Copy over "sample" node files freo main project as this is where most people will be adding extra nodes.

Author: dceejay

99-sample.html.demo

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+<!--
+  Copyright 2013 IBM Corp.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
+<!-- Sample html file that corresponds to the 99-sample.js file              -->
+<!-- This creates and configures the onscreen elements of the node           -->
+
+<!-- If you use this as a template, replace IBM Corp. with your own name.    -->
+
+<!-- First, the content of the edit dialog is defined.                       -->
+
+<script type="text/x-red" data-template-name="sample">
+   <!-- data-template-name identifies the node type this is for              -->
+
+   <!-- Each of the following divs creates a field in the edit dialog.       -->
+   <!-- Generally, there should be an input for each property of the node.   -->
+   <!-- The for and id attributes identify the corresponding property        -->
+   <!-- (with the 'node-input-' prefix).                                     -->
+   <!-- The available icon classes are defined in Twitter Bootstrap          -->
+    <div class="form-row">
+        <label for="node-input-topic"><i class="icon-tasks"></i> Topic</label>
+        <input type="text" id="node-input-topic" placeholder="Topic">
+    </div>
+
+    <!-- By convention, most nodes have a 'name' property. The following div -->
+    <!-- provides the necessary field.                                       -->
+    <div class="form-row">
+        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
+        <input type="text" id="node-input-name" placeholder="Name">
+    </div>
+</script>
+
+
+<!-- Next, some simple help text is provided for the node.                   -->
+<script type="text/x-red" data-help-name="sample">
+   <!-- data-help-name identifies the node type this help is for             -->
+   <!-- This content appears in the Info sidebar when a node is selected     -->
+   <!-- The first <p> is used as the pop-up tool tip when hovering over a    -->
+   <!-- node in the palette.                                                 -->
+   <p>Simple sample input node. Just sends a single message when it starts up.
+   This is not very useful.</p>
+   <p>Outputs an object called <b>msg</b> containing <b>msg.topic</b> and
+   <b>msg.payload</b>. msg.payload is a String.</p>
+</script>
+
+<!-- Finally, the node type is registered along with all of its properties   -->
+<!-- The example below shows a small subset of the properties that can be set-->
+<script type="text/javascript">
+    RED.nodes.registerType('sample',{
+        category: 'input',      // the palette category
+        defaults: {             // defines the editable properties of the node
+            name: {value:""},   //  along with default values.
+            topic: {value:"", required:true}
+        },
+        inputs:0,                // set the number of inputs - only 0 or 1
+        outputs:1,               // set the number of outputs - 0 to n
+        icon: "arrow-in.png",    // set the icon (held in public/icons)
+        label: function() {      // sets the default label contents
+            return this.name||this.topic||"sample";
+        },
+        labelStyle: function() { // sets the class to apply to the label
+            return this.name?"node_label_italic":"";
+        }
+    });
+</script>

99-sample.js.demo

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+/**
+ * Copyright 2013 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+// If you use this as a template, replace IBM Corp. with your own name.
+
+// Sample Node-RED node file
+
+// Require main module
+var RED = require(process.env.NODE_RED_HOME+"/red/red");
+
+// The main node definition - most things happen in here
+function SampleNode(n) {
+    // Create a RED node
+    RED.nodes.createNode(this,n);
+
+    // Store local copies of the node configuration (as defined in the .html)
+    this.topic = n.topic;
+
+    // Do whatever you need to do in here - declare callbacks etc
+    // Note: this sample doesn't do anything much - it will only send
+    // this message once at startup...
+    // Look at other real nodes for some better ideas of what to do....
+    var msg = {};
+    msg.topic = this.topic;
+    msg.payload = "Hello world !"
+
+    // send out the message to the rest of the workspace.
+    this.send(msg);
+
+    this.on("close", function() {
+        // Called when the node is shutdown - eg on redeploy.
+        // Allows ports to be closed, connections dropped etc.
+        // eg: this.client.disconnect();
+    });
+}
+
+// Register the node by name. This must be called before overriding any of the
+// Node functions.
+RED.nodes.registerType("sample",SampleNode);