router.js

const router = (
  <Provider store={store}>
    <Router history={history}>
      <Route path='/' component={App}>
        <IndexRoute component={Home} />
        <Route path='/recipes/add' component={AddRecipe} />
        <Route path='/recipes/:id' component={SingleRecipe} />
        <Route path='/signup' component={SignupPage} />
        <Route path='/login' component={LoginPage} />
      </Route>
    </Router>
  </Provider>
);