io/release-1.15/samples/bookinfo/src/ratings/ratings.js -o ratings.js
$ curl -s https://raw.githubusercontent.com/istio/istio/release-1.15/samples/bookinfo/src/ratings/package.json -o package.json
</code></pre></li><li><p>Skim the service&rsquo;s code and note the following elements:</p><ul><li>The web server&rsquo;s features:<ul><li>listening to a port</li><li>handling requests and responses</li></ul></li><li>The aspects related to HTTP:<ul><li>headers</li><li>path</li><li>status code</li></ul></li></ul><d