y>'
});

var params = {
  start: 'now-1d',
  end: 'now'
};

alchemy_data_news.getNews(params, function (err, news) {
  if (err)
    console.log('error:', err);
  else
    console.log(JSON.stringify(news, null, 2));
});</code></pre><h3>Authorization</h3><p>The Authorization service can generates tokens, this are useful when it's too cumbersome to provide a username/password pair.
Tokens are valid for 1 hour and need to be send using the <code>X-Watson-Authorization-Token</code> header.</p>
<pre class="pretty