Updated answer from apollos example

https://www.apollographql.com/docs/react/data/file-uploads

import UploadHttpLink from "apollo-upload-client/UploadHttpLink.mjs";
import {ApolloProvider} from "@apollo/client/react";

const client = new ApolloClient({
  link: new UploadHttpLink({
      uri: 'http://localhost:8080/query',
  }),
  cache: new InMemoryCache(),
})