title: how to use promises and try catch block
body: <p>I have the following code</p>
  
  <pre><code>var promise = getRaids(client);
  promise.then(function (raids) {
      res.json(raids);
  }, function (err) {
      console.error(err);
      res.send(403, { error: err});
  });
  </code></pre>
  
  <p>I want to transform that to a try catch block, I think it is much more readable.
  What would the code look like?</p>