index.js

import React from "react";
import ReactDOM from "react-dom";
import "./index.css";
import App from "./App";
import * as serviceWorker from "./serviceWorker";
import { createStore, applyMiddleware } from "redux";
import thunk from "redux-thunk";
import { Provider } from "react-redux";
import { reducer } from "./reducers";
import {composeWithDevTools} from "redux-devtools-extension"

const store = createStore(reducer, composeWithDevTools(applyMiddleware(thunk)) );

ReactDOM.render(
  <React.StrictMode>
    <Provider store={store}>
      <App />
    </Provider>
  </React.StrictMode>,

  document.getElementById("root")
);

// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: https://bit.ly/CRA-PWA
serviceWorker.unregister();