index.js

ReactDOM.render(
  <Router history={browserHistory}>
    <Route path="/" component={App}>
      <IndexRoute component={Home}/>
      <Route path="about" component={About}/>
      <Route path="post" component={Posts}/>
      <Route path="post/:id" component={Post}/>
    </Route>
  </Router>,
  document.getElementById('root')
);