ProductEdit-index.js

// routes/Products/routes/ProductEdit/index.js

import { injectReducer } from 'store/reducers'

export default (store) => ({
    path : ':id',
    getComponent(nextState, cb) {
        require.ensure([], (require) => {
            const component = require('./container').default
            const reducer = require('./reducers').default

            injectReducer(store, { key: 'product-edit', reducer })

            cb(null, component)

            /* Webpack named bundle   */
        }, 'product-edit')
    }
})

Products-index.js

// routes/Products/index.js
import { injectReducer } from 'store/reducers'

import ProductEdit from './routes/ProductEdit'

export default (store) => {
    return {
        path : 'products',
        childRoutes: [
            ProductEdit(store)
        ],
        getIndexRoute(nextState, cb) {
            require.ensure([], (require) => {
                const component = require('./container').default
                const reducer = require('./reducers').default

                injectReducer(store, { key: 'products', reducer })

                cb(null, { component })

                /* Webpack named bundle   */
            }, 'products')
        }
    }
}