store.js

import { createStore } from 'redux'
import reducer from './reducers';
 
const initialState = {
    byId: {
        isLoading: null,
        error: null,
        data: null
    },
    byBulk: {
        isLoading: null,
        error: null,
        data: null
    }
};
 
const store = createStore(reducer, initialState, window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__());
 
export default store;