title: Converting curl to vb net
body: <p>I have this curl command:</p>
  <pre><code>curl -X GET 'https://nebula-eu.kampyle.com/kma/api/feedback?startDate=1483228800' \  
  -H 'authorization: Basic SomeKeyHere'
  </code></pre>
  <p>can you explain how convert this code into vb.net and download json file?</p>