e> requests on the <code>/ratings/{productID}</code> path and update the
ratings of the product matching the value you specify for <code>productID</code>.</li></ul><p>Follow these steps to download the code of the app, install its dependencies,
and run it locally:</p><ol><li><p>Download
<a href=https://github.com/istio/istio/blob/release-1.20/samples/bookinfo/src/ratings/ratings.js>the service&rsquo;s code</a>
and
<a href=https://github.com/istio/istio/blob/release-1.20/samples/bookinfo/src/ratings/package.