feat: Add service to connect to web api

package.json

@@ -32,5 +32,9 @@
     "onchange": "^5.1.3",
     "webpack": "^4.26.1",
     "webpack-cli": "^3.1.2"
+  },
+  "dependencies": {
+    "ky": "^0.5.1",
+    "whatwg-fetch": "^3.0.0"
   }
 }

src/rosetta-service.js

@@ -0,0 +1,20 @@
+// This is a polyfill to use window.fetch on older browsers
+import 'whatwg-fetch';
+import ky from 'ky';
+import nestify from './utils/nestify';
+
+const rosettaService = (id = '', { prefixUrl = '' }) => {
+  const api = ky.extend({ prefixUrl });
+
+  return {
+    getNames: (culture = [], names = []) => api.get(`${id}/names`, {
+      searchParams: {
+        names: names.toString(),
+        culture: culture.toString(),
+      },
+    }).then(data => nestify(data)),
+    getCultures: () => api.get(`${id}/cultures`),
+  };
+};
+
+module.exports = rosettaService;

src/utils/is-plain-object.js

@@ -0,0 +1,3 @@
+export default t => !!t
+  && (typeof t === 'object')
+  && Object.prototype.toString.call(t) === '[object Object]';

src/utils/nestify.js

@@ -0,0 +1,24 @@
+import isObject from './is-plain-object';
+
+const nestify = (obj, context = {}) => Object.keys(obj)
+  .reduce((baseObj, key) => {
+    const [thisKey, ...otherKeys] = key.split('.');
+    const keysToBeNested = otherKeys.join('.');
+    const originalValue = obj[key];
+    const shouldReturnSame = !keysToBeNested && !isObject(originalValue);
+
+    const objToNest = keysToBeNested
+      ? { [keysToBeNested]: originalValue }
+      : originalValue;
+
+    const nestifiedObj = shouldReturnSame
+      ? { [key]: originalValue }
+      : { [thisKey]: nestify(objToNest, baseObj[thisKey]) };
+
+    return {
+      ...baseObj,
+      ...nestifiedObj,
+    };
+  }, context);
+
+export default nestify;