Add React Map

common/app/routes/map/redux/reducer.js

@@ -0,0 +1,17 @@
+import { handleActions } from 'redux-actions';
+
+import types from './types';
+
+const initialState = {
+  superBlocks: []
+};
+
+export default handleActions(
+  {
+    [types.fetchChallengesCompleted]: (state, { payload = [] }) => ({
+      ...state,
+      superBlocks: payload
+    })
+  },
+  initialState
+);