javascript source code of index

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import * as serviceWorker from './serviceWorker';
import ApolloClient from 'apollo-boost';
import { ApolloProvider } from '@apollo/react-hooks';

const client = new ApolloClient({
  uri: 'https://api.github.com/graphql',
  request: operation => {
    operation.setContext({
      headers: {
        authorization: `Bearer ${process.env.REACT_APP_GITHUB_PERSONAL_ACCESS_TOKEN}`,
      },
    });
  },
});

ReactDOM.render(
  <React.StrictMode>
      <ApolloProvider client={client}>
    <App />
      </ApolloProvider>
  </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();