ng2-redux对象列表的初始状态

Question

我是ng2-flux的初学者。我已经实现了一个员工商店，它需要调用员工数据库以获得相同的INITIAL_STATE。我如何或在何处放置它。

employee.types.ts -

import { TypedRecord, makeTypedFactory } from 'typed-immutable-record';

import { IEmployee } from "../../common/models";

export interface IEmployeeState extends Array<IEmployee> { }

// const INITIAL_STATE = 

employee.reducer.ts -

import { IEmployee } from "../common/models/index";

export const EmployeeReducer = (state: Array<IEmployee> = null, action: any) => {
    switch (action.type) {
        case action.ADD_EMPLOYEE:
            return [...state, action.payload]
        default:
            return state;
    }
}

我需要调用初始API来初始化状态。因为它不是Angular2服务而且它只是一个减速器。我该怎么做呢 。