title: How to use Laravel passport for Auth and Lumen as api
body: <p>I am researching for develop an API consumed application using laravel, laravel passport , lumen and AngularJS</p>
  
  <p>I have 3 domains as follows</p>
  
  <ul>
  <li><strong>auth.dev</strong> - Laravel 5.4 + Passport oAuth server ( as a auth server )</li>
  <li><strong>api.dev</strong> - Lumen ( as a API seaver ) </li>
  <li><strong>app.dev</strong> - php + angularjs ( single page app )</li>
  </ul>
  
  <p>I can not properly configure those 3 together. I have setup <strong>auth.dev</strong> and it will successfully generate Tokens and I can use them from <strong>app.dev</strong>.</p>
  
  <p>But my requirement is use 3 separate instance for API, Auth and APP</p>
  
  <p>I tried to configure it via Lumen ( to validate Access tokens with auth.dev) but it is not working.</p>
  
  <p>Is this possible or is there any suggestions to achieve this ? </p>