client.js

import { ApolloOfflineClient } from 'offix-client';
import { InMemoryCache } from 'apollo-cache-inmemory';
import { HttpLink } from "apollo-link-http";

const config = {
  link: new HttpLink({ uri: 'http://example.com/graphql' })
  cache: new InMemoryCache()
};

// create the client
const client = new ApolloOfflineClient(config);

// initialise the client
await client.init();