text: import * as types from '../mutations'
  import { listProductSSEAPI } from '../../api'
  
  const state = {
    productList: []
  }
  
  const getters = {
    productList: state => {
      return state.productList
    }
  }
  
  const mutations = {
    [types.SET_PRODUCT_LIST] (state, payload) {
      state.productList = payload
    }
  }
  
  let theSSEPromise
  
  const actions = {
    getProductListSSE ({ commit, state }) {
      if (theSSEPromise && theSSEPromise.isAlive()) {
        return theSSEPromise
      } else {
        theSSEPromise = listProductSSEAPI().then(res => {
          commit(types.SET_PRODUCT_LIST, res.data)
        })
        return theSSEPromise
      }
    }
  }
  
  export default {
    state,
    getters,
    actions,
    mutations
  }
  