title: An async fetch framework for Redux
body: <p>In <a href="http://redux.js.org/docs/advanced/AsyncActions.html" rel="nofollow noreferrer">Async Actions</a> section of Redux help, there is code like: </p>
  
  <pre><code>{
    selectedSubreddit: 'frontend',
    postsBySubreddit: {
      frontend: {
        isFetching: true,
        didInvalidate: false,
        items: []
      },
      reactjs: {
        isFetching: false,
        didInvalidate: false,
        lastUpdated: 1439478405547,
        items: [ ... ]
      },
  }
  </code></pre>
  
  <p>There is a pattern of using <code>isFetching</code>, <code>didInvalidate</code>, <code>lastUpdated</code> -- I was wondering if there is a JS library which does exactly that? I think Relay is too much for what I'm trying to achieve. </p>