getRouteProps.js

var App = React.createClass({
  statics: {
    getRouteProps: function (params, query) {
      return {
        currentUser: getCurrentUser()
      };
    }
  },
  render: function () {
    return <this.activeRouteHandler/>;
  }
});

var Profile = React.createClass({
  statics: {
    getRouteProps: function (params, query) {
      return {
        profileUser: getUser(params.userID)
      };
    }
  },
  render: function () {
    var profileUser = this.props.profileUser;
    
    if (profileUser == null)
      return null;

    return (
      <div>Hi {profileUser.name}</div>
    );
  }
});

var routes = (
  <Routes>
    <Route handler={App}>
      <Route name="profile" path="/users/:userID" handler={Profile}/>
    </Route>
  </Routes>
);