title: What's the proper way to get user data from a cookie that has a session id?
body: <p>My node.js server stores a cookie on the browser with a session id. I want to be able to access user data on the frontend in React, like a property I have called <code>isLoggedIn</code>.</p>
  <p>I've tried to use <code>sessionStorage.getItem(&quot;isLoggedIn&quot;);</code> but this returns null, I'm assuming because a) I'm using cookies on the browser and sessions on the backend; and b) because there's only a session id, no property called <code>isLoggedIn</code> on the browser.</p>
  <p>How could I get this property? Do I have to make a GET request to the server to query the database for the session?</p>