- implementing immutable.js

app/reducers/events.js

@@ -1,16 +1,17 @@
+import { Map } from 'immutable';
+
 import { EVENTS_LOADED, GET_EVENTS } from '../constants/actionTypes.js';
 
-export const events = (state = {}, action) => {
+export const events = (state = new Map(), action) => {
   switch (action.type) {
-    case GET_EVENTS:
-      return Object.assign({}, state, {
-        isFetching: true,
-      });
     case EVENTS_LOADED:
-      return Object.assign({}, state, {
-        events: action.payload,
-        isFetching: false,
-      });
+      return state.merge(
+        action.payload.toMap().mapEntries((entry) => {
+          const [, event] = entry;
+          return [`${event.id}`, event];
+        }),
+      );
+    case GET_EVENTS:
     default:
       return state;
   }