list(Name) end, config_list(?EXCLUDES)).
 
+
 schema("/configs") ->
     #{
         'operationId' => configs,
@@ -189,7 +205,7 @@ conf_path_from_querystr(Req) ->
 
 config_list(Exclude) ->
     Roots = emqx_conf_schema:roots(),
-    lists:foldl(fun(Key, Acc) -> lists:delete(Key, Acc) end, Roots, Exclude).
+    lists:foldl(fun(Key, Acc) -> lists:keydelete(Key, 1, Acc) end, Roots, Exclude).
 
 to_list(L) when is_list(L) -> L;
 to_list(Atom) when is_atom(Atom) -> atom_to_list(Atom).