app.METHOD(path, callback [, callback ...])
Routes an HTTP request, where METHOD is the HTTP method of the request, such as GET, PUT, POST, and so on, in lowercase. Thus, the actual methods are app.get(), app.post(), app.put(), and so on. See below for the complete list.
For more information, see the routing guide.
Express supports the following routing methods corresponding to the HTTP methods of the same names:
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To route methods which translate to invalid JavaScript variable names, use the bracket notation. For example, app['m-search']('/', function ....
You can provide multiple callback functions that behave just like middleware, except that these callbacks can invoke next('route') to bypass the remaining route callback(s). You can use this mechanism to impose pre-conditions on a route, then pass control to subsequent routes if there is no reason to proceed with the current route.
The API documentation has explicit entries only for the most popular HTTP methods app.get(), app.post(), app.put(), and app.delete(). However, the other methods listed above work in exactly the same way.
There is a special routing method, app.all(), that is not derived from any HTTP method. It loads middleware at a path for all request methods.
In the following example, the handler is executed for requests to “/secret” whether using GET, POST, PUT, DELETE, or any other HTTP request method.
app.all('/secret', function (req, res, next) {
console.log('Accessing the secret section ...')
next() // pass control to the next handler
});
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