Update apollo config

src/index.tsx

@@ -1,6 +1,12 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
-import { ApolloClient, InMemoryCache, ApolloProvider } from '@apollo/client';
+import {
+  ApolloClient,
+  InMemoryCache,
+  createHttpLink,
+  ApolloProvider,
+} from '@apollo/client';
+import { setContext } from '@apollo/client/link/context';
 import { ThemeProvider } from 'styled-components';
 import { BrowserRouter } from 'react-router-dom';
 import { theme } from './themes';
@@ -8,12 +14,24 @@ import App from './App';
 import GlobalStyles from './GlobalStyles';
 import reportWebVitals from './reportWebVitals';
 
-const client = new ApolloClient({
+const httpLink = createHttpLink({
   uri: process.env.REACT_APP_GRAPHQL_API,
+});
+
+const authLink = setContext((_, { headers }) => {
+  const token = localStorage.getItem('token');
+
+  return {
+    headers: {
+      ...headers,
+      authorization: token || '',
+    },
+  };
+});
+
+const client = new ApolloClient({
+  link: authLink.concat(httpLink),
   cache: new InMemoryCache(),
-  headers: {
-    authorization: localStorage.getItem('token')!,
-  },
 });
 
 ReactDOM.render(