Updates to Chapter6/app/Amazeriffic/server.js for Express 4.x

server.js.diff

diff --git a/Chapter6/app/Amazeriffic/server.js b/Chapter6/app/Amazeriffic/server.js
index fc11916..dceaa69 100644
--- a/Chapter6/app/Amazeriffic/server.js
+++ b/Chapter6/app/Amazeriffic/server.js
@@ -1,5 +1,6 @@
 var express = require("express"),
     http = require("http"),
+    bodyParser = require("body-parser"),
     app = express(),
     toDos = [
         { 
@@ -32,7 +33,7 @@ app.use(express.static(__dirname + "/client"));
 
 // tell Express to parse incoming
 // JSON objects
-app.use(express.urlencoded());
+app.use(bodyParser.json());
 
 http.createServer(app).listen(3000);
 

To get these changes to work, you'll need to run

npm install body-parser