router.js

// src/index.js
import createHistory from 'history/createBrowserHistory';

const intrinsicState = {};
const history = createHistory();
const store = configureStore(intrinsicState, history); // this includes the same shared history and also creates reducers, which includes the router ones
const locale = 'en';


store.dispatch({ type: 'SET_LANGUAGE',
  payload: {
    locale: 'en'
  }
})

render(
  <Provider store={store}>
    <ConnectedRouter history={history}>
      <CasinoSiteApp />
    </ConnectedRouter>
  </Provider>,
  document.getElementById('app')
);

//containers/App/index.js (CasinoSiteApp)
function App(props: PropTypes) {
  return (
    <main>
      <Nav />
      <Switch>
        <Route exact path="/" component={Home}/>
        <Route exact path="/login" component={Login}/>
      </Switch>
    </main>
  );
}

export default withRouter(connect(
  mapStateToProps
)(translate('app', App)));