title: How can I use Olacabs search functionality in my Android App?
body: <p>I am trying to get distance from from user current locations to any nearest cab which are stored in <code>OlaCabs(https://play.google.com/store/apps/details?id=com.olacabs.customer&amp;hl=en)</code> database, so searched for there API and then I found this and tried it:</p>
  
  <ol>
  <li><p>I went to <a href="http://docs.console.olacabs.com/ola" rel="nofollow">http://docs.console.olacabs.com/ola</a> and typed lat and lng for a city 
  and tried to get result. But it always returned me <em>"error": "Authorization field missing"</em> in the response. I have tried for more than one cities but always got this response.</p></li>
  <li><p>One more thing that I want to ask is about the <code>API key</code>. Do I need to contact to this service provider to get that or it is something else. Please do provide an example.</p></li>
  </ol>