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How I'd do code splitting in Redux (pseudo code, not tested!)
import { combineReducers } from 'redux';
import users from './reducers/users';
import posts from './reducers/posts';
export default function createReducer(asyncReducers) {
return combineReducers({
import { injectAsyncReducer } from './store';
function createRoutes(store) {
// ...
const CommentsRoute = {
// ...
getComponents(location, callback) {
], function (require) {
let Comments = require('./pages/Comments').default;
let commentsReducer = require('./reducers/comments').default;
injectAsyncReducer(store, 'comments', commentsReducer);
callback(null, Comments);
// ...
import { createStore } from 'redux';
import createReducer from './reducers';
export default function configureStore() {
let store = createStore(createReducer());
store.asyncReducers = {};
return store;
export function injectAsyncReducer(store, name, asyncReducer) {
store.asyncReducers[name] = reducer;
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HaNdTriX commented Mar 19, 2017

Just in case someone is interested.
I have implemented a running ssr example for next.js.


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cvbuelow commented Sep 30, 2017

Here's a solution for injecting the initialState in async reducers, suggested by @gaearon

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