Handling API Operation error when Channel does not support it

Node/core-CreateNewConversation/README.md

@@ -15,14 +15,16 @@ The minimum prerequisites to run this sample are:
 
 ### Code Highlights
 
-Bot Builder uses dialogs to model a conversational process, the exchange of messages, between bot and user. [bot.beginDialog()](app.js#L28) can be used to proactively start a new dialog to interact with the user.
+Bot Builder uses dialogs to model a conversational process, the exchange of messages, between bot and user. [bot.beginDialog()](app.js#L32) can be used to proactively start a new dialog to interact with the user.
 Because, an address is required to initiate a new conversation, this user address should be saved during any previous conversation with the user. 
 Any current conversation between the bot and user will be replaced with a new dialog stack.
 Alternatively, [bot.send()](https://docs.botframework.com/en-us/node/builder/chat-reference/classes/_botbuilder_d_.universalbot.html#send) can be used to send a message without starting a dialog. 
 
 ````JavaScript
-// this is the object we should persist if we want to create a new conversation anytime later 
+// this is the object we should persist if we want to create a new conversation anytime later
+// copy it without the conversationId 
 var address = session.message.address;
+delete address.conversation;
 
 // then... on another scope
 

Node/core-CreateNewConversation/app.js

@@ -24,8 +24,19 @@ setInterval(function () {
 
         console.log('Starting survey for address:', address);
 
-        // start survey dialog using stored address
-        bot.beginDialog(address, '/survey');
+        // new conversation address, copy without conversationId
+        var newConversationAddress = Object.assign({}, address);
+        delete newConversationAddress.conversation;
+
+        // start survey dialog
+        bot.beginDialog(newConversationAddress, '/survey', null, (err) => {
+            if(err) {
+                // error ocurred while starting new conversation. Channel not supported?
+                bot.send(new builder.Message()
+                    .text('This channel does not support this operation: ' + err.message)
+                    .address(address));
+            }
+        });
 
     });
 }, 5000);