Adjusting HttpTrigger sample

Author: mathewc

sample/HttpTrigger/function.json

@@ -8,7 +8,7 @@
         },
         {
             "type": "http",
-            "name": "res",
+            "name": "$return",
             "direction": "out"
         }
     ]

sample/HttpTrigger/index.js

@@ -6,8 +6,9 @@
         context.log('test-header=' + headerValue);
     }
 
+    var res;
     if (typeof req.query.name == 'undefined') {
-        context.res = {
+        res = {
             status: 400,
             body: "Please pass a name on the query string",
             headers: {
@@ -16,7 +17,7 @@
         };
     }
     else {
-        context.res = {
+        res = {
             status: 200,
             body: "Hello " + req.query.name,
             headers: {
@@ -25,5 +26,5 @@
         };
     }
 
-    context.done();
+    context.done(null, res);
 }