Added node-fetch

This commit adds a node-fetch library to dependencies and adds
a simple method to the Test class which calls it with provided
arguments.

Change-Id: I159d93b37388e3c6884f81a8e6026a514351b71d

package.json

@@ -25,7 +25,8 @@
   "homepage": "http://www.openstack.org/",
   "dependencies": {
     "babel-polyfill": "^6.9.1",
-    "loglevel": "^1.4.1"
+    "loglevel": "^1.4.1",
+    "node-fetch": "^1.5.3"
   },
   "devDependencies": {
     "babel-cli": "^6.10.1",

src/index.js

@@ -1,9 +1,15 @@
 import 'babel-polyfill';
+import fetch from 'node-fetch';
 import log from 'loglevel';
 
 log.setLevel('INFO');
 
 export default class Test {
-  constructor() {
+  getUrl(url) {
+    return fetch(url)
+      .then((response) => {
+        log.info(response.status);
+        return response;
+      });
   }
 }