refactor: fields `meta` ref to dashboard_swagger

apps/emqx_authn/src/emqx_authn_api.erl

@@ -24,7 +24,7 @@
 -include_lib("emqx/include/logger.hrl").
 -include_lib("emqx/include/emqx_authentication.hrl").
 
--import(hoconsc, [mk/2, ref/1]).
+-import(hoconsc, [mk/2, ref/1, ref/2]).
 -import(emqx_dashboard_swagger, [error_codes/2]).
 
 -define(BAD_REQUEST, 'BAD_REQUEST').
@@ -146,13 +146,7 @@ fields(response_user) ->
         {is_superuser, mk(boolean(), #{default => false, required => false})}
     ];
 fields(response_users) ->
-    paginated_list_type(ref(response_user));
-fields(pagination_meta) ->
-    [
-        {page, pos_integer()},
-        {limit, pos_integer()},
-        {count, non_neg_integer()}
-    ].
+    paginated_list_type(ref(response_user)).
 
 schema("/authentication") ->
     #{
@@ -1316,7 +1310,7 @@ binfmt(Fmt, Args) -> iolist_to_binary(io_lib:format(Fmt, Args)).
 paginated_list_type(Type) ->
     [
         {data, hoconsc:array(Type)},
-        {meta, ref(pagination_meta)}
+        {meta, ref(emqx_dashboard_swagger, meta)}
     ].
 
 authenticator_array_example() ->

apps/emqx_authz/src/emqx_authz_api_mnesia.erl

@@ -383,7 +383,7 @@ fields(rules_for_username) ->
 fields(username_response_data) ->
     [
         {data, mk(array(ref(rules_for_username)), #{})},
-        {meta, ref(meta)}
+        {meta, ref(emqx_dashboard_swagger, meta)}
     ];
 fields(rules_for_clientid) ->
     fields(rules) ++
@@ -391,14 +391,10 @@ fields(rules_for_clientid) ->
 fields(clientid_response_data) ->
     [
         {data, mk(array(ref(rules_for_clientid)), #{})},
-        {meta, ref(meta)}
+        {meta, ref(emqx_dashboard_swagger, meta)}
     ];
 fields(rules) ->
-    [{rules, mk(array(ref(rule_item)))}];
-fields(meta) ->
-    emqx_dashboard_swagger:fields(page) ++
-        emqx_dashboard_swagger:fields(limit) ++
-        [{count, mk(integer(), #{example => 1})}].
+    [{rules, mk(array(ref(rule_item)))}].
 
 %%--------------------------------------------------------------------
 %% HTTP API

apps/emqx_dashboard/src/emqx_dashboard_swagger.erl

@@ -135,7 +135,12 @@ fields(limit) ->
         <<")">>
     ]),
     Meta = #{in => query, desc => Desc, default => ?DEFAULT_ROW, example => 50},
-    [{limit, hoconsc:mk(range(1, ?MAX_ROW_LIMIT), Meta)}].
+    [{limit, hoconsc:mk(range(1, ?MAX_ROW_LIMIT), Meta)}];
+fields(count) ->
+    Meta = #{desc => <<"Results count.">>, required => true},
+    [{count, hoconsc:mk(range(0, inf), Meta)}];
+fields(meta) ->
+    fields(page) ++ fields(limit) ++ fields(count).
 
 -spec schema_with_example(hocon_schema:type(), term()) -> hocon_schema:field_schema_map().
 schema_with_example(Type, Example) ->

apps/emqx_management/src/emqx_mgmt_api_alarms.erl

@@ -53,7 +53,7 @@ schema("/alarms") ->
             responses => #{
                 200 => [
                     {data, hoconsc:mk(hoconsc:array(hoconsc:ref(?MODULE, alarm)), #{})},
-                    {meta, hoconsc:mk(hoconsc:ref(?MODULE, meta), #{})}
+                    {meta, hoconsc:mk(hoconsc:ref(emqx_dashboard_swagger, meta), #{})}
                 ]
             }
         },
@@ -98,11 +98,8 @@ fields(alarm) ->
                 desc => ?DESC(deactivate_at),
                 example => <<"2021-10-31T10:52:52.548+08:00">>
             })}
-    ];
-fields(meta) ->
-    emqx_dashboard_swagger:fields(page) ++
-        emqx_dashboard_swagger:fields(limit) ++
-        [{count, hoconsc:mk(integer(), #{example => 1})}].
+    ].
+
 %%%==============================================================================================
 %% parameters trans
 alarms(get, #{query_string := QString}) ->

apps/emqx_management/src/emqx_mgmt_api_banned.erl

@@ -62,7 +62,7 @@ schema("/banned") ->
             responses => #{
                 200 => [
                     {data, hoconsc:mk(hoconsc:array(hoconsc:ref(ban)), #{})},
-                    {meta, hoconsc:mk(hoconsc:ref(meta), #{})}
+                    {meta, hoconsc:mk(hoconsc:ref(emqx_dashboard_swagger, meta), #{})}
                 ]
             }
         },
@@ -147,11 +147,7 @@ fields(ban) ->
                 required => false,
                 example => <<"2021-10-25T21:53:47+08:00">>
             })}
-    ];
-fields(meta) ->
-    emqx_dashboard_swagger:fields(page) ++
-        emqx_dashboard_swagger:fields(limit) ++
-        [{count, hoconsc:mk(integer(), #{example => 1})}].
+    ].
 
 banned(get, #{query_string := Params}) ->
     Response = emqx_mgmt_api:paginate(?TAB, Params, ?FORMAT_FUN),

apps/emqx_management/src/emqx_mgmt_api_clients.erl

@@ -203,7 +203,7 @@ schema("/clients") ->
             responses => #{
                 200 => [
                     {data, hoconsc:mk(hoconsc:array(hoconsc:ref(?MODULE, client)), #{})},
-                    {meta, hoconsc:mk(hoconsc:ref(?MODULE, meta), #{})}
+                    {meta, hoconsc:mk(hoconsc:ref(emqx_dashboard_swagger, meta), #{})}
                 ],
                 400 =>
                     emqx_dashboard_swagger:error_codes(
@@ -518,11 +518,7 @@ fields(subscribe) ->
 fields(unsubscribe) ->
     [
         {topic, hoconsc:mk(binary(), #{desc => <<"Topic">>})}
-    ];
-fields(meta) ->
-    emqx_dashboard_swagger:fields(page) ++
-        emqx_dashboard_swagger:fields(limit) ++
-        [{count, hoconsc:mk(integer(), #{example => 1})}].
+    ].
 
 %%%==============================================================================================
 %% parameters trans

apps/emqx_management/src/emqx_mgmt_api_topics.erl

@@ -60,7 +60,7 @@ schema("/topics") ->
             responses => #{
                 200 => [
                     {data, hoconsc:mk(hoconsc:array(hoconsc:ref(topic)), #{})},
-                    {meta, hoconsc:mk(hoconsc:ref(meta), #{})}
+                    {meta, hoconsc:mk(hoconsc:ref(emqx_dashboard_swagger, meta), #{})}
                 ]
             }
         }
@@ -91,11 +91,7 @@ fields(topic) ->
                 desc => <<"Node">>,
                 required => true
             })}
-    ];
-fields(meta) ->
-    emqx_dashboard_swagger:fields(page) ++
-        emqx_dashboard_swagger:fields(limit) ++
-        [{count, hoconsc:mk(integer(), #{example => 1})}].
+    ].
 
 %%%==============================================================================================
 %% parameters trans