accounts-frontend/packages/app/shell/App.tsx

import { hot } from 'react-hot-loader/root';
import React, { ComponentType } from 'react';
import { Route, Switch } from 'react-router-dom';

import { Store } from 'app/reducers';
import AuthFlowRoute from 'app/containers/AuthFlowRoute';
import RootPage from 'app/pages/root/RootPage';
import { ComponentLoader } from 'app/components/ui/loader';

import ContextProvider from './ContextProvider';

import type { History } from 'history';

const SuccessOauthPage = React.lazy(() =>
    import(/* webpackChunkName: "page-oauth-success" */ 'app/pages/auth/SuccessOauthPage'),
);

interface Props {
    store: Store;
    history: History;
}

const App: ComponentType<Props> = ({ store, history }) => (
    <ContextProvider store={store} history={history}>
        <React.Suspense fallback={<ComponentLoader />}>
            <Switch>
                <Route path="/oauth2/code/success" component={SuccessOauthPage} />
                <AuthFlowRoute path="/oauth2/:version(v\d+)/:clientId?" component={() => null} />
                <Route path="/" component={RootPage} />
            </Switch>
        </React.Suspense>
    </ContextProvider>
);

export default hot(App);