frontend/smart-hut/src/index.js

import React from "react";
import ReactDOM from "react-dom";
import App from "./App";
import * as serviceWorker from "./serviceWorker";
import { Provider } from "react-redux";
import smartHutStore from "./store";

const index = (
  <Provider store={smartHutStore}>
    <App />
  </Provider>
);

ReactDOM.render(index, document.getElementById("root"));
serviceWorker.unregister();