react.js

// client/app/router.jsx
// Setup routes

// For different templates based on domain
var SiteRoutes = {
    'test1.com': (
      <Route handler={ReactRouter.RouteHandler}>
        <Route path='/' handler={require('./routes/test1.com/home.jsx')} />
        <Route path='/sets' handler={require('./routes/test1.com/sets.jsx')} />
        <Route path='/sets/:action' handler={require('./routes/test1.com/sets.jsx')} />
        <Route path='/sets/:setId/:action' handler={require('./routes/test1.com/sets.jsx')} />
      </Route>
    ),
    'test2.com': (
      <Route handler={ReactRouter.RouteHandler}>
        <Route path='/' handler={require('./routes/test2.com/home.jsx')} />
      </Route>
    )
};

// Base templates
var RouteHandlers = (
  <Route handler={ReactRouter.RouteHandler}>
    <DefaultRoute handler={require('./routes/default/home.jsx')} />
    <NotFoundRoute name='not-found' handler={require('./routes/default/notfound.jsx')} />

    {Ace.site.host in SiteRoutes ? SiteRoutes[Ace.site.host] : DummyRoute}

    <Route path='/' handler={require('./routes/default/home.jsx')} />
    <Route path='/login' handler={require('./routes/default/login.jsx')} />
    <Route path='/register' handler={require('./routes/default/register.jsx')} />
    <Route path='/account/dashboard' handler={require('./routes/default/account/dashboard.jsx')} />
    <Route path='/sets' handler={require('./routes/default/sets.jsx')} />
    <Route path='/sets/create' handler={require('./routes/default/sets/create.jsx')} />
    <Route path='/sets/:setId' handler={require('./routes/default/sets/view.jsx')} />
    <Route path='/sets/:setId/edit' handler={require('./routes/default/sets/edit.jsx')} />

    <Route path='/admin' handler={require('./routes/default/admin.jsx')} />
    <Route path='/admin/dashboard' handler={require('./routes/default/admin/dashboard.jsx')} />
    <Route path='/admin/sets' handler={require('./routes/default/admin/sets.jsx')} />
    <Route path='/admin/sets/create' handler={require('./routes/default/admin/sets/create.jsx')} />
    <Route path='/admin/sets/:page' handler={require('./routes/default/admin/sets.jsx')} />
    <Route path='/admin/sets/:setId/edit' handler={require('./routes/default/admin/sets/edit.jsx')} />
  </Route>
);


// Server.js

var routes = require('../client/app/router.jsx').routes;

var renderApp = function(req, res, cb) {
  var router = ReactRouter.create({
    routes: routes,
    location: req.url,
    onAbort: function(redirect) {
      cb({redirect: redirect});
    },
    onError: function(err) {
      console.log(err);
    }
  });

  router.run(function(Handler, state) {
    if (!state.routes.length) {
      cb('[Ace] No routes found!');
      return;
    }

    if(state.routes[1].name === 'not-found') {
      cb('[Ace] No routes found!');
      //cb({notFound: true}, React.renderToStaticMarkup(<Handler />));
      return;
    }

    cb(null, React.renderToStaticMarkup(<Handler />));
  });
};