title: The difference between AWS Amplify and amazon-cognito-identity-js?
body: <p>I'm reviewing this demo of how to integrate Cognito with Angular, and it <a href="https://www.npmjs.com/package/amazon-cognito-identity-js" rel="noreferrer">amazon-cognito-identity-js</a> for the authorization service.</p>
  
  <p>It seems that is what we should be using, but other tutorials install <a href="https://www.npmjs.com/package/aws-amplify" rel="noreferrer">AWS Amplify</a> as a whole:</p>
  
  <pre><code>npm i aws-amplify
  </code></pre>
  
  <p>Curious what the difference is and whether one is more current than the other?</p>