Routing

emvc's router is responsible for receiving requests to your application and dispatching them to a controller's action. Dispatching is based on the request's URL and HTTP method.

The router also dynamically generates routing helper functions that build paths and URLs. These helpers are available in controllers and views, eliminating the need to hardcode strings.

Routes are configured in config/routes.js

Match Routes

emvc can match arbitrary URL patterns to a controller's action.

For example, declaring this match route:

this.match('songs/:title', { controller: 'songs', action: 'show' });

will cause SongsController's show() action to handle requests for URLs which match the pattern.

/songs/like-a-rolling-stone
/songs/all-along-the-watchtower

Shorthand notation, in the form of controller#action is also available to target a controller's action. For example, the following route is equivalent to the one declared above:

this.match('songs/:title', 'songs#show');

The values associated with named placeholders, in this case :title, will be available in the controller via the param() function.

this.param('title');  // returns 'like-a-rolling-stone'

Via

By default, match routes use GET as the HTTP method. This can be changed by specifying the via option:

this.match('photos/upload', 'photos#upload', { via: 'POST' });

A route that responds to multiple methods can be specified as an array.

this.match('photos/upload', 'photos#upload', { via: ['POST', 'PUT'] });

Helper

A routing helper can be declared along with the route with the as option:

this.match('bands/:id', 'bands#show', { as: 'bands' });

in which case a path routing helper, and corresponding URL routing helper, will be available in controllers and views.

Routing to Middleware

Instead of routing to a controller, you can route directly to any Connect-compatible middleware.

For example, the following will route login requests to Passport for authentication.

this.match('login',
    passport.authenticate('local', { successRedirect: '/', failureRedirect: '/login' }),
    { via: 'post' });

Routes can be sent to a middleware chain by specifying each middleware as an element within an array.

this.match('somewhere', [ middlewareOne(), middlewareTwo() ]);

Root Route

The root route, /, can be declared with the root() function:

this.root('pages#main');