title: ApolloClient is not a constructor (apollo-client with nodejs)
body: <p>I don't have any UI framework. Just a simple Nodejs script where I need to query a GraphQL.</p>
  
  <p>Codes:</p>
  
  <pre><code>const ApolloClient = require('apollo-client')
  const client = new ApolloClient()
  </code></pre>
  
  <p>Error message:</p>
  
  <pre><code>TypeError: ApolloClient is not a constructor
  </code></pre>
  
  <p>Package.json:</p>
  
  <pre><code>{
    ...
  
    "dependencies": {
      "apollo-client": "^2.4.13",
      "graphql": "^14.1.1",
      "graphql-tag": "^2.10.1"
    },
  }
  </code></pre>
  
  <p>Node: <code>v8.9.4</code></p>
  
  <p>I googled a while people have this issue mainly because <code>ApolloClient is no longer in react-apollo. You have to import it from 'apollo-client'</code></p>
  
  <p>And I'm importing from <code>apollo-client</code> as <code>const ApolloClient = require('apollo-client')</code></p>
  
  <p>Any ideas? Thanks!</p>