Provide sample API message, add a menu item for api.json

config/api.json

@@ -1 +1,8 @@
-{}
+{
+  "sampleMessage": {
+    "id": "extension id goes here",
+    "message": {
+      "data": "message can be any JSON object passable to chrome.runtime.sendMessageExternal"
+    }
+  }
+}

config/menus.json

@@ -72,6 +72,7 @@
       { "label": "User Preferences", "command": "session:open-settings-file", "argument": "user" },
       { "label": "Keyboard", "command": "session:open-settings-file", "argument": "keys" },
       { "label": "Menus", "command": "session:open-settings-file", "argument": "menus" },
+      { "label": "External Commands", "command": "session:open-settings-file", "argument": "api" },
       "divider",
       { "label": "View Defaults",
         "sub": [

js/api.js

@@ -8,10 +8,13 @@ define(["command", "settings!api"], function(command, Settings) {
   command.on("api:execute", function(id) {
     if (!id in targets) return;
     var config = targets[id];
-    chrome.runtime.sendMessage(config.id, config.message);
+    chrome.runtime.sendMessage(config.id, config.message, null, function() {
+      if (chrome.runtime.lastError) {
+        console.error(chrome.runtime.lastError);
+      }
+    });
   });
   
-  
   //External apps can send messages by matching Caret's command/argument config objects
   chrome.runtime.onMessageExternal.addListener(function(message, sender, c) {
     command.fire(message.command, message.argument, c);

manifest.json

@@ -1,7 +1,7 @@
 {
   "name": "Caret",
   "description": "Professional text editing for Chrome and Chrome OS",
-  "version": "1.2.11",
+  "version": "1.2.12",
   "manifest_version": 2,
   "icons": {
     "128": "icon-128.png"