Make errors catchable and (de)register at config node of all nodes

src/matrix-synapse-deactivate-user.js

@@ -8,9 +8,10 @@ module.exports = function(RED) {
         this.server = RED.nodes.getNode(n.server);
 
         if(!this.server) {
-            node.error('Server must be configured on the node.');
+            node.error('Server must be configured on the node.', {});
             return;
         }
+        node.server.register(node);
 
         this.encodeUri = function(pathTemplate, variables) {
             for (const key in variables) {
@@ -41,12 +42,12 @@ module.exports = function(RED) {
             }
 
             if(!node.server.isConnected()) {
-                node.error("Matrix server connection is currently closed");
+                node.error("Matrix server connection is currently closed", {});
                 node.send([null, msg]);
             }
 
             if(!msg.userId) {
-                node.error("msg.userId must be set to edit/create a user (ex: @user:server.com)");
+                node.error("msg.userId must be set to edit/create a user (ex: @user:server.com)", {});
                 return;
             }
 
@@ -70,6 +71,10 @@ module.exports = function(RED) {
                     node.send([null, msg]);
                 });
         });
+
+        node.on("close", function() {
+            node.server.deregister(node);
+        });
     }
     RED.nodes.registerType("matrix-synapse-deactivate-user", MatrixSynapseDeactivateUser);
 }