funziona

mikrotik-custom.js

@@ -24,6 +24,11 @@ module.exports = function(RED) {
         var password = this.device.password;
         var command;
 
+        var connection = mikrotik.getConnection(host, username, password, {closeOnDone : false, port: port});
+        var connpromise = null;
+        var connected = false;
+        node.status({fill:"grey",shape:"dot",text:"unconfigured"});
+
         switch (parseInt(node.action)) {
             case 0:
                 command = '/log/print';
@@ -42,19 +47,32 @@ module.exports = function(RED) {
                 break;
         }
 
-        var connection = mikrotik.getConnection(host, username, password, {closeOnDone : false, port: port});
-        var conn = null;
-        try {
-            conn = connection.connect();
-        } catch (error) {
-            node.error(error);
+        function on_connect(){
+            node.status({fill:"green",shape:"dot",text:"connected"});
+            connected = true;
         }
         
+        connpromise = connection.connect(on_connect);
+        connpromise.on('close', function(err){
+            node.status({fill:"yellow",shape:"dot",text:"disconnected:"+err});
+            connected = false;
+        });
+        connpromise.on('trap', function(err){
+            node.status({fill:"red",shape:"ring",text:"FAILED:"+err});
+            connected = false;
+        });
+        connpromise.on('error', function(err){
+            node.status({fill:"red",shape:"dop",text:"ERROR:"+err});
+            connected = false;
+        });
+        
         this.on('input', function(msg) {
             if (command == '') command = msg.payload;
             if (command == '') return false;
-
-            conn.getCommandPromise(command).then(
+            if (!connected) {
+                connection.connect(on_connect);
+            } else {
+                connpromise.getCommandPromise(command).then(
                     function resolved(values) {  //promise resolved
                         var parsed = mikrotik.parseItems(values);
                         var pl = [];
@@ -63,11 +81,12 @@ module.exports = function(RED) {
                         });
                         msg.payload = values;
                         node.send(msg);
-                }, 
-                function notresolved(reason) { //promise rejected
+                    }, function notresolved(reason) { //promise rejected
                         node.error('Error executing cmd['+command+']: ' + JSON.stringify(reason));
                     }
                 );
+            }
+            command = ''; //reset command string
         });
 
         this.on('close', function() {