connect - node.js request session property -


i try learn, how build app node.js, express , backbone. user authentication use cookie , session middleware, 

  app.use(express.cookieparser());   app.use(express.session({secret: "socialnet secret key", store: new memorystore()}));

now, if request comes in, can use session property 

req.session

i encounter code snippet book

app.post('/login', function(req, res) {   console.log('login request');   var email = req.param('email', null);   var password = req.param('password', null);    if ( null == email || email.length < 1       || null == password || password.length < 1 ) {     res.send(400);     return;   }    account.login(email, password, function(success) {     if ( !success ) {       res.send(401);       return;     }     console.log('login successful');     req.session.loggedin = true;     res.send(200);   }); });

look @ req.session.loggedin, loggedin property comes from? can add own request session property req.session property?


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