title: Google Marketplace - Installing application and access tokens
body: <p>Trying to test installation process for my marketplace application. Google documentation says that I can test installation process by using Test Install Flow button in the console. When I click on that button, I see the authorization dialog and I click accept. The dialog is closed and app is installed on the domain I am testing.  </p>
  
  <p>Question:  Should I be getting and storing a <code>refresh_token</code> at some point in this installation process? </p>
  
  <p>There is an <a href="https://stackoverflow.com/questions/22329284/google-drive-sdk-drive-integration-install-url">Install URL that I can specify in Drive SDK</a> but I can't find documentation about when Google posts to this install URL and what gets posted. </p>
  
  <p><img src="https://i.stack.imgur.com/WYDVb.png" alt="enter image description here"></p>