authorization header

Hi Why I can’t use localStorage in withApollo.js?

I run this code:

import withApollo from 'next-with-apollo';`
import ApolloClient, { InMemoryCache } from 'apollo-boost';
import { ApolloProvider } from '@apollo/react-hooks';

export default withApollo(
  ({ initialState }) => {
    return new ApolloClient({
      uri: 'http://localhost:8000/graphql/',
      cache: new InMemoryCache().restore(initialState || {}),
      headers: {
        authorization: localStorage.getItem("token")
      }
    });
  },
  {
    render: ({ Page, props }) => {
      return (
        <ApolloProvider client={props.apollo}>
          <Page {...props} />
        </ApolloProvider>
      );
    }
  }
);

and I see this error: ReferenceError: localStorage is not defined module.exports../lib/withApollo.js.__webpack_exports__.default.next_with_apollo__WEBPACK_IMPORTED_MODULE_1___default.render.Page.Page ./lib/withApollo.js:11

Can you help me?

[chemicalkosek]

localStorage is only client side so it’s undefined server side

[AliNazariii]

Yes, It works for SSR but I didn’t want to use my token in ApolloClient. I think (and I hope) it works in ApolloClient, too.