Rocket.Chat/app/message-snippet/client/router.js

import { FlowRouter } from 'meteor/kadira:flow-router';

import { appLayout } from '../../../client/lib/appLayout';

FlowRouter.route('/snippet/:snippetId/:snippetName', {
	name: 'snippetView',
	action() {
		appLayout.render('main', { center: 'snippetPage' });
	},
});