text: import { FETCH_POSTS, FETCH_POST } from '../actions/index';
  
  const INITIAL_STATE = { all: [], post: null };
  
  export default function(state = INITIAL_STATE, action) {
    switch(action.type) {
    case FETCH_POST:
     return { ...state, post: action.payload.data }; 
    case FETCH_POSTS:
      return { ...state, all: action.payload.data };
    default: 
      return state;
    }
  }