req.query This property is an object containing a property for each query string parameter in the route. If there is no query string, it is

req.cookies When using cookie-parser middleware,

req.route Contains the currently-matched route, a string. For example: app

req.path Contains the path part of the request URL. // example.com/users

req.stale Indicates whether the request is “stale,” and is the opposite of req.fresh. For more information, see

req.get(field) Returns the specified HTTP request header field (case-insensitive match). The Referrer and Referer

req.subdomains An array of subdomains in the domain name of the request. //