chore(server): Move api-server in to it's own DIR

api-server/server/services/challenge.js

@@ -0,0 +1,58 @@
+import debug from 'debug';
+import { pickBy } from 'lodash';
+import { Observable } from 'rx';
+
+import { cachedMap, getChallenge } from '../utils/map';
+import { shapeChallenges } from '../../common/app/redux/utils';
+
+const log = debug('fcc:services:challenge');
+const isDev = debug.enabled('fcc:*');
+
+export default function getChallengesForBlock(app) {
+  const challengeMap = cachedMap(app.models);
+  return {
+    name: 'challenge',
+    read: function readChallengesForBlock(
+        req,
+        resource,
+        { dashedName, blockName} = {},
+        config,
+        cb
+      ) {
+      const getChallengeBlock$ = challengeMap
+        .flatMap(({
+          result: { superBlocks },
+          entities: {
+            block: fullBlockMap,
+            challenge: challengeMap
+          }
+        }) => {
+          log(`sourcing challenges for the ${blockName} block`);
+          const requestedChallenges = pickBy(
+            challengeMap,
+            ch => ch.block === blockName
+          );
+          const entities = {
+            block: {
+              [blockName]: fullBlockMap[blockName]
+            },
+            challenge: requestedChallenges
+          };
+          const { challenge, block } = shapeChallenges(entities, isDev);
+          return Observable.of({
+            result: { superBlocks },
+            entities: { challenge, block }
+          });
+        });
+      return Observable.if(
+        () => !!dashedName,
+        getChallenge(dashedName, blockName, challengeMap, 'en'),
+        getChallengeBlock$
+      )
+        .subscribe(
+          result => cb(null, result),
+          cb
+        );
+    }
+  };
+}