title: Laravel `jwt.refresh` token?
body: <p>I'm using the <code>tymon/jwt-auth</code> package for authentication an api with Laravel. It's working quite well and I have everything working properly.</p>
  
  <p>However I'm unsure how to setup the <code>jwt.refresh</code> token middleware. I'm under the assumption that it will "auto-refresh" the token when expired?</p>
  
  <p>I've add both to my middleware but can't seem to make it work.</p>
  
  <pre><code>Route::group([
      'prefix' =&gt; 'api/v1',
      'namespace' =&gt; 'Api\v1',
      'middleware' =&gt; ['jwt.auth', 'jwt.refresh']
  ], function ($app) {
  
      // Routes here
  
  });
  </code></pre>
  
  <p>Perhaps I'm not sure how it works exactly, do I need to do polling for a some refresh end point. I kind of thought that was what the middleware was supposed to do automatically per request?</p>