title: Where is or What is the serviceAccountKey.json is the node js sample of firebase realtime database
body: <p>I have downloaded the zip of <code>Firebase real-time database node.js sample</code> and navigate to the database section</p>
  
  <p><a href="https://github.com/firebase/quickstart-nodejs/tree/master/database" rel="noreferrer">https://github.com/firebase/quickstart-nodejs/tree/master/database</a></p>
  
  <p>And I located to the <code>line 35</code> which has the following code</p>
  
  <pre><code>var serviceAccount = require('path/to/serviceAccountKey.json');
  </code></pre>
  
  <p>But I was wondering where is/what is the serviceAccountKey.json?</p>