fix(emqx_bridge): small fixes from review

apps/emqx_bridge/i18n/emqx_bridge_api.conf

@@ -2,8 +2,8 @@ emqx_bridge_api {
 
     desc_param_path_operation_cluster {
                    desc {
-                         en: """Operations can be one of: start, stop, restart"""
-                         zh: """集群可用操作：启用、启动、重新启动"""
+                         en: """Operations can be one of: stop, restart"""
+                         zh: """集群可用操作：停止、重新启动"""
                         }
                    label: {
                            en: "Cluster Operation"

apps/emqx_bridge/src/emqx_bridge_api.erl

@@ -107,7 +107,7 @@ param_path_operation_on_node() ->
             #{
                 in => path,
                 required => true,
-                example => <<"start">>,
+                example => <<"stop">>,
                 desc => ?DESC("desc_param_path_operation_on_node")
             }
         )}.
@@ -142,6 +142,7 @@ param_path_enable() ->
             boolean(),
             #{
                 in => path,
+                required => true,
                 desc => ?DESC("desc_param_path_enable"),
                 example => true
             }

apps/emqx_bridge/test/emqx_bridge_api_SUITE.erl

@@ -616,7 +616,6 @@ t_metrics(Config) ->
 
     %% check for empty bridge metrics
     {ok, 200, Bridge1Str} = request(get, uri(["bridges", BridgeID, "metrics"]), []),
-    ct:pal("HERE ~p", [jsx:decode(Bridge1Str)]),
     ?assertMatch(
         #{
             <<"metrics">> := #{<<"success">> := 0},
@@ -625,6 +624,12 @@ t_metrics(Config) ->
         jsx:decode(Bridge1Str)
     ),
 
+    %% check that the bridge doesn't contain metrics anymore
+    {ok, 200, Bridge2Str} = request(get, uri(["bridges", BridgeID]), []),
+    Decoded = jsx:decode(Bridge2Str),
+    ?assertNot(maps:is_key(<<"metrics">>, Decoded)),
+    ?assertNot(maps:is_key(<<"node_metrics">>, Decoded)),
+
     %% send an message to emqx and the message should be forwarded to the HTTP server
     Body = <<"my msg">>,
     emqx:publish(emqx_message:make(<<"emqx_webhook/1">>, Body)),
@@ -645,19 +650,17 @@ t_metrics(Config) ->
     ),
 
     %% check for non-empty bridge metrics
-    {ok, 200, Bridge2Str} = request(get, uri(["bridges", BridgeID, "metrics"]), []),
-    ct:pal("HERE ~p", [jsx:decode(Bridge2Str)]),
+    {ok, 200, Bridge3Str} = request(get, uri(["bridges", BridgeID, "metrics"]), []),
     ?assertMatch(
         #{
             <<"metrics">> := #{<<"success">> := 1},
             <<"node_metrics">> := [_ | _]
         },
-        jsx:decode(Bridge2Str)
+        jsx:decode(Bridge3Str)
     ),
 
     %% check for non-empty metrics when listing all bridges
     {ok, 200, BridgesStr} = request(get, uri(["bridges"]), []),
-    ct:pal("HERE ~p", [jsx:decode(BridgesStr)]),
     ?assertMatch(
         [
             #{