text: import {FETCH_POSTS, FETCH_POST, DELETE_POST} from "../actions/index";
  import _ from 'lodash';
  
  export default function (state = {}, action) {
      switch (action.type) {
          case FETCH_POSTS:
              return _.mapKeys(action.payload.data, 'id');
          case FETCH_POST:
              // const post = action.payload.data;
              // const newState = {...state};
              // newState[post.id] = post;
              // return newState;
  
              return {...state, [action.payload.data.id]: action.payload.data};
          case DELETE_POST:
              return _.omit(state, action.payload)
          default: return state;
      }
  }