A server login interception

Express the require = var ( 'Express'); 
var App = Express (); 

// login interception, if not logged in, part of the operation is disabled 
app.use (function (REQ, RES, Next) { 
  IF (req.cookies.userId ) { 
    Next (); // logged 
  } the else { 
    // whitelist 
    // the console.log ( "req.originalUrl", req.originalUrl); 
    IF (req.path == '/ Users / Login' REQ || == .path '/ Users / Zimbabwe Logout' || req.path == '/ Goods / List' || req.path == '/ Users / Register') { 
      Next (); 
    } the else { 
      res.json ({ 
        Status: '10001', 
        MSG: 'currently logged', 
        Result: '' 
      }) 
    } 
  } 
})

　　A framework to express here the use of node