node.js – Firebase的云功能：如何向我的Cloud Endpoint发出请求

我正在尝试在firebase数据库中写入某个值时向我的云端点项目发出请求.我找不到任何如何在Node.js中对端点执行请求的示例.这是我到目前为止所提出的：

"use Strict";
const functions = require('firebase-functions');
const admin = require('firebase-admin');
const gapi = require('googleapis');

admin.initializeApp(functions.config().firebasE);

exports.doCalc = functions.database.ref('/users/{uiD}/calc').onWrite(event => {
    return gapi.client.init({
            'apiKey': 'AIzxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx','clientId': '1234567890-xxx.apps.googleusercontent.com','scope': 'donno what to put here'
       }).then(function() {
           return gapi.client.request({
               'path': 'https://myproj.appspot.com/_ah/api/myApi/v1','params': {'query': 'startCalc',uid: event.paramS.Uid }
           })
       }).then(function(responsE) {
           console.log(response.result);
       },function(reason) {
           console.log('Error: ' + reason.result.error.messagE);
       });
});

触发时,函数的日志喷口：TypeError：无法读取未定义的属性’init’.即使甚至不认识gapi.client.

首先,用于此请求的正确包装是什么？ googleapis？请求承诺？

第二,我是否为端点调用设置了正确的路径和参数？假设端点函数是startCalc(int uid).

"use Strict";
const functions = require('firebase-functions');
const request = require('request-promise');
const admin = require('firebase-admin');

admin.initializeApp(functions.config().firebasE);

exports.doCalc = functions.database.ref('/users/{uiD}/calc').onWrite(event => {
    return request({
        url: `https://myproj.appspot.com/_ah/api/myApi/v1/startCalc/${event.paramS.UiD}`,method: 'POST'
    }).then(function(resp) {
        console.log(resp);
    }).catch(function(error) {
        console.log(error.messagE);
    });
});