root-reducer.js

import { handleActions } from 'redux-actions';
import { combineReducers } from 'redux';
|
import actionGenerators from './actions-generators';

const initialCRUD = fromJS({
  data: null, operation: 'reset', error: false
});
const reducers = {};
const generateReducerFromAction = action => handleActions({
  [action.start]: (state, { payload }) => {
    ...state, operation: 'start', error: false
  }),
  [action.cancel]: state => ({
    ...state, operation: 'cancel'
  }),
  [action.succeed]: (state, { payload }) => ({
    ...state, operation: 'succeed', data: payload, meta
  }),
  [action.fail]: (state) => ({
    ...state, operation: 'fail', error: true
  }),
  [action.reset]: state => initialCRUD
}, initialCRUD);

Object.keys(actionGenerators).forEach(group => {
  Object.keys(actionGenerators[group]).forEach(action => {
    reducers[action] = generateReducerFromAction(actionGenerators[group][action]);
  });
});

export default combineReducers(reducers);