sprinklers3/client/index.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { AppContainer } from "react-hot-loader";
import { Router } from "react-router-dom";

import App from "@client/App";
import { AppState, ProvideState } from "@client/state";
import logger from "@common/logger";

const state = new AppState();
state.start().catch((err: any) => {
  logger.error({ err }, "error starting state");
});

const rootElem = document.getElementById("app");

const doRender = (Component: React.ComponentType) => {
  ReactDOM.render(
    <AppContainer>
      <ProvideState state={state}>
        <Router history={state.history}>
          <Component />
        </Router>
      </ProvideState>
    </AppContainer>,
    rootElem
  );
};

doRender(App);

if (module.hot) {
  module.hot.accept("@client/App", () => {
    const NextApp = require<any>("@client/App").default as typeof App;
    doRender(NextApp);
  });
}