talk/client/coral-framework/services/store.js

import {createStore, combineReducers, applyMiddleware, compose} from 'redux';
import thunk from 'redux-thunk';
import mainReducer from '../reducers';
import {client} from './client';

const middlewares = [
  applyMiddleware(client.middleware()),
  applyMiddleware(thunk)
];

if (window.devToolsExtension) {

  // we can't have the last argument of compose() be undefined
  middlewares.push(window.devToolsExtension());
}

export default createStore(
  combineReducers({
    ...mainReducer,
    apollo: client.reducer()
  }),
  {},
  compose(...middlewares)
);