req.route Contains the currently-matched route, a string. For example: app.get('/user/:id?', function userIdHandler(req, res) { console.log(req.route); res.send('GET'); }); Example output from the previous snippet: { path: '/user/:id?', stack: [ { handle: [Function: userIdHandler], name: 'userIdHandler', params: undefined, path: undefined, keys: [], regexp: /^\/?$/i, method: 'get' } ], methods: { get: true } }

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 the empty object, {}. // GET /search?q=tobi+ferret req.query.q // => "tobi ferret" // GET /shoes?order=desc&shoe[color]=blue&shoe[type]=converse req.query.order // => "desc" req.query.shoe.color // => "blue" req.query.shoe.type // => "converse"

req.protocol Contains the request protocol string: either http or (for TLS requests) https. When the trust proxy setting does not evaluate to false, this property will use the value of the X-Forwarded-Proto header field if present. This header can be set by the client or by the proxy. req.protocol // => "http"

req.path Contains the path part of the request URL. // example.com/users?sort=desc req.path // => "/users" When called from a middleware, the mount point is not included in req.path. See app.use() for more details.

req.params This property is an object containing properties mapped to the named route “parameters”. For example, if you have the route /user/:name, then the “name” property is available as req.params.name. This object defaults to {}. // GET /user/tj req.params.name // => "tj" When you use a regular expression for the route definition, capture groups are provided in the array using req.params[n], where n is the nth capture group. This rule is applied to unnamed wild card matches with string

req.param(name [, defaultValue]) Deprecated. Use either req.params, req.body or req.query, as applicable. Returns the value of param name when present. // ?name=tobi req.param('name') // => "tobi" // POST name=tobi req.param('name') // => "tobi" // /user/tobi for /user/:name req.param('name') // => "tobi" Lookup is performed in the following order: req.params req.body req.query Optionally, you can specify defaultValue to set a default value if the parameter is not found in any o

req.originalUrl req.url is not a native Express property, it is inherited from Node’s http module. This property is much like req.url; however, it retains the original request URL, allowing you to rewrite req.url freely for internal routing purposes. For example, the “mounting” feature of app.use() will rewrite req.url to strip the mount point. // GET /search?q=something req.originalUrl // => "/search?q=something"

req.method Contains a string corresponding to the HTTP method of the request: GET, POST, PUT, and so on.

req.is(type) Returns true if the incoming request’s “Content-Type” HTTP header field matches the MIME type specified by the type parameter. Returns false otherwise. // With Content-Type: text/html; charset=utf-8 req.is('html'); req.is('text/html'); req.is('text/*'); // => true // When Content-Type is application/json req.is('json'); req.is('application/json'); req.is('application/*'); // => true req.is('html'); // => false For more information, or if you have issues or concerns, see

req.ips When the trust proxy setting does not evaluate to false, this property contains an array of IP addresses specified in the X-Forwarded-For request header. Otherwise, it contains an empty array. This header can be set by the client or by the proxy. For example, if X-Forwarded-For is client, proxy1, proxy2, req.ips would be ["client", "proxy1", "proxy2"], where proxy2 is the furthest downstream.