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MEANAppsFiles

This course is out of date.

Express Changes

The latest version of express has deprecated the body parser middleware.

That means that when you see the following line of code:

app.use(bodyParser.json());

you should instead use the following two lines of code:

app.use(bodyParser.urlencoded({extended: true}));
app.use(bodyParser.json());

The latest version of express has also changed the session middleware a little bit and now requires that you explicitly specify a value for the resave parameter and the saveUninitialized parameter. So in the module on authentication when you see the following code:

app.use(session({secret: 'multi vision unicorns'}))

you should instead use the following code:

app.use(session({secret: 'multi vision unicorns',resave:false,saveUninitialized:false}));

Angular Changes

In addition to that, Angular 1.3 now requires a base tag when using html5Mode routing. In your layout.jade file (and maybe earlier in your index.jade), in the head you should place the following line of code:

base(href="/")

MongoDB Changes

Current versions of MongoDB require a "query" when calling the remove function. So periodically in the course we will delete all the users from the db with the following command:

db.users.remove()

But instead, you need to pass an empty "query object" into the remove function like this:

db.users.remove({})

Notes: To run the node server, type "node web-server.js" or "nodemon web-server.js" from the directory that contains the web-server.js file

Crypto Changes

In more recent versions of node.js update() and digest() are legacy methods. The new approach is to use the streaming API methods write() end() and read();

function hashPwd(salt, pwd){
  var hmac = crypto.createHmac('sha1', salt);
  hmac.setEncoding('hex');
  hmac.write(pwd);
  hmac.end();
  return hmac.read();
}

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