import { STATUS_CARD_FETCH_SUCCESS } from '../actions/cards'; import { Map as ImmutableMap, fromJS } from 'immutable'; const initialState = ImmutableMap(); export default function cards(state = initialState, action) { switch(action.type) { case STATUS_CARD_FETCH_SUCCESS: return state.set(action.id, fromJS(action.card)); default: return state; } };