title: how to install shopify app using node API?
body: <p>I have a shopify app(ggfi) in my admin account . I have a website to sell custom gif too.</p>
  <p>What I want :</p>
  <ol>
  <li>when a new user login from my website to shopify , I want to install my app(ggfi) to their shopify dash board , without them clicking &quot;install app&quot; button .</li>
  </ol>
  <p>I could not find any node API documentations to do this from my API side .</p>