重构firebase function index.ts代码,以便可以导入触发器

我正在用 https , auth 和 datastore 触发器,所以我想把它们放到不同的文件中。我已经计算出 HTTPS 功能,但我不确定如何将 奥思 功能。我的 index.ts 目前:

import * as express     from 'express';
import * as functions   from 'firebase-functions';
import  { spiceAdmin  } from './base';
import  { spiceServer } from './spiceServer'

import  { server }      from './api-routes/api'


exports.app = functions.https.onRequest(server);



/**
    @Use: send verification email on new user creation
*/
exports.onCreate = functions.auth.user().onCreate( user => {

    spiceAdmin.auth().createUser({
          email         : 'user-auth-ts@gmail.com'
        , emailVerified : false
        , password      : 'Sup3rSafe'
    }) 
    .then((userRecord : any) => console.log('created new user'))
    .catch((err : string) => console.log(`failed to create new user with ${err}`))

});

特别是,如果我有档案 user_auth.ts 有触发器 onCreate 和 onChange ,我怎么会 句法上 编写这些函数,然后导出,然后 exports.... 他们在 index.ts?